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The emission inventory anthropogenic source VOCs species in 2021 in Nanjing |
SONG Tong-ai1, GAO Peng-jie1, GUAN Lu1, ZHANG Jia-ying1, HU Jian-lin2, YU Xing-na1 |
1. Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing 210044, China; 2. Jiangsu Key Laboratory of High Technology for Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China |
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Abstract Based on emission factor method, the Volatile Organic Compounds (VOCs) emission inventory of Nanjing was established in 2021 using the activity data of various VOCs emission sources, emission factors and source profiles of VOCs. VOCs emissions for each source and different VOCs source profiles in Nanjing were analyzed. The total amount of VOCs emissions in Nanjing in 2021 was about 302.85kt. Industrial process sources were the major source of total VOCs emissions accounting for 60.41% (182.94kt), followed by on-road mobile sources (19.46%). The least emission contribution was from off-road mobile sources (0.40%). The highest emission for VOCs species inventory come from alkanes (109.06kt), followed by halogenated hydrocarbon (75.08kt) and aromatic hydrocarbon emissions (50.72kt). The top ten species contributing to emissions were vinyl chloride, ethane, propane, trichloroethylene, 1,2-dichloroethane, p-xylene, n-butane, ethylbenzene, other alkanes and ethylene, respectively. The emissions of top ten species accounted for 63.96% of the total emissions, which mainly from synthetic fiber monomer manufacturing and crude oil processing.
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Received: 31 July 2023
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Corresponding Authors:
于兴娜,教授,xnyu@nuist.edu.cn
E-mail: xnyu@nuist.edu.cn
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