Establishment and verification of anthropogenic speciated VOCs emission inventory of Central China  

作　　者：Xuan Lu Dong Zhang Lanxin Wang Shefang Wang Xinran Zhang Yali Liu Keying Chen Xinshuai Song Shasha Yin Ruiqin Zhang Shanshan Wang Minghao Yuan 

机构地区：[1]College of Chemistry,Zhengzhou University,Zhengzhou 450001,China [2]Research Institute of Environmental Sciences,Zhengzhou University,Zhengzhou 450001,China [3]School of Ecology and Environment,Zhengzhou University,Zhengzhou 450001,China [4]Zhengzhou Ecological Environment Monitoring Center of Henan Province,Zhengzhou 450000,China

出　　处：《Journal of Environmental Sciences》2025年第3期406-418,共13页环境科学学报(英文版)

基　　金：supported by Zhengzhou PM_(2.5)and O_(3)Collaborative Control and Monitoring Project(No.20220347A);the 2020 National Supercomputing Zhengzhou Center Innovation Ecosystem Construction Technology Project(No.201400210700).

摘　　要：Improving the accuracy of anthropogenic volatile organic compounds(VOCs)emission inventory is crucial for reducing atmospheric pollution and formulating control policy of air pollution.In this study,an anthropogenic speciated VOCs emission inventory was established for Central China represented by Henan Province at a 3 km×3 km spatial resolution based on the emission factormethod.The 2019 VOCs emission in Henan Provincewas 1003.5 Gg,while industrial process source(33.7%)was the highest emission source,Zhengzhou(17.9%)was the city with highest emission and April and August were the months with the more emissions.High VOCs emission regions were concentrated in downtown areas and industrial parks.Alkanes and aromatic hydrocarbons were the main VOCs contribution groups.The species composition,source contribution and spatial distribution were verified and evaluated through tracer ratio method(TR),Positive Matrix Factorization Model(PMF)and remote sensing inversion(RSI).Results show that both the emission results by emission inventory(EI)(15.7 Gg)and by TRmethod(13.6 Gg)and source contribution by EI and PMF are familiar.The spatial distribution of HCHO primary emission based on RSI is basically consistent with that of HCHO emission based on EI with a R-value of 0.73.The verification results show that the VOCs emission inventory and speciated emission inventory established in this study are relatively reliable.

关 键 词：VOCs verification Species composition Tracer ratio PMF Remote sensing inversion 

分 类 号：X513[环境科学与工程—环境工程]