Emission of Intermediate Volatile Organic Compounds from Animal Dung and Coal Combustion and Its Contribution to Secondary Organic Aerosol Formation in Qinghai-Tibet Plateau, China

• DOI: 10.1021/acs.est.4c02618
• Publication Date: 2024-06-12T14:16:21Z
• Authors: Kun He; Zhenxing Shen; Leiming Zhang; Xin Wang; Bin Zhang; Jian Sun; Hongmei Xu; Steven Sai Hang Ho; Jun-ji Cao
• Keywords: Aerosols; Volatile Organic Compounds; Air Pollutants; China; Coal; Animals; Tibet; Environmental Monitoring

Intermediate volatility organic compounds (IVOCs) are important precursors to secondary aerosols (SOAs), but they often neglected in studies concerning SOA formation. This study addresses the significant issue of IVOCs emissions Qinghai-Tibetan plateau (QTP), where solid fuels extensively used under incomplete combustion conditions for residential heating and cooking. Our field measurement data revealed an emission factor total (EFIVOCs) ranging from 1.56 ± 0.03 9.97 3.22 g/kg various scenarios QTP. The markedly higher EFIVOCs QTP than plain regions can be attributed oxygen-deficient conditions. were dominated by gaseous phase emissions, primary contributors particulate unresolved complex mixture alkanes, respectively. Total during nonheating seasons estimated 31.7 13.8 6.87 0.45 Gg, production resulting combined VOCs is nearly five times that derived alone. Results this emphasized pivotal role air pollution provided a foundation compiling inventories related fuel developing prevention strategies.