Spatial heterogeneity of volatile organic compound pollution in a typical industrial park based on multi-point online monitoring: Pollution characteristics, health risks, and priority-controlled species

被引:0
作者
Han, Mengjuan [1 ,2 ]
Ren, Ge [1 ,2 ]
Zhao, Xinna [3 ]
Zhang, Xiaodong [2 ]
Lin, Hong [1 ,2 ]
Liu, Dan [3 ]
Wang, Lei [4 ]
机构
[1] Natl Inst Metrol, Div Thermophys Metrol, Beijing 100029, Peoples R China
[2] Zhengzhou Inst Metrol, Zhengzhou 450001, Peoples R China
[3] Henan Ecol Environm Monitoring & Safety Ctr, Henan Key Lab Environm Monitoring Technol, Zhengzhou 450008, Peoples R China
[4] Kaifeng Ecol Environm Monitoring Ctr, Kaifeng 450003, Peoples R China
关键词
Volatile organic compounds; Industrial park; Environmental impact; Health risk; Priority-controlled species; YANGTZE-RIVER DELTA; COMPOUNDS VOCS; URBAN AREA; OZONE; HYDROCARBONS; EMISSIONS; PROFILES; SUMMER; CHINA; HAZE;
D O I
10.1016/j.atmosenv.2024.120852
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Emissions from industrial parks are crucial sources of ambient volatile organic compound (VOC) pollution, characterized by high concentrations, complex compositions, dispersed emission sources, and uneven spatial distribution. To better understand and address this issue, it is crucial to analyze the spatial differences in VOC pollution and associated health risks through multi-point monitoring. In this study, we established four online monitoring sites in a typical industrial park in Kaifeng, China. We monitored 115 VOC species and found significant differences in the concentration and chemical composition of total VOCs (TVOCs) among the four sites. Two sites were primarily composed of halohydrocarbons (49.80% and 41.21%), while the other two sites had a higher proportion of aromatics (54.78% and 39.03%). Acetaldehyde was the main contributor to ozone formation potential (OFP) at one site, while toluene was associated with the other three sites. The site with the highest VOC concentration and OFP also showed the highest secondary organic aerosol formation potential (SOAP). In terms of health risk assessment, acrolein posed a non-carcinogenic risk at all sites, but there were disparities in the carcinogenic risk among the four sites. 1,2-Dichloroethane at one site exceeded the definite risk limit, while 1,2-dibromoethane and chloroform were considered probable risk species at another site. Considering both the environmental impact and health risk, we used entropy-weighting to calculate a comprehensive control index (CCI). This index identified 1,2-dichloroethane as the Level I controlled pollutant species at two sites, and toluene at the other two sites. This study highlights the spatial heterogeneity in VOC pollution and health risks within the industrial park, providing valuable insights for targeted pollution control strategies.
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页数:12
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