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Proceedings, 2023, EcoBalt 2023

International Conference EcoBalt 2023 "Chemicals & Environment"

Tallinn, Estonia | 09–11 October 2023

Volume Editors:
Monika Mortimer, National Institute of Chemical Physics and Biophysics, Estonia
Anne Kahru, National Institute of Chemical Physics and Biophysics, Estonia
Ivo Leito, University of Tartu, Estonia
Riin Rebane, University of Tartu, Estonia; Estonian Environmental Research Centre, Estonia
Villem Aruoja, National Institute of Chemical Physics and Biophysics, Estonia

Number of Papers: 87

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Cover Story (view full-size image): The 23rd biennial conference EcoBalt2023 took place in Tallinn, Estonia, continuing the tradition of international EcoBalt conferences in bringing together scientists, students, educators, [...] Read more.
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Editorial

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1 pages, 159 KiB  
Editorial
Statement of Peer Review
by Monika Mortimer, Anne Kahru, Ivo Leito, Riin Rebane and Villem Aruoja
Proceedings 2023, 92(1), 3; https://doi.org/10.3390/proceedings2023092003 - 20 Nov 2023
Viewed by 704
Abstract
In submitting conference proceedings to Proceedings, the volume editors of the proceedings certify to the publisher that all papers published in this volume have been subjected to peer review administered by the volume editors [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
3 pages, 2805 KiB  
Editorial
The 23rd Biennial Conference EcoBalt 2023 in Tallinn, Estonia
by Monika Mortimer, Anne Kahru, Ivo Leito, Riin Rebane and Villem Aruoja
Proceedings 2023, 92(1), 26; https://doi.org/10.3390/proceedings2023092026 - 21 Nov 2023
Viewed by 818
Abstract
The 23rd biennial conference EcoBalt2023 took place in Tallinn, Estonia, continuing the tradition of international EcoBalt conferences in bringing together scientists, students, educators, regulators, and industry representatives from the Baltic States and nearby regions [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
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Research

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2 pages, 162 KiB  
Abstract
Endocrine Disrupting Activity of Mixtures Composed of Pharmaceuticals and Nanoplastics
by Lucija Božičević, Nikolina Peranić, Nikolina Kalčec and Ivana Vinković Vrček
Proceedings 2023, 92(1), 1; https://doi.org/10.3390/proceedings2023092001 - 20 Nov 2023
Viewed by 652
Abstract
Endocrine disrupting chemicals (EDCs) are defined as “an exogenous chemical or mixture of chemicals that can interfere with any aspect of the hormone action” [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 178 KiB  
Abstract
Pilot Study of Grassland Soil Soluble Organic Matter with High-Resolution Mass Spectrometry
by Anna Zobel
Proceedings 2023, 92(1), 2; https://doi.org/10.3390/proceedings2023092002 - 20 Nov 2023
Viewed by 573
Abstract
Soil is the largest terrestrial carbon pool and regulates carbon, water, and nutrient cycles [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 163 KiB  
Abstract
Electrodeposited Cu Nanofoam Structures for Electrochemical CO2 Reduction
by Birutė Serapinienė, Laima Gudavičiūtė and Rimantas Ramanauskas
Proceedings 2023, 92(1), 4; https://doi.org/10.3390/proceedings2023092004 - 20 Nov 2023
Viewed by 501
Abstract
An exclusive Cu surface feature has the ability to convert CO2 into hydrocarbons with significant Faradaic efficiency [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 167 KiB  
Abstract
Mitigation of Metal Oxide Nanotoxicity with Functional Fibrils
by Yue Wang, Xiufang Liang, Fei He, Huayuan Tang, Xiang Yin, Nicholas Andrikopoulos, Yuhuan Li, Monika Mortimer, Guotao Peng and Pu Chun Ke
Proceedings 2023, 92(1), 5; https://doi.org/10.3390/proceedings2023092005 - 21 Nov 2023
Viewed by 674
Abstract
The toxicity of metal oxide nanoparticles has been a central research topic over the past two decades, owing to the domestic and industrial applications of this vast class of nanomaterials [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 173 KiB  
Abstract
Antioxidative and Anti-Borrelia Effects of Plantago Species
by Pille-Riin Laanet, Regina Drošnova, Piret Saar-Reismaa, Olga Bragina and Merike Vaher
Proceedings 2023, 92(1), 6; https://doi.org/10.3390/proceedings2023092006 - 21 Nov 2023
Viewed by 702
Abstract
Borrelia burgdorferi sensu lato bacteria are the causative agent of Lyme disease, Europe’s most common vector-borne disease [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 160 KiB  
Abstract
What Phytoplankton Species Can Tell Us about the Implications of Engineered Nanoparticles in the Aquatic Environment
by Vera I. Slaveykova
Proceedings 2023, 92(1), 7; https://doi.org/10.3390/proceedings2023092007 - 21 Nov 2023
Viewed by 552
Abstract
Nanotechnology is considered as the “sixth truly revolutionary technology” introduced into the modern world [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 179 KiB  
Abstract
“Hook & Loop” Interactions between Fibrous Microplastics and Zooplankton
by Cuizhu Ma and Vera I. Slaveykova
Proceedings 2023, 92(1), 8; https://doi.org/10.3390/proceedings2023092008 - 21 Nov 2023
Viewed by 566
Abstract
Today, microplastics (1 m–5 mm) have been found within organisms ranging from small invertebrates to large mammals [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 180 KiB  
Abstract
Identification of Emerging Contaminants in the Estonian Aquatic Environment
by Mailis Laht, Krista Mõts and Laine Parts
Proceedings 2023, 92(1), 9; https://doi.org/10.3390/proceedings2023092009 - 21 Nov 2023
Viewed by 535
Abstract
Internationally agreed long-term monitoring indicators do not consider the risks of new synthetic substances [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 190 KiB  
Abstract
Future Perspective of In Situ Soil Analysis
by Mari-Liis Leinus, Piia Jõul, Martin Růžička, Jelena Gorbatšova, Merike Vaher, Ruth Shimmo and Jekaterina Mazina-Šinkar
Proceedings 2023, 92(1), 10; https://doi.org/10.3390/proceedings2023092010 - 21 Nov 2023
Viewed by 639
Abstract
Soil health monitoring is becoming progressively more important to meet the needs of sustainable agriculture and climate policy goals [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 164 KiB  
Abstract
The Environmental Safety Aspects of Technologically Powerful Materials Are Often Overlooked
by Anne Kahru, Margit Heinlaan, Irina Blinova, Villem Aruoja, Kaja Kasemets, Asya Drenkova-Tuhtan, Mariliis Sihtmäe and Monika Mortimer
Proceedings 2023, 92(1), 11; https://doi.org/10.3390/proceedings2023092011 - 21 Nov 2023
Viewed by 558
Abstract
Novel materials and their combinations are the basis of societal progress: stone—Stone Age; bronze—Bronze Age; iron—Iron Age [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 157 KiB  
Abstract
The Water Flea as a “Canary in the Coal Mine”—Using Phenotypic and Molecular Endpoints to Understand Pollution
by Emma Rowan, Anne Leung, Maria Giannouli, Katie O’Rourke and Konstantinos Grintzalis
Proceedings 2023, 92(1), 12; https://doi.org/10.3390/proceedings2023092012 - 21 Nov 2023
Viewed by 629
Abstract
The assessment of pollution is a serious issue and a major consequence of the overgrowing human population and its activities. Focusing on the aquatic ecosystem, traditional approaches of water chemistry mainly provide minimal monitoring with the detection of pollutants, while they fail to [...] Read more.
