{"title":"细颗粒物中重金属的化学形态与环境健康风险","authors":"D. Sah, P. Verma, K. M. Kumari, A. Lakhani","doi":"10.1109/R10-HTC.2016.7906808","DOIUrl":null,"url":null,"abstract":"The respirable fraction of ambient particulate matter with aerodynamic diameter less than 2.5μm, (PM2.5) collected at a rural site in Agra during September, 2015 to February, 2016 were characterized with respect to 8 metals (Cd, Cr, Fe, Mn, Ni, Pb and Zn) by Inductively coupled plasma-atomic emission spectroscopy. The metals were chemically fractionated by sequential extraction in order to determine their mobility, bioavailability and health risk. The mobility of the metals were found in the following order: Ni (80%) > Pb (72%) > Zn (65%) > Mn (63%) > Cu (57%) > Cd (51%) > Fe (44%) > Cr (40%). The contamination factors (Cf) and risk assessment code (RAC) were calculated to assess the environmental risk of heavy metals. Due to the exposure to Cd, Cr (VI) and Ni present in air, the total incremental lifetime cancer risks (ILCR) were 2.27×10<sup>−5</sup>, 1.56×10<sup>−5</sup> and 5.71×10<sup>−6</sup>, respectively showing their potential risk to human beings.","PeriodicalId":174678,"journal":{"name":"2016 IEEE Region 10 Humanitarian Technology Conference (R10-HTC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Chemical speciation and environmental health risk of heavy metals in fine particulate matter\",\"authors\":\"D. Sah, P. Verma, K. M. Kumari, A. Lakhani\",\"doi\":\"10.1109/R10-HTC.2016.7906808\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The respirable fraction of ambient particulate matter with aerodynamic diameter less than 2.5μm, (PM2.5) collected at a rural site in Agra during September, 2015 to February, 2016 were characterized with respect to 8 metals (Cd, Cr, Fe, Mn, Ni, Pb and Zn) by Inductively coupled plasma-atomic emission spectroscopy. The metals were chemically fractionated by sequential extraction in order to determine their mobility, bioavailability and health risk. The mobility of the metals were found in the following order: Ni (80%) > Pb (72%) > Zn (65%) > Mn (63%) > Cu (57%) > Cd (51%) > Fe (44%) > Cr (40%). The contamination factors (Cf) and risk assessment code (RAC) were calculated to assess the environmental risk of heavy metals. Due to the exposure to Cd, Cr (VI) and Ni present in air, the total incremental lifetime cancer risks (ILCR) were 2.27×10<sup>−5</sup>, 1.56×10<sup>−5</sup> and 5.71×10<sup>−6</sup>, respectively showing their potential risk to human beings.\",\"PeriodicalId\":174678,\"journal\":{\"name\":\"2016 IEEE Region 10 Humanitarian Technology Conference (R10-HTC)\",\"volume\":\"10 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2016 IEEE Region 10 Humanitarian Technology Conference (R10-HTC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/R10-HTC.2016.7906808\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 IEEE Region 10 Humanitarian Technology Conference (R10-HTC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/R10-HTC.2016.7906808","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
摘要
对2015年9月至2016年2月在阿格拉某农村地区采集的空气动力学直径小于2.5μm的大气颗粒物(PM2.5)可吸入组分，采用电感耦合等离子体-原子发射光谱对8种金属(Cd、Cr、Fe、Mn、Ni、Pb和Zn)进行了表征。通过顺序萃取对金属进行化学分馏，以确定其流动性、生物利用度和健康风险。金属的迁移率依次为:Ni (80%) > Pb (72%) > Zn (65%) > Mn (63%) > Cu (57%) > Cd (51%) > Fe (44%) > Cr(40%)。通过计算污染因子(Cf)和风险评价码(RAC)对重金属环境风险进行评价。由于暴露于空气中存在的Cd、Cr (VI)和Ni，其终生癌症总增量风险(ILCR)分别为2.27×10−5、1.56×10−5和5.71×10−6，显示了它们对人类的潜在风险。
Chemical speciation and environmental health risk of heavy metals in fine particulate matter
The respirable fraction of ambient particulate matter with aerodynamic diameter less than 2.5μm, (PM2.5) collected at a rural site in Agra during September, 2015 to February, 2016 were characterized with respect to 8 metals (Cd, Cr, Fe, Mn, Ni, Pb and Zn) by Inductively coupled plasma-atomic emission spectroscopy. The metals were chemically fractionated by sequential extraction in order to determine their mobility, bioavailability and health risk. The mobility of the metals were found in the following order: Ni (80%) > Pb (72%) > Zn (65%) > Mn (63%) > Cu (57%) > Cd (51%) > Fe (44%) > Cr (40%). The contamination factors (Cf) and risk assessment code (RAC) were calculated to assess the environmental risk of heavy metals. Due to the exposure to Cd, Cr (VI) and Ni present in air, the total incremental lifetime cancer risks (ILCR) were 2.27×10−5, 1.56×10−5 and 5.71×10−6, respectively showing their potential risk to human beings.
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