Advancing Insights into Atmospheric Aerosols: Understanding Aerosol Formation, Characteristics, Sources and Mitigating Strategies

A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Aerosols".

Deadline for manuscript submissions: closed (28 October 2024) | Viewed by 734

Special Issue Editors

Hangzhou International Innovation Institute, Beihang University, Hangzhou 311115, China
Interests: aerosols; chemical characteristics; receptor model; sources apportionment; aerosol acidity; formation mechanism
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Guest Editor
School of Geography, Earth & Environmental Sciences, University of Birmingham, Birmingham B15 2TT, UK
Interests: aerosol chemistry; source apportionment; analytical developments; secondary organic aerosols
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In response to the escalating concerns surrounding air pollution and its detrimental impacts on human health and the global climate, this Special Issue of Atmosphere titled "Advancing Insights into Atmospheric Aerosols: Understanding Aerosol Formation, Characteristics, Sources and Mitigating Strategies" aims to catalyze discussions on recent advancements in the understanding of atmospheric aerosols and to provide a comprehensive platform for researchers to share their recent work. This Special Issue encourages researchers to delve into various aspects of aerosol science, including the formation mechanisms of aerosols, their physical and chemical properties, sources, etc. Authors are encouraged to discuss the implications of their findings for future aerosol research, air quality improvement, and potential abatement strategies. Through collaborative efforts, this Special Issue aims to advance our understanding of atmospheric aerosols and inform strategies for mitigating their adverse impacts on human health and the environment.

Topics of interest for this Special Issue include, but are not limited to, the following:

  • Investigation of ambient aerosols’ physical and chemical properties;
  • Aerosol formation mechanism;
  • Aerosol source apportionment;
  • Aerosol toxicity;
  • Strategies for mitigating aerosol pollution.

Dr. Jingsha Xu
Dr. Deepchandra Srivastava
Guest Editors

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Keywords

  • particulate matters
  • chemical compositions
  • emission characteristics
  • organic tracers
  • source apportionment
  • air pollution health impacts

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Published Papers (1 paper)

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Research

26 pages, 20396 KiB  
Article
Spatiotemporal Variations and Driving Factor Analysis of Aerosol Optical Depth in Terrestrial Ecosystems in Northern Xinjiang from 2001 to 2023
by Zequn Xiang, Hongqi Wu, Yanmin Fan, Yu Dang, Yanan Bi, Jiahao Zhao, Wenyue Song, Tianyuan Feng and Xu Zhang
Atmosphere 2024, 15(11), 1302; https://doi.org/10.3390/atmos15111302 - 29 Oct 2024
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Abstract
Investigating the spatiotemporal variations in Aerosol Optical Depth (AOD) in terrestrial ecosystems and their driving factors is significant for deepening our understanding of the relationship between ecosystem types and aerosols. This study utilized 1 km resolution AOD data from the Moderate Resolution Imaging [...] Read more.
Investigating the spatiotemporal variations in Aerosol Optical Depth (AOD) in terrestrial ecosystems and their driving factors is significant for deepening our understanding of the relationship between ecosystem types and aerosols. This study utilized 1 km resolution AOD data from the Moderate Resolution Imaging Spectroradiometer (MODIS) and Mann–Kendall (M-K) trend test to analyze the spatiotemporal variations in AOD in seven ecosystems in Northern Xinjiang from 2001 to 2023. The geographic detector model was employed to investigate the effects of driving factors, including gross domestic product, population density, specific humidity, precipitation, temperature, wind speed, soil moisture, and elevation, on the distribution of AOD in the ecosystems. The results indicate that over the past 23 years, wetlands had the highest annual average AOD values, followed by settlements, farmlands, deserts, grasslands, others, and forests, respectively. Furthermore, the AOD values decrease with increasing ecosystem elevation. The annual mean of AOD in Northern Xinjiang generally shows a fluctuating upward trend. The M-K test shows that the proportion of area with an increasing trend in AOD in the settlement ecosystems is the highest (92.17%), while the proportion of area with a decreasing trend in the forest ecosystem is the highest (21.78%). On a seasonal scale, grassland, settlement, farmland, forest, and wetland ecosystems exhibit peak values in spring and winter, whereas desert and other ecosystems only show peaks in spring. Different types of ecosystems show different sensitivities to driving factors. Grassland and forest ecosystems are primarily influenced by temperature and altitude, while desert and settlement ecosystems are most affected by wind speed and humidity. Farmlands are mainly influenced by wind speed and altitude, wetlands are significantly impacted by population density and humidity, and other ecosystems are predominantly affected by humidity and altitude. This paper serves as a reference for targeted air pollution prevention and regional ecological environmental protection. Full article
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