The assessment of pollution is a serious issue and a major consequence of the overgrowing human population and its activities. Focusing on the aquatic ecosystem, traditional approaches of water chemistry mainly provide minimal monitoring with the detection of pollutants, while they fail to produce mechanistic or predictive insight. As such, effect-based methods have gained significant attention for the better mechanistic understanding of aquatic pollution. Among the key species used, daphnids have acquired a central position in aquatic toxicology and ecology. In this study, a novel feeding assay was developed and applied in a battery of exposures to different pollutants. Furthermore, in combination with biochemical markers and sensitive metabolomic analyses, the responses of daphnids following exposures were uncovered in molecular detail. Specific categories of metabolites were identified as significant indicators to predict pollution. Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 169 KiB  
Abstract
Current Approaches to the Derivatization of Chemical Weapon Convention-Related Alcohol for On-Site Gas Chromatographic Analysis
by Tomas Rozsypal
Proceedings 2023, 92(1), 13; https://doi.org/10.3390/proceedings2023092013 - 21 Nov 2023
Viewed by 523
Abstract
The task of deployable military laboratories is to perform the fast identification of chemical warfare agents (CWAs) and related chemicals in various types of samples in field conditions [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
1 pages, 155 KiB  
Abstract
Polymeric Hydrogels for the Removal of Emerging Contaminants from Water
by Giusy Curcuruto, Chiara Zagni and Sabrina Carola Carroccio
Proceedings 2023, 92(1), 14; https://doi.org/10.3390/proceedings2023092014 - 21 Nov 2023
Viewed by 583
Abstract
Herein, a proof of concept is reported, concerning the formulation of methacrylic and styrene-based hydrogels with adsorption properties versus the emerging pollutants (dyes, pesticides, and pharmaceuticals). The synthesis of the hydrogels was achieved by functionalizing the HEMA monomer with specifically chelating groups, such [...] Read more.
Herein, a proof of concept is reported, concerning the formulation of methacrylic and styrene-based hydrogels with adsorption properties versus the emerging pollutants (dyes, pesticides, and pharmaceuticals). The synthesis of the hydrogels was achieved by functionalizing the HEMA monomer with specifically chelating groups, such as amino acids (lysine and histidine), cyclodextrins, and meglumine. The as-prepared monomers were polymerized in water at different temperatures to obtain macroporous samples. All the samples were characterized by chemical–physical and morphological analyses confirming the success of the reactions. The resulting systems were successfully tested to adsorb 2, 4 D, methylene blue, and lomefloxacin. In addition, up to five cycles of regeneration tests were performed, confirming the aptitude of the samples to be used several times without losing efficiency and maintaining their mechanical properties. Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 192 KiB  
Abstract
Production and Characterization of Polysaccharides from Rhodotorula toruloides 
by Henrique Sepulveda Del Rio Hamacek, Petri-Jaan Lahtvee and Rahul Kumar
Proceedings 2023, 92(1), 15; https://doi.org/10.3390/proceedings2023092015 - 21 Nov 2023
Viewed by 646
Abstract
The increasing demand for sustainable material production has fueled extensive research on alternative polysaccharide sources [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 198 KiB  
Abstract
Effect of MgO Templating on the Synthesis and Properties of Dissolved Lignin-Based Hard Carbon for Na-Ion Battery Applications
by Angelo Robiños, Hao Zhang, Zekra Mousavi, Jan-Henrik Smått, Tor Laurén, Leena Hupa, Chunlin Xu and Johan Bobacka
Proceedings 2023, 92(1), 16; https://doi.org/10.3390/proceedings2023092016 - 21 Nov 2023
Viewed by 668
Abstract
The increasing use of wind and solar energy creates an enormous need for intermittent storage of electrical energy in batteries [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 177 KiB  
Abstract
Toxicity of Silver–Chitosan Nanocomposites to Aquatic Species
by Mariliis Sihtmäe, Jüri Laanoja, Irina Blinova, Anne Kahru and Kaja Kasemets
Proceedings 2023, 92(1), 17; https://doi.org/10.3390/proceedings2023092017 - 21 Nov 2023
Viewed by 624
Abstract
According to the World Health Organization, antimicrobial resistance (AMR) is one of the top ten global public health threats, justifying the need for new effective antimicrobials for biomedical applications [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 158 KiB  
Abstract
Development of a Harmonised Methodology for Narva River Water Discharge Estimation
by Yaroslav Kobets and Alvina Reihan
Proceedings 2023, 92(1), 18; https://doi.org/10.3390/proceedings2023092018 - 21 Nov 2023
Viewed by 540
Abstract
The Narva River has its source in Lake Peipsi and flows into the Gulf of Finland [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 162 KiB  
Abstract
Variation of Carbon- and Nitrogen-Stable Isotope Ratios in Conventionally and Organically Fertilized Cereals at Different Growth Stages
by Lauma Busa, Gunita Celma, Linda Legzdina, Arturs Viksna and Indra Locmele
Proceedings 2023, 92(1), 19; https://doi.org/10.3390/proceedings2023092019 - 21 Nov 2023
Viewed by 591
Abstract
Over recent decades, the cereal grain market has experienced notable changes [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 171 KiB  
Abstract
Neonicotinoids: Agrochemicals with Toxic Impact on Reproductive Functions in Males
by Tomas Jambor, Lucia Zuscikova, Hana Greifova, Nikola Knizatova, Anton Kovacik and Norbert Lukac
Proceedings 2023, 92(1), 20; https://doi.org/10.3390/proceedings2023092020 - 21 Nov 2023
Viewed by 529
Abstract
In general, agrochemicals are compounds used to control weeds and diseases in crops during many agronomic practices, and they have become an essential tool in crop protection [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 216 KiB  
Abstract
Extraction and Determination of Total Phenolic Contents, Flavonoid Contents, and Volatile Compounds in Epilobium angustifolium and Cannabis sativa Varieties
by Kristin Düüna, Piia Jõul and Merike Vaher
Proceedings 2023, 92(1), 21; https://doi.org/10.3390/proceedings2023092021 - 21 Nov 2023
Viewed by 808
Abstract
Plants are a natural source of phytochemicals, many of which have favorable bioactive properties for human health and are therefore used in ethnomedicine for preventing and treating a variety of diseases [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
1 pages, 152 KiB  
Abstract
The Challenge of Understanding—From Protozoa to Ecosystems
by Priit Zingel
Proceedings 2023, 92(1), 22; https://doi.org/10.3390/proceedings2023092022 - 21 Nov 2023
Viewed by 540
Abstract
We live in the information age, but we still do not fully understand how the surrounding nature exchanges, collects, and manages information—both at the ecosystem and cellular levels. Still, it is crucial to possess a dynamic and developing comprehension of the functioning of [...] Read more.
