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预防医学  2019, Vol. 31 Issue (1): 23-27    DOI: 10.19485/j.cnki.issn2096-5087.2019.01.006
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婺城区大气PM2.5金属元素污染的慢性健康风险评估
何晓庆, 罗进斌, 王祚懿, 盛微
金华市疾病预防控制中心环境与职业卫生科,浙江 金华 321002
Chronic health risk assessment on metal elements in atmospheric PM2.5 in Wucheng District
HE Xiao-qing, LUO Jin-bin, WANG Zuo-yi, SHENG Wei
Department of Environmental and Occupational Health,Jinhua Center for Disease Control and Prevention,Jinhua,Zhejiang 321002,China
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摘要 目的 评估金华市婺城区大气PM2.5中金属元素污染的慢性健康风险。方法 于2015—2017年在婺城区开展大气PM2.5采样,采用电感耦合等离子体质谱法(ICP-MS)测定样品中12种金属元素含量,并采用美国国家环境保护局推荐的环境健康风险评估“四步法”评估PM2.5中金属元素的慢性健康风险。结果 婺城区2015—2017年PM2.5平均浓度为(53.42±26.95)μg/m3,不同季节和年份PM2.5平均浓度差异均有统计学意义(P<0.05)。PM2.5中金属元素浓度的MQR)为136.66(117.14)ng/m3,其中铝、铅、锰、镉和硒浓度较高;2016—2017年,镉平均浓度均超过参考限值(5.00 ng/m3)。冬季PM2.5中金属元素浓度最高,MQR)为175.12(132.45)ng/m3;夏季最低,MQR)为92.55(52.81)ng/m3。PM2.5中9种金属元素对成人总非致癌健康风险系数(HQ)为2.90(>1),除镉外,砷、铍、镍、硒、汞、铝、锰和锑的HQ均<1;5种金属元素对成人总致癌风险R>10-6,其中砷和镉的致癌风险R>10-6,铍、铅和镍的致癌风险均R<10-6结论 婺城区大气PM2.5中金属元素铝、铅、锰、镉和硒含量较高;其中镉的浓度超过参考限值,其非致癌风险和致癌风险均较高;砷的致癌风险较高。
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何晓庆
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关键词 PM2.5金属元素致癌风险评估    
Abstract
Objective To investigate the characteristics and the chronic health risks of metals in fine particulate matter(PM2.5) of Wucheng District,Jinhua .Methods The PM2.5 samples were collected in Wucheng District of Jinhua from the year 2015 to 2017.Chromium(Cr), manganese (Mn),nickel(Ni),arsenic(As),selenium(Se),cadmium(Cd),antimony(Sb),lead(Pb),beryllium(Be),aluminum(Al),thallium(Tl)and mercury(Hg) were measured by inductively coupled plasma mass spectrometry(ICP-MS). The health risks of the metals were assessed based on the standard method recommended by United States Environmental Protection Agency .Results From 2015 to 2017,the average concentration of PM2.5 in Wucheng District was(53.42±26.95)μg/m3,and the average concentration of PM2.5 in each season and each year were significantly different(P<0.05). The median(interquartile range)concentration of metal elements in PM2.5 was 136.66(117.14)ng/m3,with higher concentration of Al,Pb,Mn,Cd and Se. From 2016 to 2017,the average concentration of Cd exceeded the reference limit(5.00 ng/m3). The median (interquartile range) concentration of metal elements in PM2.5 in winter was 175.12(132.45)ng/m3,the highest,and in summer was 92.55(52.81)ng/m3,the lowest. The total hazard quotient(HQ)of nine kinds of metal elements in PM2.5 was 2.90;the HQ of As,Be,Ni,Se,Hg,Al,Mn and Sb were all less than 1,except Cd. The total carcinogenic risk of five kinds of metal elements in PM2.5 was more than 10-6,among which the carcinogenic risk of As and Cd were more than 10-6,and the carcinogenic risk of Be,Pb and Ni were less than 10-6 .Conclusion The concentrations of Al,Pb,Mn,Cd and Se in PM2.5 of Wucheng District were higher and the concentration of Cd exceeded the reference limit. The non-carcinogenic and carcinogenic risk of Cd were both higher,the carcinogenic risk of As was also higher.
Key wordsFine particulate matter    Metal element    Carcinogenicity    Risk assessment
收稿日期: 2018-06-21      出版日期: 2019-01-03
ZTFLH:  R122.7  
基金资助:浙江省科学技术厅重大科技专项重点社会发展项目(2014C03025); 金华市社会发展类研究项目(2015-3-069)
通信作者: 何晓庆,E-mail:jhcdchxq@163.com   
作者简介: 何晓庆,硕士,副主任医师,主要从事环境与职业卫生工作
引用本文:   
何晓庆, 罗进斌, 王祚懿, 盛微. 婺城区大气PM2.5金属元素污染的慢性健康风险评估[J]. 预防医学, 2019, 31(1): 23-27.
HE Xiao-qing, LUO Jin-bin, WANG Zuo-yi, SHENG Wei. Chronic health risk assessment on metal elements in atmospheric PM2.5 in Wucheng District. Preventive Medicine, 2019, 31(1): 23-27.
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http://www.zjyfyxzz.com/CN/10.19485/j.cnki.issn2096-5087.2019.01.006      或      http://www.zjyfyxzz.com/CN/Y2019/V31/I1/23
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