环渤海大气PAHs浓度和健康风险对新冠疫情管控的响应  

Response of atmospheric PAHs concentrations and health risks to COVID-19 control around the Bohai Sea

作　　者：马雯雯 孙溶 宗政[1,2] 田崇国 李军[4] 张干 MA Wenwen;SUN Rong;ZONG Zheng;TIAN Chongguo;LI Jun;ZHANG Gan(CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation,Yantai Institute of Coastal Zone Research,Chinese Academy of Sciences,Yantai 264003,Shandong,China;Shandong Key Laboratory of Coastal Environmental Processes,Yantai 264003,Shandong,China;University of Chinese Academy of Sciences,Beijing 100049,China;State Key Laboratory of Organic Geochemistry,Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,Guangdong,China)

机构地区：[1]中国科学院烟台海岸带研究所,中国科学院海岸带环境过程与生态修复重点实验室,山东烟台264003 [2]山东省海岸带环境过程重点实验室,山东烟台264003 [3]中国科学院大学,北京100049 [4]中国科学院广州地球化学研究所,有机地球化学国家重点实验室,广东广州510640

出　　处：《地球化学》2024年第2期212-220,共9页Geochimica

基　　金：国家自然科学基金面上项目(42177089)资助。

摘　　要：2019年冬季突发新冠病毒疫情,为控制疫情进一步传播,全国各地实行了管控措施,其间人为活动受到很大限制。多环芳烃(PAHs)是一类以人为活动排放为主的污染物,且环渤海区域大气PAHs污染严重。为评估环渤海区域大气PAHs浓度和健康风险对新冠疫情管控的响应,本研究于2018年12月~2020年8月在环渤海区域部署了9个站点采集大气被动样品,对比分析疫情不同时期PAHs的浓度与健康风险变化。结果显示,2019年12月~2020年5月(疫情期间)15种PAHs(∑_(15)PAHs)的浓度(44.7±15.8ng/m^(3))比2018年12月~2019年5月(疫情前1,104.7±70.5 ng/m^(3))下降了57.3%,主要由低环PAHs浓度下降引起。2020年6月~8月(复工后)∑_(15)PAHs浓度与2019年6月~8月(疫情前2)相当,中环PAHs浓度升高。疫情期间渤海北部采样点∑_(15)PAHs浓度比南部采样点下降更多。疫情期间大气PAHs增加的终身患癌风险(ILCR)为5.69×10^(-5),比疫情前1时期下降了30.3%。复工后大气PAHs的ILCR比疫情前2时期下降25.4%,主要由复工后高环PAHs浓度下降导致。In the winter of 2019,to control the further spread of the COVID-19 pandemic,control measures were implemented across the country,and human activities were greatly restricted during this period.PAHs are a kind of pollutant mainly discharged by human activities,and the atmospheric PAHs pollution around the Bohai Sea is serious.In order to evaluate the response of atmospheric PAHs concentrations and health risks to the control of COVID-19 in this region,nine sites were deployed to collect atmospheric passive samples from December 2018 to August 2020 around the Bohai Sea,and the changes of PAHs concentrations and health risks in different pandemic periods were compared and analyzed.The results showed that the concentration of 15 PAHs decreased by 57.3%from December 2019 to May 2020(during the pandemic,44.7±15.8 ng/m^(3))compared with December 2018 to May 2019(pre-pandemic,104.7±70.5 ng/m^(3)),which was mainly caused by the decrease of low-ring PAHs concentration.The concentration of PAHs in the period from June to August 2020(after the resumption of work)was the same as that in the same period in the previous year(from June to August 2019),and the proportion of medium-ring PAHs increased.During the pandemic period,the concentration of PAHs in the northern Bohai sampling sites decreased more than that in the southern Bohai sampling sites.The incremental lifetime cancer risk of atmospheric PAHs during the pandemic period was 5.69×10^(-5),which decreased by 30.3%compared with the pre-pandemic period.The incremental lifetime cancer risk caused by atmospheric PAHs during the period after the resumption of work decreased by 25.4%compared with the same period the previous year,mainly due to the decrease of the concentration of high-ring PAHs during the period after the resumption of work.

关 键 词：新冠疫情 环渤海 大气PAHs 浓度 健康风险 

分 类 号：X511[环境科学与工程—环境工程] X823