We live in the information age, but we still do not fully understand how the surrounding nature exchanges, collects, and manages information—both at the ecosystem and cellular levels. Still, it is crucial to possess a dynamic and developing comprehension of the functioning of nature in order to understand the phenomena occurring in our ever-changing world. Sometimes we encounter an attitude that there is no need to investigate anything further, as everything has already been researched. This is a very dangerous attitude. Without information, we should not actually talk about the age of information, and it is worth reviewing some knowledge that is deeply ingrained in us from time to time. Occasionally, it is worth taking a step back and considering whether we ourselves may have become trapped in dogmas that may hinder our understanding. This presentation focuses on various aspects of understanding nature, starting from single-celled organisms and ending with ecosystems. The topics that will be discussed among others are (1) infochemicals (how do they actually affect the biota?); (2) the remarkable process of cellular computation (does this imply that cellular materials can show a primitive intelligence?); and (3) the ability of plants to influence wind patterns and bring in more moisture from the ocean (what will happen to us when we excessively deforest?). Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 160 KiB  
Abstract
The Activity of Nanomaterials in Photocatalysis
by Marina Krichevskaya
Proceedings 2023, 92(1), 23; https://doi.org/10.3390/proceedings2023092023 - 21 Nov 2023
Viewed by 546
Abstract
Several environmental issues need to be addressed, including air pollution and human exposure to the low concentrations of volatile organic compounds that have been detected indoors [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 174 KiB  
Abstract
Metal–Phenolic Network-Coated Nanoparticles for Reducing the Toxicity of Metal Nanomaterials
by Monika Mortimer, Anett Välimets and Anne Kahru
Proceedings 2023, 92(1), 24; https://doi.org/10.3390/proceedings2023092024 - 21 Nov 2023
Cited by 1 | Viewed by 581
Abstract
The growing use of metal nanomaterials (including Ag-, Cu- and Zn-based nanoparticles (NPs)) in medical applications but also in various green technologies is expected to result in an elevated environmental burden of toxic metals and NPs [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 166 KiB  
Abstract
Low-Temperature Synthesis and Characterization of Iron Whitlockite (Ca18Fe2(HPO4)2(PO4)12)
by Aleksej Zarkov, Diana Griesiute, Arita Dubnika, Dominika Zakutna and Vaclav Tyrpekl
Proceedings 2023, 92(1), 25; https://doi.org/10.3390/proceedings2023092025 - 21 Nov 2023
Cited by 1 | Viewed by 808
Abstract
Calcium phosphates (CPs) represent the most widespread class of bioceramic materials used for bone regeneration purposes due to their excellent biological performance and similarity to the natural bone [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 176 KiB  
Abstract
Crystal and Magnetic Structure Transitions in Doped Lu- and Fe-Based Perovskite Oxides
by Andrius Pakalniškis, Gediminas Niaura, Dmitry Karpinsky, Guillaume Rogez, Pierre Rabu, Shih-Wen Chen, Thomas Chung-Kuang Yang, Ramūnas Skaudžius and Aivaras Kareiva
Proceedings 2023, 92(1), 27; https://doi.org/10.3390/proceedings2023092027 - 22 Nov 2023
Viewed by 598
Abstract
The possibility of controlling physical properties via chemical doping is particularly important when considering the formation of both electrical and magnetic orderings in the same compounds, which are commonly referred as multiferroics [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 183 KiB  
Abstract
Nanocomposite Metal Oxide/Hydroxide Adsorbents for Advanced Wastewater Treatment and Toxicological Risk Assessment for the Aquatic Environment
by Asya Drenkova-Tuhtan, Mariliis Sihtmäe, Irina Blinova, Kevin Uke, Heiki Vija and Anne Kahru
Proceedings 2023, 92(1), 28; https://doi.org/10.3390/proceedings2023092028 - 22 Nov 2023
Viewed by 594
Abstract
Phosphorus (P) is a key nutrient for agriculture [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
1 pages, 146 KiB  
Abstract
Water Quality Index (WQI) as a Tool to Assess Waterbody Status: Joint WQI Model Development for River Narva and the Rivers of the Lake Peipsi Basin (Based on Results of the NarvaWatMan Project)
by Kati Roosalu
Proceedings 2023, 92(1), 29; https://doi.org/10.3390/proceedings2023092029 - 22 Nov 2023
Viewed by 521
Abstract
One of the aims of The European Water Framework Directive (WFD) is that the Member States monitor and assess the ecological and chemical status of all surface water bodies (rivers, lakes, transitional and coastal waters) and to ensure that they achieve a good [...] Read more.
One of the aims of The European Water Framework Directive (WFD) is that the Member States monitor and assess the ecological and chemical status of all surface water bodies (rivers, lakes, transitional and coastal waters) and to ensure that they achieve a good status by 2027, with an interim deadline of 2021 [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 151 KiB  
Abstract
Liquid Complex Fertilizers with Bio-Additives
by Kristina Jančaitienė and Ramunė Sidaraitė
Proceedings 2023, 92(1), 30; https://doi.org/10.3390/proceedings2023092030 - 22 Nov 2023
Viewed by 767
Abstract
Every year, approximately 2 [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 160 KiB  
Abstract
Multi-Element Profile Characterization in Monofloral Honey
by Kriss Davids Labsvards, Anastasija Borisova, Kristina Kokina, Maris Bertins, Arturs Viksna and Vita Rudovica
Proceedings 2023, 92(1), 31; https://doi.org/10.3390/proceedings2023092031 - 22 Nov 2023
Viewed by 746
Abstract
Apiculture, in general, is an important sector of the national economy due to the environmental benefits of pollination [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 178 KiB  
Abstract
Application of Fly Ash of Lignite Combustion in Air and Water Purification
by Dmitri Nikitin, Juri Bolobajev, Marina Krichevskaya, Lukas Pilar, Monika Vitvarova, Sergei Preis and Niina Dulova
Proceedings 2023, 92(1), 32; https://doi.org/10.3390/proceedings2023092032 - 22 Nov 2023
Viewed by 585
Abstract
The study was aimed at evaluating the catalytic and photocatalytic properties of lignite fly ash samples, S1 and S2, from the Pilsen Power Station (Teplárna Plzeň) collected using electrostatic precipitators with relatively high contents of Fe2O3 (6 [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 180 KiB  
Abstract
Biocompatibility of Metal–Phenolic Network-Coated Nanoparticles
by Anett Välimets, Kairi Koort and Monika Mortimer
Proceedings 2023, 92(1), 33; https://doi.org/10.3390/proceedings2023092033 - 22 Nov 2023
Viewed by 714
Abstract
Metal–phenolic networks (MPNs) are novel adsorbent materials that have promising applications in the environmental remediation of organic pollutants and heavy metals [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 172 KiB  
Abstract
Analysis and Usage Perspective of Solid Digestate
by Eglė Didžiulytė and Rasa Šlinkšienė
Proceedings 2023, 92(1), 34; https://doi.org/10.3390/proceedings2023092034 - 22 Nov 2023
Viewed by 501
Abstract
Extremely intensive and chemicalized agriculture severely damages the naturally formed eco-system [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 164 KiB  
Abstract
Synthesis and Antibacterial Efficiency of Chitosan–Copper Oxide Nanocomposites
by Jüri Laanoja, Mariliis Sihtmäe, Maarja Otsus, Anne Kahru and Kaja Kasemets
Proceedings 2023, 92(1), 35; https://doi.org/10.3390/proceedings2023092035 - 22 Nov 2023
Viewed by 581
Abstract
Antimicrobial resistance is among the most serious global healthcare problems today [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 189 KiB  
Abstract
Viral Effect on Carbon and Nitrogen Cycling in Bloom-Forming Cyanobacteria
by Sigitas Šulčius, Jolita Kuznecova, Adam Antosiak, Gediminas Alzbutas, Valiantsin Lukashevich and Dariusz Dziga
Proceedings 2023, 92(1), 36; https://doi.org/10.3390/proceedings2023092036 - 23 Nov 2023
Viewed by 654
Abstract
Viruses can significantly influence the biogeochemical cycling of major nutrients through the infection and lysis of cyanobacteria, a globally important primary producer [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 169 KiB  
