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沈阳市大气PM2.5中重金属污染特征、来源解析及健康风险评价

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任万辉, 李云丹, 苏枞枞, 王国祯, 于兴娜, 康娜. 沈阳市大气PM2.5中重金属污染特征、来源解析及健康风险评价[J]. 环境化学, 2021, (4): 1029-1037. doi: 10.7524/j.issn.0254-6108.2020093002
引用本文: 任万辉, 李云丹, 苏枞枞, 王国祯, 于兴娜, 康娜. 沈阳市大气PM2.5中重金属污染特征、来源解析及健康风险评价[J]. 环境化学, 2021, (4): 1029-1037. doi: 10.7524/j.issn.0254-6108.2020093002
shu
REN Wanhui, LI Yundan, SU Congcong, WANG Guozhen, YU Xingna, KANG Na. Pollution characteristics, source apportionment and health risk assessment of heavy metals in PM2.5 in Shenyang[J]. Environmental Chemistry, 2021, (4): 1029-1037. doi: 10.7524/j.issn.0254-6108.2020093002
Citation: REN Wanhui, LI Yundan, SU Congcong, WANG Guozhen, YU Xingna, KANG Na. Pollution characteristics, source apportionment and health risk assessment of heavy metals in PM2.5 in Shenyang[J]. Environmental Chemistry, 2021, (4): 1029-1037. doi: 10.7524/j.issn.0254-6108.2020093002
shu

沈阳市大气PM2.5中重金属污染特征、来源解析及健康风险评价

  • 1. 辽宁省沈阳生态环境监测中心, 沈阳, 110000;

  • 2. 南京信息工程大学气象灾害预报预警与评估协同创新中心, 中国气象局气溶胶与云降水重点开放实验室, 南京, 210044

    • 通讯作者: 于兴娜, E-mail: xnyu@nuist.edu.cn ; 
  • 基金项目:

    国家重点研发计划项目（2019YFC0214604），国家自然科学基金（41775154）和江苏省"六大人才高峰"项目（JNHB-057）资助.

Pollution characteristics, source apportionment and health risk assessment of heavy metals in PM2.5 in Shenyang

  • 1. Shenyang Ecological Environment Monitoring Center of Liaoning Province, Shenyang, 110000, China;

  • 2. Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing, 210044, China

    • Corresponding author: YU Xingna, xnyu@nuist.edu.cn ; 
  • Fund Project: Supported by the National Key Research and Development Project(2019YFC0214604), National Natural Science Foundation of China(41775154) and "Six Talent Peaks" Project of Jiangsu Province(JNHB-057).

