Characteristics of VOCs Emissions and Ozone Formation Potential for Typical Chemicals Industry Sources in China

• Published in: Huanjing kexue Vol. 45; no. 5; p. 2613
• Main Authors: Wu, Ting, Cui, Huan-Wen, Xiao, Xian-de, Zhai, Zeng-Xiu, Han, Meng
• Format: Journal Article
• Language: Chinese
• Published: China 08.05.2024
• Subjects: chemical industry soureces; volatile organic compounds（VOCs）; ozone formation potential （OFP）; machine learning; ozone（O3）
• ISSN: 0250-3301
• DOI: 10.13227/j.hjkx.202304110

This study selected five typical types of chemical industry volatile organic compounds (VOCs) emission characteristics in China for analysis. The results from 70 source samples showed that alkanes were the dominant VOCs category from synthetic material industry sources, petrochemical industry sources, and coating industry sources (accounting for 43%, 63%, and 68%, respectively); olefins were the main VOCs category from the daily supplies chemical industry (46%); and halogenated hydrocarbons were the dominate VOCs category from specialty chemicals industry account source emissions (43%). Additionally, the machine learning method was applied in this study to analyze the marker components of the above industries. The results showed that decane and tetrahydrofuran were the source markers of the synthetic material industry; n-butanol and toluene were the markers of the daily supplies industry source; 1,2,3-trimethylbenzene and 1,3,5-trimethylbenzene were the markers of the petrochemical industry source; propylene