Abstract
Spray-Pyrolysis Synthesised TiO2 Thin Films for Photocatalytic Air Treatment from Volatile Organic Compounds
by Jekaterina Sydorenko, Malle Krunks, Arvo Mere, Marina Krichevskaya and Ilona Oja Acik
Proceedings 2023, 92(1), 37; https://doi.org/10.3390/proceedings2023092037 - 23 Nov 2023
Viewed by 588
Abstract
A wide range of mixtures of volatile organic compounds (VOCs), which are present in indoor air in low concentrations, can strongly affect human health [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 470 KiB  
Abstract
Burning of Fountain Candles Indoor—A Moment of Joy versus Indoor Air Quality Concerns
by Agnese Araja, Maja Remskar, Maris Bertins, Laima Plaveniece and Arturs Viksna
Proceedings 2023, 92(1), 38; https://doi.org/10.3390/proceedings2023092038 - 23 Nov 2023
Viewed by 631
Abstract
Burning candles, magic candles, incense, and pyrotechnics such as fountain candles creates a sense of joy and celebration in various life and social events [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
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2 pages, 162 KiB  
Abstract
Use of Neoteric Solvents in Biomass Treatment
by Merike Vaher, Piret Saar-Reismaa, Maria Kuhtinskaja and Mihkel Koel
Proceedings 2023, 92(1), 39; https://doi.org/10.3390/proceedings2023092039 - 23 Nov 2023
Viewed by 640
Abstract
Research on the use of neoteric solvents has been motivated by an increase in pollution-controlled legislation and more regulations of common solvents, especially related to the treatment of biomass [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 166 KiB  
Abstract
Silver–Chitosan Nanocomposites for Biomedical Application: Design, Synthesis and Antimicrobial Efficiency
by Kaja Kasemets, Jüri Laanoja, Mariliis Sihtmäe, Heiki Vija, Imbi Kurvet, Maarja Otsus and Anne Kahru
Proceedings 2023, 92(1), 40; https://doi.org/10.3390/proceedings2023092040 - 24 Nov 2023
Viewed by 625
Abstract
Hospital-acquired infections are serious medical problems worldwide [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 184 KiB  
Abstract
Droplet-Based Technology for Studying the Phenotypic Effect of Microplastics on Antimicrobial Resistance
by Simona Bartkova, Fenella Lucia Sulp, Immanuel Sanka, Pille Pata and Ott Scheler
Proceedings 2023, 92(1), 41; https://doi.org/10.3390/proceedings2023092041 - 24 Nov 2023
Viewed by 771
Abstract
Plastic pollution is a global emergency [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 489 KiB  
Abstract
From Organometallic Chemistry to Multifunctional Nanoparticle-Based Devices for Gas Detection and Degradation of Air Pollutants
by Martin Jakoobi, Katia Fajerwerg and Myrtil L. Kahn
Proceedings 2023, 92(1), 42; https://doi.org/10.3390/proceedings2023092042 - 24 Nov 2023
Viewed by 688
Abstract
Considering the climate, societal and health-related current and emerging issues facing the world, our group, as part of the (nano-)material science community, will play a part in providing materials and technology that can tackle these issues [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
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2 pages, 166 KiB  
Abstract
Towards the Development of Sustainable Antimicrobial Surface Coatings
by Angela Ivask, Merilin Rosenberg and Vambola Kisand
Proceedings 2023, 92(1), 43; https://doi.org/10.3390/proceedings2023092043 - 24 Nov 2023
Viewed by 671
Abstract
With the increasing trend of hard-to-treat microbial infections, including multiresistant nosocomial infections, food-related outbreaks, and the rapid spread of potentially infectious microbes in the common spaces of densely populated areas, awareness of the importance of proper systemic hygiene practices has increased [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 159 KiB  
Abstract
Estimation of the Share of Total Nutrient Load from the Territory of Estonia along the Narva River to the Baltic Sea
by Alvina Reihan and Kati Roosalu
Proceedings 2023, 92(1), 44; https://doi.org/10.3390/proceedings2023092044 - 24 Nov 2023
Viewed by 544
Abstract
The annual inputs of nitrogen and phosphorus by the Narva river into the Baltic Sea are distributed between Estonia and Russia according to the catchment area shares of 33% and 67%, respectively [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 182 KiB  
Abstract
Hazard Evaluation of Novel Plasticizer, Di(2-Propylheptyl) Phthalate, to Aquatic Ecosystems
by Anastasija Petrova, Aljona Lukjanova, Irina Blinova, Heiki Vija and Margit Heinlaan
Proceedings 2023, 92(1), 45; https://doi.org/10.3390/proceedings2023092045 - 24 Nov 2023
Viewed by 773
Abstract
Plastics differ in chemical composition due to numerous chemicals (additives) used to produce plastic for specific applications [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 171 KiB  
Abstract
A Chimie Douce Route to Layered Double Hydroxides
by Denis Sokol and Aivaras Kareiva
Proceedings 2023, 92(1), 46; https://doi.org/10.3390/proceedings2023092046 - 24 Nov 2023
Viewed by 743
Abstract
Recently, layered double hydroxides (LDHs) have attracted substantial attention due to their wide range of important application areas, e [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 660 KiB  
Abstract
Synthesis of Molybdenum Oxide and Sulfide Nanoparticles at Room Temperature Using Organometallic Approach
by Martin Jakoobi, Guillaume Carnide, Laure Vendier, Christian Bijani, Anne-Françoise Mingotaud, Richard Clergereaux and Myrtil L. Kahn
Proceedings 2023, 92(1), 47; https://doi.org/10.3390/proceedings2023092047 - 24 Nov 2023
Viewed by 813
Abstract
In the early 1990s, the seminal work by B [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
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2 pages, 170 KiB  
Abstract
The Interaction between Extracellular Polymeric Substances from Diatom Cyclotella meneghiniana and Citrate-Coated Silver Nanoparticles
by Rocco Gasco, Isabelle A. Worms and Vera I. Slaveykova
Proceedings 2023, 92(1), 48; https://doi.org/10.3390/proceedings2023092048 - 24 Nov 2023
Viewed by 714
Abstract
Opposite to the significant knowledge about the toxicity of AgNPs to phytoplankton species, rather limited knowledge is available about the role of phytoplankton secretions such as extracellular polymer substances (EPS) in NPs’ fate [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 195 KiB  
Abstract
Interactions of Diatom Cyclotella meneghiniana and Citrate Coated Silver Nanoparticles
by Arin Kantarciyan, Inés Segovia-Campos and Vera I. Slaveykova
Proceedings 2023, 92(1), 49; https://doi.org/10.3390/proceedings2023092049 - 24 Nov 2023
Viewed by 666
Abstract
Silver nanoparticles (AgNPs) are extensively utilized engineered nanomaterials that inevitably find their way into the aquatic environment [1]. [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 165 KiB  
Abstract
Elemental Composition and Isotope Ratio in Pine Needles: The Impact of Arginine Phosphate-Containing Fertilizer Application in Pine-Planting Sites
by Maris Bertins, Jana Svinska, Sindija Zigure, Lauma Busa, Austra Zusevica, Karlis Dumins, Viktorija Vendina, Toms Arturs Stals, Linda Ansone-Bertina, Dagnija Lazdina, Maris Klavins and Arturs Viksna
Proceedings 2023, 92(1), 50; https://doi.org/10.3390/proceedings2023092050 - 24 Nov 2023
Viewed by 721
Abstract
Forests in Latvia are crucial, covering over half of the country’s territory and expanding continuously through afforestation and natural growth [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 160 KiB  
Abstract
Plasma Electrolytic Oxidation Synthesis of Heterostructured TiO2 for Photoanode Applications
by Ramūnas Levinas, Vidas Pakštas, Algirdas Selskis, Tomas Murauskas, Roman Viter, Aldona Jagminienė, Ina Stankevičienė and Eugenijus Norkus
Proceedings 2023, 92(1), 51; https://doi.org/10.3390/proceedings2023092051 - 24 Nov 2023
Viewed by 850
Abstract
In the renewable energy field, the conversion of solar light into electrical or chemical energy is considered essential to moving towards a truly green energy economy. Solar energy can be harnessed not just through generating electricity with photovoltaic cells but also by driving [...] Read more.
