A5017051741- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- Atmospheric aerosols and clouds
- Atmospheric Ozone and Climate
University of Science and Technology of China
2022-2025
Abstract Size‐resolved organic functional group (OFG) concentrations in aerosol particles were measured during January−February 2019 Hefei, a major urban city eastern China. Alkane, carboxylic acid, and hydroxyl groups the main components of (OA), contributing 35.0%, 22.5%, 21.8%, respectively. The mass size distributions OFGs strongly depended on ambient relative humidity (RH). Specifically, OFG 50% higher high‐RH periods than low‐RH periods. peak distribution was 0.56–1 μm periods, while...
Abstract Religious burning (RB) has been identified as a major source of atmospheric aerosols on the Qinghai‐Tibet Plateau. However, there is limited understanding detailed chemical composition, size distribution, and optical properties RB in this region. To characterize these important aerosol properties, ambient PM 2.5 resolved from emissions Lhasa were collected during summer 2019. Organic functional group (OFG) inorganic ion composition was measured using Fourier transform infrared...
An intensive field campaign was carried out in Hefei, a city the Yangtze River Delta eastern China, summer of 2020 to examine composition and sources organic aerosols (OA). Time-resolved filter samples were collected quantified obtain concentrations for functional groups (OFGs), including alkane, hydroxyl, carboxylic acid, non-acid carbonyl, amine, aromatic using Fourier transform infrared (FTIR). Inorganic aerosol components gas-phase pollutants also measured facilitate data analysis. The...