  • 摘要: 为研究沈阳市PM2.5中重金属元素的污染、来源特征及健康风险，使用Xact-625重金属在线分析仪于2019年1月对细颗粒物中的重金属进行连续采样，对8种重金属（Pb、Cr、Cd、Zn、Cu、Ni、Mn和As）污染特征进行分析，并利用富集因子法、PMF源解析法和美国EPA暴露模型对重金属污染程度、来源和健康风险展开研究.结果表明，采样期间沈阳市PM2.5的平均质量浓度为85.1 μg·m-3，超过国家环境空气质量二级标准的天数占51.6%.8种重金属元素的平均总质量浓度为331.2 ng·m-3，其中Cr和As的浓度高于NAAQS（GB3095-2012）和WHO的标准值（WHO规定Cr和As的标准值分别为0.25 ng·m-3和6.6 ng·m-3）.Pb、Cd、Zn、Cu和As富集因子指数均高于40，受人为影响严重.PMF源解析表明，沈阳市PM2.5中重金属主要来源有机动车尾气源、土壤扬尘源、工业源和燃料燃烧源.健康风险评价显示，手-口途径摄入是沈阳大气PM2.5中痕量重金属引发非致癌风险的主要途径，Pb和As存在非致癌风险，Cr对儿童存在致癌风险.
    Abstract: In order to explore the pollution, source characteristics and health risks of heavy metals in PM2.5 in Shenyang, heavy metals samples (Pb, Cr, Cd, Zn, Cu, Ni, Mn and As) of in fine particles were analyzed in January 2019 by Xact-625 heavy metal online analyzer. The pollution levels, sources and health risks of heavy metals were analyzed by the methods of enrichment factor, PMF and the US EPA exposure model. The results indicated that the average concentration of PM2.5 in Shenyang was 85.1 μg·m-3, and 51.6% of the days exceeded the National Air Quality Level Secondary Standard (75 μg·m-3). The average concentration of 8 heavy metal elements was 331.2 ng·m-3, among which the concentrations of Cr and As were higher than that of NAAQS (GB3095-2012) and WHO standard(WHO stipulated that the standard values of Cr and As were 0.25 ng·m-3 and 6.6 ng·m-3). The enrichment factors of Pb, Cd, Zn, Cu and As were higher than 40, indicated that these heavy metals were seriously affected by human activities. PMF source apportionment showed that the main sources of heavy metals in Shenyang were vehicle exhaust, soil dust, industrial and fuel combustion sources. Health risk assessment showed that hand to mouth intake was the main pattern of non-carcinogenic risk caused by trace heavy metals. Pb and As had non-carcinogenic risk, and Cr had carcinogenic risk to children.
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  • 收稿日期:  2020-09-30
任万辉, 李云丹, 苏枞枞, 王国祯, 于兴娜, 康娜. 沈阳市大气PM2.5中重金属污染特征、来源解析及健康风险评价[J]. 环境化学, 2021, (4): 1029-1037. doi: 10.7524/j.issn.0254-6108.2020093002
引用本文: 任万辉, 李云丹, 苏枞枞, 王国祯, 于兴娜, 康娜. 沈阳市大气PM2.5中重金属污染特征、来源解析及健康风险评价[J]. 环境化学, 2021, (4): 1029-1037. doi: 10.7524/j.issn.0254-6108.2020093002
shu
REN Wanhui, LI Yundan, SU Congcong, WANG Guozhen, YU Xingna, KANG Na. Pollution characteristics, source apportionment and health risk assessment of heavy metals in PM2.5 in Shenyang[J]. Environmental Chemistry, 2021, (4): 1029-1037. doi: 10.7524/j.issn.0254-6108.2020093002
Citation: REN Wanhui, LI Yundan, SU Congcong, WANG Guozhen, YU Xingna, KANG Na. Pollution characteristics, source apportionment and health risk assessment of heavy metals in PM2.5 in Shenyang[J]. Environmental Chemistry, 2021, (4): 1029-1037. doi: 10.7524/j.issn.0254-6108.2020093002
shu

沈阳市大气PM2.5中重金属污染特征、来源解析及健康风险评价

    通讯作者: 于兴娜, E-mail: xnyu@nuist.edu.cn ; 
  • 1. 辽宁省沈阳生态环境监测中心, 沈阳, 110000;
  • 2. 南京信息工程大学气象灾害预报预警与评估协同创新中心, 中国气象局气溶胶与云降水重点开放实验室, 南京, 210044
  • 收稿日期:  2020-09-30
基金项目:

国家重点研发计划项目（2019YFC0214604），国家自然科学基金（41775154）和江苏省"六大人才高峰"项目（JNHB-057）资助.

摘要: 为研究沈阳市PM2.5中重金属元素的污染、来源特征及健康风险，使用Xact-625重金属在线分析仪于2019年1月对细颗粒物中的重金属进行连续采样，对8种重金属（Pb、Cr、Cd、Zn、Cu、Ni、Mn和As）污染特征进行分析，并利用富集因子法、PMF源解析法和美国EPA暴露模型对重金属污染程度、来源和健康风险展开研究.结果表明，采样期间沈阳市PM2.5的平均质量浓度为85.1 μg·m-3，超过国家环境空气质量二级标准的天数占51.6%.8种重金属元素的平均总质量浓度为331.2 ng·m-3，其中Cr和As的浓度高于NAAQS（GB3095-2012）和WHO的标准值（WHO规定Cr和As的标准值分别为0.25 ng·m-3和6.6 ng·m-3）.Pb、Cd、Zn、Cu和As富集因子指数均高于40，受人为影响严重.PMF源解析表明，沈阳市PM2.5中重金属主要来源有机动车尾气源、土壤扬尘源、工业源和燃料燃烧源.健康风险评价显示，手-口途径摄入是沈阳大气PM2.5中痕量重金属引发非致癌风险的主要途径，Pb和As存在非致癌风险，Cr对儿童存在致癌风险.

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