In the renewable energy field, the conversion of solar light into electrical or chemical energy is considered essential to moving towards a truly green energy economy. Solar energy can be harnessed not just through generating electricity with photovoltaic cells but also by driving photoelectrochemical (PEC) reactions such as water splitting or pollutant oxidation. In this study, TiO2 films were synthesized electrochemically through a procedure called plasma electrolytic oxidation (PEO). Under specific conditions, as the Ti substrate dissolves and the oxide film grows, electron discharges occur across the film, and this ionizes both the oxide and some amount of electrolyte that had been in contact with it. The mixture then cools, leaving a macroporous TiO2 structure. What is particularly interesting for PEC applications is that the films can be crystalline and doped after synthesis. XRD analysis revealed that a TiO2 film that had been obtained at a voltage of 200 V had an anatase crystal structure. In addition, during ionization and cooling, ions from the solution can be incorporated into the film. By adding 0.1 M Cu2SO4 into the synthesis electrolyte, we were able to incorporate Cu into the films, as proven EDX and XPS. The TiO2 and heterostructured films showed good PEC water-splitting activity and stability in alkaline media when illuminated with 365 nm LED light. It was found that the photocurrent obtained depends on the synthesis voltage and that the heterostructured films would generate ~2 times larger photocurrents. In addition, further surface functionalization (e.g., with Au) was investigated. Electron–hole recombination was evaluated using an advanced non-stationary photoelectrochemical technique—intensity-modulated photocurrent spectroscopy (IMPS). Generally, films have very little recombination and only at lower overpotentials up to ~1 V. Overall, the synthesis of oxide films through PEO may provide an efficient alternative to obtaining crystalline films via annealing, and various heterostructures can be created simply by modifying synthesis conditions. Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 158 KiB  
Abstract
Revisiting Nanotoxicology Tests—Miniaturized Approaches of Nanotoxicity Tests in Daphnids
by Anne Leung, Emma Rowan, Dimitrios Kakavas, Konstantinos Panagiotidis, Keith D. Rochfort and Konstantinos Grintzalis
Proceedings 2023, 92(1), 52; https://doi.org/10.3390/proceedings2023092052 - 27 Nov 2023
Viewed by 804
Abstract
The great increase in nanotechnology in the last 20 years has led to the alarming presence of nanomaterials in the environment as a new category of pollutants. Given the fact that legislation on nanomaterials is not concrete, the monitoring of their toxicity responses [...] Read more.
The great increase in nanotechnology in the last 20 years has led to the alarming presence of nanomaterials in the environment as a new category of pollutants. Given the fact that legislation on nanomaterials is not concrete, the monitoring of their toxicity responses remains central. Focusing on tests in aquatic environments, daphnids are commonly employed as a bioindicator species for experiments with nanomaterials. However, until now, there has not been a unified and agreed approach to nanotoxicity testing, while research among different laboratories has been performed with significantly different setups, which may affect the reproducibility of the results. In this study, daphnids were exposed to silver nanoinks and the impact of surface to volume was assessed by comparing shallow vessels such as Petri dishes with deeper exposure vessels. Furthermore, in an attempt to assess whether the tests can be performed in smaller volumes, and thus in miniaturized versions, experiments compared larger and smaller volume setups. Finally, another parameter explored was the crowding of animals in exposure, and therefore their absolute number. Mortality was affected by both surface to volume and miniaturization, and significantly with crowding, supporting the implication of the number of animals in the tests. Further investigation with molecular and phenotypic endpoints confirmed these changes. Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 169 KiB  
Abstract
Buckwheat Husks, Ash and Biomass for Sustainable Plant Fertilization and Soil Improvement
by Odeta Pocienė and Rasa Šlinkšienė
Proceedings 2023, 92(1), 53; https://doi.org/10.3390/proceedings2023092053 - 27 Nov 2023
Cited by 1 | Viewed by 639
Abstract
Nowadays, it is difficult to imagine agriculture without the use of fertilizers, because plants cannot absorb the required amount of nutrients from the soil [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
3 pages, 2728 KiB  
Abstract
Assessing Biological Effects of Contaminants in the Gulf of Finland, Northeastern Baltic Sea, Using Sediment Biotests with Amphipods (Monoporeia affinis) and Biomarker Responses in Clams (Macoma balthica)
by Ivan Kuprijanov, Natalja Kolesova, Maarja Lipp and Kari K. Lehtonen
Proceedings 2023, 92(1), 54; https://doi.org/10.3390/proceedings2023092054 - 27 Nov 2023
Viewed by 660
Abstract
The Gulf of Finland, in the northeastern Baltic Sea, is experiencing ongoing adverse effects due to human activities, leading to a decline in the quality of the marine environment [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
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2 pages, 177 KiB  
Abstract
Microplastics in Influents and Effluents of Estonian Wastewater Treatment Plants
by Ayankoya Yemi Ayankunle, Natalja Buhhalko, Aljona Lukjanova, Karin Pachel, Erki Lember and Margit Heinlaan
Proceedings 2023, 92(1), 55; https://doi.org/10.3390/proceedings2023092055 - 27 Nov 2023
Viewed by 839
Abstract
This study is the first systematic investigation of microplastics in influents and effluents of Estonian wastewater treatment plants (WWTPs) using continuous sampling filtration method and FTIR-spectroscopy [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 161 KiB  
Abstract
Designing of Sustainable Building Material Made of Non-Fired Clay with Various Biopolymers
by Yahor Trambitski, Olga Kizinievič and Viktor Kizinievič
Proceedings 2023, 92(1), 56; https://doi.org/10.3390/proceedings2023092056 - 28 Nov 2023
Viewed by 633
Abstract
This study is dedicated to the development of an environmentally friendly building material made from non-fired clay, stabilized with various biopolymers (starch, alginate, and chitosan) [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 183 KiB  
Abstract
Influence of Black Alder Bark Extractives as Integral Building Blocks on the Susceptibility to Biodegradation of Resilient Polyether Polyurethanes
by Jevgenija Ponomarenko, Matiss Pals, Oskars Bikovens and Alexandr Arshanitsa
Proceedings 2023, 92(1), 57; https://doi.org/10.3390/proceedings2023092057 - 29 Nov 2023
Viewed by 611
Abstract
In response to the increasing demand for environmentally friendly materials and the necessity of effective end-of-life management [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 179 KiB  
Abstract
Synthesis and Antibacterial Properties of Lignin-Based Quaternary Ammonium and Phosphonium Salts
by Mahendra K. Mohan, Harleen Kaur, Ella Duvanova, Merilin Rosenberg, Marcos Dahlem, Angela Ivask, Jean-Manuel Raimundo, Tiit Lukk and Yevgen Karpichev
Proceedings 2023, 92(1), 58; https://doi.org/10.3390/proceedings2023092058 - 30 Nov 2023
Viewed by 886
Abstract
Lignin, a naturally occurring aromatic polymer, possesses a range of biological functions [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 190 KiB  
