Advances in Atmospheric Aqueous-Phase Chemistry

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

Deadline for manuscript submissions: closed (20 April 2024) | Viewed by 940

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Guest Editor
College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
Interests: secondary organic aerosol; aqueous phase formation; interfacial chemistry; in situ mass techniques
College of Geography and Environment, Shandong Normal University, Jinan 250358, China
Interests: atmospheric chemistry laboratory simulation; secondary aerosol formation; air quality
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Special Issue Information

Dear Colleagues,

Secondary inorganic and organic aerosol formation in the aqueous phase is of primary importance in atmospheric chemistry. Inorganic aerosols have long been investigated via field measurement, laboratory experiments and modelling simulation. Conversely, organic aerosol formation via the aqueous phase, e.g., cloud, fog, or aerosol liquid water, is not as well understood. State-of-the-art models still fail to capture the observed high PM2.5 concentrations, indicating the missing key chemical understanding with regard to aqueous SOA formation. Many investigations have been conducted in laboratory conditions to explore the aqSOA formation mechanism due to the limit of technology in field measurement. To minimize the gap between measurement and simulation, we are in urgent need of a better understanding of aqSOA chemistry. Thus, we are launching this Special Issue of Atmosphere, entitled “Advances in Atmospheric Aqueous-Phase Chemistry”, to provide new insights into aqSOA chemistry. Topics of interest for this Special Issue include, but are not limited to:

  • Physicochemical properties of aqSOA, e.g., kinetics, chemical compositions, light properties, phase changes, viscosity, etc.;
  • Heterogeneous formation mechanisms of aqSOA, e.g., fog, cloud, aerosol liquid water, etc.;
  • Factors might affect the aqueous SOA formation, e.g., pH, RH, temperature, aerosol phase states, etc.;
  • Contribution of aqSOA formation to PM5;
  • Heterogeneous formation of inorganic aerosol under highly polluted conditions.

Dr. Fei Zhang
Dr. Xiao Sui
Guest Editors

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • aqueous-phase chemistry
  • secondary organic aerosol
  • aerosol liquid water
  • physicochemical properties
  • formation mechanisms

Published Papers (1 paper)

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Research

15 pages, 6324 KiB  
Article
Characteristics and Source Apportionment of Volatile Organic Compounds in an Industrial Area at the Zhejiang–Shanghai Boundary, China
by Xiang Cao, Jialin Yi, Yuewu Li, Mengfei Zhao, Yusen Duan, Fei Zhang and Lian Duan
Atmosphere 2024, 15(2), 237; https://doi.org/10.3390/atmos15020237 - 18 Feb 2024
Viewed by 743
Abstract
As “fuel” for atmospheric photochemical reactions, volatile organic compounds (VOCs) play a key role in the secondary generation of ozone (O3) and fine particulate matter (PM2.5, an aerodynamic diameter ≤ 2.5 μm). To determine the characteristics of VOCs in [...] Read more.
As “fuel” for atmospheric photochemical reactions, volatile organic compounds (VOCs) play a key role in the secondary generation of ozone (O3) and fine particulate matter (PM2.5, an aerodynamic diameter ≤ 2.5 μm). To determine the characteristics of VOCs in a high-level ozone period, comprehensive monitoring of O3 and its precursors (VOCs and NOx) was continuously conducted in an industrial area in Shanghai from 18 August to 30 September 2021. During the observation period, the average concentration of VOCs was 47.33 ppb, and alkanes (19.64 ppb) accounted for the highest proportion of TVOCs, followed by oxygenated volatile organic compounds (OVOCs) (13.61 ppb), alkenes (6.92 ppb), aromatics (4.65 ppb), halogenated hydrocarbons (1.60 ppb), and alkynes (0.91 ppb). Alkenes were the predominant components that contributed to the ozone formation potential (OFP), while aromatics such as xylene, toluene, and ethylbenzene contributed the most to the secondary organic aerosol production potential (SOAFP). During the study period, O3, NOx, and VOCs showed significant diurnal variations. Industrial processes were the main source of VOCs, and the second largest source of VOCs was vehicle exhaust. While the largest contribution to OFP was from vehicle exhaust, the second largest contribution was from liquid petroleum gas (LPG). High potential source contribution function (PSCF) values were observed in western and southeastern areas near the sampling sites. The results of a health risk evaluation showed that the Hazard Index was less than 1 and there was no non-carcinogenic risk, but 1,3-butadiene, benzene, chloroform, 1,2-dibromoethane, and carbon tetrachloride pose a potential carcinogenic risk to the population. Full article
(This article belongs to the Special Issue Advances in Atmospheric Aqueous-Phase Chemistry)
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