重庆工商大学学报（自然科学版）2024，Vol.41Issue(1)：60-67,8.DOI:10.16055/j.issn.1672-058X.2024.0001.008
某工业园区大气VOCs污染特征及健康风险评价
Characteristics and Health Risk Assessment of Air VOCs Pollution in an Industrial Park
摘要
Abstract
Objective Industrial parks emit a large amount of volatile organic compounds(VOCs),which leads to atmospheric pollution and human health damage.In this paper,typical industrial parks in the upper reaches of the Yangtze River were used as the study area to investigate the characteristics of VOCs pollution in typical industrial parks and the impact of VOCs pollution on human health risks.Methods Suma canisters were used to carry out continuous monitoring of VOCs at factory boundary points,environmentally sensitive points,and urban points in the park.The samples were analyzed and processed to obtain 108 VOCs substances.The variation characteristics of atmospheric VOCs were analyzed and the dominant species for ozone(O3)generation and secondary organic aerosol contribution were identified.The non-carcinogenic and carcinogenic risks of VOCs were evaluated using hazard quotient(HQ)and lifetime carcinogenic risk(Risk).Results The mean mass concentrations of the total VOCs(TVOCs)for the first time at factory boundary points,environmentally sensitive points,and urban points were 843.57 μg/m3,321.71 μg/m3,and 149.50 μg/m3,respectively.All three sites showed a higher mean concentration of TVOCs at night than in the daytime.The values of ozone formation potential(OFP)at factory boundary points,environmentally sensitive points,and urban points were 4 507.25 μg/m3,1 271.25 μg/m3,and 321.87 μg/m3,respectively.Methyl methacrylate was the species with the largest contribution to the OFP value at the enterprise plant boundary point.The values of the secondary organic aerosol formation potential(SOAP)at the three sites were 710.61 μg/m3,545.98 μg/m3,and 209.83 μg/m3,respectively.Aromatic hydrocarbons were the component with the largest contribution to SOAP at these three sites.The average contribution of SOAP reached 88.95%.The hazard indices at factory boundary points,environmentally sensitive points,and urban points were 0.31,0.19,and 0.08,respectively,and there was no non-carcinogenic risk at these three sites.In the carcinogenic risk evaluation,the Riskvalues of benzene,ethylbenzene,and methylene chloride at these three sites were higher than the EPA acceptable level of 1×10-6.Conclusion In conclusion,the pollution level of factory boundary points of enterprises in the park is higher than that of environmentally sensitive points and urban points,and higher than that of other industrial parks.Aromatic hydrocarbons have the highest ability of secondary transformation at each site,and toluene has the highest contribution.These three sites present potential carcinogenic risks to the exposed population,and toluene,benzene,ethylbenzene,and methylene chloride should be prioritized as controlled substances in each region.关键词
工业园区/VOCs污染特征/二次转化能力/健康风险评价Key words
industrial park/characteristics of VOCs pollution/secondary conversion ability/health risk evaluation分类
资源环境引用本文复制引用
赖明敏,吴虹,翟崇治,张丹,胡伟,吕平江,袁睿,李华春..某工业园区大气VOCs污染特征及健康风险评价[J].重庆工商大学学报（自然科学版）,2024,41(1):60-67,8.基金项目
国家重点研发计划项目(2019YFC0214401) （2019YFC0214401）
重庆市教育委员会科学技术研究项目(KJQN202100818) （KJQN202100818）
重庆市重点研发项目(CSTC2021JXJ120007) （CSTC2021JXJ120007）
重庆市生态环境监测中心开放基金(CQHJKFKY202204). （CQHJKFKY202204）