Abstract
Nitrogen-Doped Reduced Graphene Oxide for Electrochemical Sensing Applications
by Justina Gaidukevič, Rūta Aukštakojytė, Mieczysław Kozłowski and Rasa Pauliukaitė
Proceedings 2023, 92(1), 59; https://doi.org/10.3390/proceedings2023092059 - 29 Nov 2023
Viewed by 703
Abstract
Graphene-based derivatives, such as graphene oxide (GO) and reduced graphene oxide (rGO), have gained significant attention in the field of electrochemical sensors [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 167 KiB  
Abstract
Chasing Pollutants Concerning Public Health: From Food to Smoke
by Urška Šunta, Polonca Trebše, Borut Poljšak and Mojca Bavcon Kralj
Proceedings 2023, 92(1), 60; https://doi.org/10.3390/proceedings2023092060 - 29 Nov 2023
Viewed by 848
Abstract
Sample preparation is the key step in determining low concentrations of pollutants from food, biological, plant, industrial, and environmental matrices [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 167 KiB  
Abstract
Novel Plasticizers Are Emerging Contaminants
by Margit Heinlaan, Heiki Vija and Irina Blinova
Proceedings 2023, 92(1), 61; https://doi.org/10.3390/proceedings2023092061 - 29 Nov 2023
Viewed by 743
Abstract
In recent years, plastic use and pollution have gained a lot of attention [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 170 KiB  
Abstract
Cost-Effective and Compact Measurement of Arsenic in Water (ARMINE Project-MITY)
by Adriana Ferancova, Maarit K. Hattuniemi, Veijo Sutinen, Sami Häkkilä, Jay Pee Oña and Jarkko P. Räty
Proceedings 2023, 92(1), 62; https://doi.org/10.3390/proceedings2023092062 - 29 Nov 2023
Viewed by 705
Abstract
The contamination of groundwater by arsenic is a serious concern due to the acute and long-term effects of arsenic toxicity on human health [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 183 KiB  
Abstract
Use of Midge Chironomus riparius Larvae in Plastic Ecotoxicity Studies and Peculiarities of Their Responses
by Alla Khosrovyan and Anne Kahru
Proceedings 2023, 92(1), 63; https://doi.org/10.3390/proceedings2023092063 - 29 Nov 2023
Viewed by 731
Abstract
Chironomus riparius, a common test organism [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 165 KiB  
Abstract
Exploring Gut Microbiota Metabolism—New Chemical Biology Tools for Metabolomics Analysis
by Vladyslav Dovhalyuk, Amanpreet Kaur, Weifeng Lin, Ioanna Tsiara, Sydney Mwasambu and Daniel Globisch
Proceedings 2023, 92(1), 64; https://doi.org/10.3390/proceedings2023092064 - 29 Nov 2023
Viewed by 806
Abstract
The impact of the gut microbiota on human physiology through their vast metabolic activities has surfaced as a remarkable scientific discovery over the past decade [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 165 KiB  
Abstract
Nanoplastic–Biomolecular Interactions
by Pu Chun Ke
Proceedings 2023, 92(1), 65; https://doi.org/10.3390/proceedings2023092065 - 29 Nov 2023
Viewed by 788
Abstract
The global-scale production of plastics has been instrumental for sustaining the modern way of life, while the accumulation of plastics in landfills, oceans, and any other environment has become a major stressor for environmental sustainability, climate, and, potentially, human health [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 159 KiB  
Abstract
The Effects of Pesticides on the Bioenergetics of Intestinal Cells
by Giuseppe Leonardo Auditano, Karolin Kullison, Tuuli Kaambre and Kersti Tepp
Proceedings 2023, 92(1), 66; https://doi.org/10.3390/proceedings2023092066 - 30 Nov 2023
Viewed by 808
Abstract
Colorectal cancer is considered the second most common type of cancer [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 167 KiB  
Abstract
Solid Solution Formation in Xanthone–Thioxanthone Binary System: Experimental Investigation
by Kristaps Saršūns, Agris Bērziņš and Toms Rekis
Proceedings 2023, 92(1), 67; https://doi.org/10.3390/proceedings2023092067 - 30 Nov 2023
Viewed by 874
Abstract
Solid solutions are crystalline phases consisting of at least two components in a freely variable composition within certain limits [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 179 KiB  
Abstract
Machine Learning Tools Can Pinpoint High-Risk Water Pollutants
by Helen Sepman, Pilleriin Peets, Lisa Jonsson, Louise Malm, Malte Posselt, Matthew MacLeod, Jonathan Martin, Magnus Breitholtz, Michael McLachlan and Anneli Kruve
Proceedings 2023, 92(1), 68; https://doi.org/10.3390/proceedings2023092068 - 30 Nov 2023
Viewed by 1011
Abstract
Liquid chromatography–high-resolution mass spectrometry (LC/HRMS) is a powerful tool for detecting chemicals that are present in low concentrations [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 162 KiB  
Abstract
The Study of the Uptake of Chromium, Zinc, Cadmium and Lead from Spiked Nutrient Solution in Tomato Plants
by Katarina Marković, Radmila Milačič, Ester Heath, Nina Kacjan Maršić, Marina Pintar and Janez Ščančar
Proceedings 2023, 92(1), 69; https://doi.org/10.3390/proceedings2023092069 - 1 Dec 2023
Viewed by 954
Abstract
The reuse of treated wastewater for irrigation can preserve freshwater resources [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
3 pages, 480 KiB  
Abstract
Sampling, Detection and Uncertainty in Environmental Analysis—Challenges and Solutions
by Stephen L. R. Ellison
Proceedings 2023, 92(1), 70; https://doi.org/10.3390/proceedings2023092070 - 1 Dec 2023
Viewed by 935
Abstract
Analytical measurements are increasingly vital to inform our understanding of our changing global environment and to support the regulation of human activity that affects the environment [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
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2 pages, 167 KiB  
Abstract
Evaluation of Environmental Hazards of Nanocomposite Use for Wastewater Treatment
by Villem Aruoja, Giuliana Impellizzeri, Sabrina Carola Carroccio, Mariliis Sihtmäe, Irina Blinova and Anne Kahru
Proceedings 2023, 92(1), 71; https://doi.org/10.3390/proceedings2023092071 - 5 Dec 2023
Viewed by 790
Abstract
Antibiotics are not completely metabolized nor degraded in traditional wastewater treatment, leaving a large proportion of them in the wastewater [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 194 KiB  
Abstract
Silver Nanoparticles May Promote Antibiotic Resistance Gene Persistence in Wastewater Treatment Systems
by Marika Truu, Teele Ligi, Hiie Nõlvak, Angela Peeb, Kertu Tiirik, Arun Devarajan, Margit Kõiv-Vainik, Kuno Kasak, Kaja Kasemets and Jaak Truu
Proceedings 2023, 92(1), 72; https://doi.org/10.3390/proceedings2023092072 - 5 Dec 2023
Viewed by 896
Abstract
Silver nanoparticles (AgNPs) rank as some of the most commonly utilized engineered nanomaterials and are known to enter wastewater collection and treatment systems through their creation, application, and disposal processes [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 155 KiB  
Abstract
Role of Plant Volatiles in Atmospheric Processes under Current and Future Climates
by Ülo Niinemets
Proceedings 2023, 92(1), 73; https://doi.org/10.3390/proceedings2023092073 - 5 Dec 2023
Viewed by 855
Abstract
Several plant species emit different volatile organic compounds constitutively under typical physiological conditions, and all plant species can be elicited to emit volatiles under stress conditions when physiological activity is curbed. Plant emissions constitute the biggest global source of reactive volatile organic compounds [...] Read more.
Several plant species emit different volatile organic compounds constitutively under typical physiological conditions, and all plant species can be elicited to emit volatiles under stress conditions when physiological activity is curbed. Plant emissions constitute the biggest global source of reactive volatile organic compounds in the atmosphere. These volatiles play major biological roles in plant–plant interactions and in plant interactions with other organisms. In addition, plant-emitted volatiles often dominate the volatile-driven large-scale biosphere–atmosphere processes. In particular, plant volatiles participate in ozone- and secondary organic aerosol (SOA)-forming reactions and in cloud formation. Both enhanced SOA and cloud formation contribute to the cooling of the Earth’s surface, implying that plants can alter their own life environment. At the global scale, amelioration of vegetation growing conditions via volatile emissions can reduce the rate of global environmental change, but there are currently major uncertainties in understanding how plant emissions change in future climates and the quantitative impact of plant emissions on future climate change. Climate change is a complex phenomenon that entails alterations in a series of environmental factors. For plants, climate change is expected to enhance the severity and duration of stress periods when plant physiological activity is strongly reduced. This includes both the enhancement of abiotic stresses such as rising temperatures and more severe drought episodes in many parts of the globe and more devastating biotic stresses such as frequent outbreaks of herbivore and pathogen attacks. These changes in the frequency and duration of stress episodes can strongly impact volatile emissions. Stress typically reduces the emissions of constitutively released plant volatiles and elicits emissions of specific volatiles in a stress-severity-dependent manner. Thus, the plant-dependent feedback on global change is expected to become stronger in more stress-prone climates. Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
1 pages, 142 KiB  
Abstract
Measurement Quality in Analysis—Guidelines and Software Tools
by Bertil Magnusson
Proceedings 2023, 92(1), 74; https://doi.org/10.3390/proceedings2023092074 - 5 Dec 2023
Viewed by 849
Abstract
Measurement quality is about fulfilling analytical requirements, which should be based on the intended use of the results. Within the European Union, environmental requirements can be set in a directive based on the maximum allowable concentration of a substance in air, soil or [...] Read more.
Measurement quality is about fulfilling analytical requirements, which should be based on the intended use of the results. Within the European Union, environmental requirements can be set in a directive based on the maximum allowable concentration of a substance in air, soil or water, e.g., an Environmental Quality Standard (EQS) or an Emission Limit Value (EVS); and the requirements on measurement quality, e.g., the limit of quantification (LOQ), within-laboratory reproducibility (sRw) or measurement uncertainty (MU). This presentation is about publicly available guidelines that can help the analytical chemist working in the laboratory by implementing a specific method to (1) set up internal quality control over the whole concentration range based on the requirements through the use of target control limits, (2) perform ongoing internal quality control based on only two rules, (3) plan method validation, and (4) estimate the MU based on quality control and validation data. Normally for instrumental methods, the MU is estimated as a relative uncertainty at higher concentrations and as an absolute uncertainty at lower concentrations close to the LOQ. For quality control and MU estimation, free open source software will be presented. Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 162 KiB  
Abstract
Anthropogenic Activities and Microbial Populations: War, Peace or Adaptation?
by Julija Armalytė and Eglė Lastauskienė
Proceedings 2023, 92(1), 75; https://doi.org/10.3390/proceedings2023092075 - 5 Dec 2023
Viewed by 807
Abstract
Aquaculture is one of the fastest-growing food sectors in Central, North, and Eastern Europe [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 198 KiB  
Abstract
Sustainable Chemistry through Catalysis and Process Intensification
by Henrik Grénman
Proceedings 2023, 92(1), 76; https://doi.org/10.3390/proceedings2023092076 - 13 Dec 2023
Viewed by 839
Abstract
The shift away from fossil resources is revolutionizing our industrial carbon sources, and the developments in legislation demand increased overall efficiency in processes and emission abatement [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 171 KiB  
Abstract
Detection of Mycotoxins and Pyrrolizidine Alkaloids in a Wide Variety of Nutritional Supplements Using the Multianalyte HPLC-MS/MS Method
by Zane Berzina and Vadims Bartkevics
Proceedings 2023, 92(1), 77; https://doi.org/10.3390/proceedings2023092077 - 14 Dec 2023
Viewed by 915
Abstract
Plant-based nutritional supplements are considered a natural means of enriching everyday diets, but they are also a source of various food contaminants, such as mycotoxins [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 139 KiB  
Abstract
Microplastics and Associated Microorganisms in the Sea Sediment of the Sentina Regional Natural Reserve (Central Adriatic Sea, Italy)
by Angela Piersanti, Anna-Rita Attili, Monika Mortimer, Signe Vahur, Francesco Alessandro Palermo, Paolo Cocci and Cristina Miceli
Proceedings 2023, 92(1), 78; https://doi.org/10.3390/proceedings2023092078 - 28 Dec 2023
Viewed by 896
Abstract
(1) Background: The large dispersion of microplastics (MPs) in the marine environment has effects on the health of living organisms [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
1 pages, 146 KiB  
Abstract
A Brief Journey around the World of Heteracyclo[n]phanes: Synthesis and CO2 Adsorption
by Jean-Manuel Raimundo
Proceedings 2023, 92(1), 79; https://doi.org/10.3390/proceedings2023092079 - 3 Jan 2024
Viewed by 655
Abstract
The optoelectronic properties of π-conjugated chromophores have been widely used since the discovery of the conducting properties of synthetic organic polymers in the late 1970s [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
1 pages, 126 KiB  
Abstract
The Use of Biomarkers in Monitoring and Assessment of Chemical Contamination in the Baltic Sea
by Kari K. Lehtonen
Proceedings 2023, 92(1), 80; https://doi.org/10.3390/proceedings2023092080 - 19 Jan 2024
Viewed by 602
Abstract
Chemical pollution affects the health of marine biota, key functions of the ecosystem, and endangers its biodiversity. The current environmental monitoring and assessment approach is based on chemical and ecological measurements, while the linkage between them, biological effects at the individual level, has [...] Read more.
Chemical pollution affects the health of marine biota, key functions of the ecosystem, and endangers its biodiversity. The current environmental monitoring and assessment approach is based on chemical and ecological measurements, while the linkage between them, biological effects at the individual level, has been largely neglected. It is currently well acknowledged that the monitoring of chemical concentrations alone is not sufficient to protect populations; it considers only a tiny number of substances, while myriad others are left unnoticed. In addition, the hazards related to contaminant mixtures remain undetected. Biological effects of contaminants can be detected and measured at different levels of biological organization, i.e., from the molecular/biochemical level up to changes in populations and communities. In Baltic Sea monitoring programs, the few observations on the effects of contaminants have, for decades, mostly been made at only the higher biological organization levels, applying reproduction success parameters in top predators such as raptor birds and seals as indicators. However, recording early warning signals of contaminant exposure and effects on the health of individuals at lower biological levels makes it possible to anticipate and prevent damage at the higher levels. Moreover, it is also crucial to monitor effects at lower levels of the marine food web. The so-called biomarkers focus on changes in various biological functions and include parameters related to the detoxification of xenobiotics, oxidative stress, neurotoxicity, geno- and cytotoxicity and reproductive disorders, among others. Research on biomarkers aiming at improving their use in monitoring and assessing the contamination status of marine areas has been intensive during recent decades, although the implementation of the methods to monitoring programmes has been slow. Here, the current state of biological effects monitoring using biomarkers, as well as selected case studies in the Baltic Sea, are presented, followed by recommendations on their application in this sea area. Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 130 KiB  
Abstract
Pulsed Corona Discharge Plasma Combined with Photocatalytic Oxidation Technology for the Degradation of Volatile Organic Compounds in Air
by Juri Bolobajev, Kristen Altof, Marina Krichevskaya and Sergei Preis
Proceedings 2023, 92(1), 81; https://doi.org/10.3390/proceedings2023092081 - 24 Jan 2024
Viewed by 575
Abstract
The anthropogenic impact on the environment has long been known to negatively affect the quality of air. Volatile organic compounds (VOCs) are widely used in domestic and industrial applications, generally as solvents. They are mobile in both gaseous and aqueous phases, and thus [...] Read more.
The anthropogenic impact on the environment has long been known to negatively affect the quality of air. Volatile organic compounds (VOCs) are widely used in domestic and industrial applications, generally as solvents. They are mobile in both gaseous and aqueous phases, and thus their spread in environment could have massive effect with dramatically negative consequences. Pulsed corona discharge (PCD) and photocatalytic oxidation (PCO) are considered as efficient and eco-friendly methods for the energy-efficient abatement of gaseous hazardous pollutants. One of the main problems of PCD application in air treatment, however, is residual ozone, a side product of air ionization considered as secondary air pollution. Photocatalytic processes are known to degrade ozone extending simultaneously the photocatalyst lifetime. Thus, combining PCD and PCO in a two-step treatment system could solve the problem of the presence of residual ozone and complement each other’s strengths. In this study, experiments were conducted in separate systems, i.e. photocatalysis and plasma, making a prerequisite for the progress in the combined PCD/PCO applications. A prototype PCO reactor was built and tested with ozone and 2-methoxyethanol (2ME) in combinations. 2ME was chosen as a hazardous model VOC used in industry in solvents and paints. For the PCD experiments xylene was tested. Being refractory air pollutant, extensively studied for its removal, xylene provides a basis for the comparison of its abatement methods. The PCD treatment showed unequalled energy efficiencies in gaseous xylene oxidation. With respect to PCO experiments, the degradation of 2ME and ozone was 40% and 95%, respectively. High ozone degradation performed by PCO confirms the expediency of proposed air cleaning combination. Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 141 KiB  
Abstract
The Impact of Microplastics on Soil Invertebrates
by Anita Jemec Kokalj
Proceedings 2023, 92(1), 82; https://doi.org/10.3390/proceedings2023092082 - 24 Jan 2024
Viewed by 916
Abstract
As a result of plastic pollution and intentional use of plastics in agriculture, small plastic particles called microplastics (<1 mm) are commonly found in soils [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 120 KiB  
Abstract
Non-Formal Ecological Education: Innovative Methods Tested in Lake Peipsi Communities
by Margit Säre
Proceedings 2023, 92(1), 83; https://doi.org/10.3390/proceedings2023092083 - 24 Jan 2024
Viewed by 550
Abstract
Our continent faces serious problems in areas such as biodiversity loss, limited natural resources, the impacts of climate change, etc [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 138 KiB  
Abstract
The Optimization and Upscaling of Non-Thermal Atmospheric Plasma for Food Processing
by Yijiao Yao, Uta Schnabel, Jörg Ehlbeck and Kimon-Andreas Karatzas
Proceedings 2023, 92(1), 84; https://doi.org/10.3390/proceedings2023092084 - 25 Jan 2024
Viewed by 688
Abstract
Non-thermal plasma technology is recognized for its strong antimicrobial efficacy on food and food production environment-associated microorganisms and its ability to enhance food safety and food shelf-life [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 158 KiB  
Abstract
Selective Capture of Small Environmental Pollutants by Cyclohexanohemicucurbit[n]urils
by Tatsiana Jarg, Ketren-Marlein Lootus, Sandra Kaabel and Riina Aav
Proceedings 2023, 92(1), 85; https://doi.org/10.3390/proceedings2023092085 - 29 Jan 2024
Viewed by 493
Abstract
Persistent organic pollutants that occur in different environmental matrices create a need for their sensing, removal and remediation [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
1 pages, 127 KiB  
Abstract
Wood Chemistry Perspectives at TalTech
by Tiit Lukk
Proceedings 2023, 92(1), 86; https://doi.org/10.3390/proceedings2023092086 - 29 Jan 2024
Viewed by 582
Abstract
Despite being the most abundant renewable resource in Estonia, wood has not been fully utilized for its potential value. To fully harness its potential, wood needs to be processed to its core components, such as fibers, wood sugars, and lignin, using chemical, thermochemical, [...] Read more.
Despite being the most abundant renewable resource in Estonia, wood has not been fully utilized for its potential value. To fully harness its potential, wood needs to be processed to its core components, such as fibers, wood sugars, and lignin, using chemical, thermochemical, or enzymatic methods. Researchers at TalTech are working on developing a comprehensive value chain for wood valorization, encompassing the production of food additives, thermoplastics, coating materials, and fine chemicals. Traditionally, lignin, a byproduct of the wood fractionation, was burned for energy. However, TalTech researchers are now using lignin to create novel thermoplastics, catalytic materials, and fine chemicals via fermentation processes. Here we show that the conversion of lignin into novel functional materials can be tailored by selecting appropriate extraction methods and source biomass. For instance, organosolv lignin extracted from barley straw exhibits the largest BET active surface area for lignin-based aerogels compared to those produced from softwood or hardwood organosolv lignins. Additionally, we showcase the potential of actinobacterial enzymes to detoxify phenol-containing wood sugar solutions, enabling their utilization in fermentation processes involving a wider array of microbial species. Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
2 pages, 156 KiB  
Abstract
Hemicucurbituril-Porphyrin Supramolecular Systems for Pollutant Sensing and Remediation
by Riina Aav, Victor Borovkov, Dzmitry Kananovich, Nele Konrad, Tatsiana Jarg, Mari-Liis Brük and Marko Šakarašvili
Proceedings 2023, 92(1), 87; https://doi.org/10.3390/proceedings2023092087 - 30 Jan 2024
Viewed by 514
Abstract
Hemicucurbiturils are members of the single-bridged cucurbituril family, formed through templated synthesis in a single step [...] Full article
(This article belongs to the Proceedings of International Conference EcoBalt 2023 "Chemicals & Environment")
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