新疆库尔勒市道路积尘重金属污染及健康风险评价
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

X53

基金项目:

国家自然科学基金项目(41867067与41561073)资助。


Pollution and health risks assessment of heavy metals of road dust in Korla City, Xinjiang
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    为探究绿洲城市道路积尘重金属污染风险,在新疆库尔勒市采集54个代表性道路积尘样品,分析其中Hg、Cd、As、Pb、Cr和Cu等6种元素含量,基于GIS技术与地学统计法,采用污染负荷指数法和US EPA健康风险评价模型,对道路积尘中重金属污染及潜在健康风险进行评价。结果表明:库尔勒市道路积尘中Hg、Cd、As、Pb和Cu等元素含量的平均值均小于土壤环境质量—建设用地土壤污染风险管控标准(GB 36600—2018)中的筛选值,但Cr元素含量平均值为相应筛选值的9.90倍。污染评价结果表明,研究区道路积尘中Cr呈现重度污染,Hg、Cd、As、Pb和Cu呈无污染。道路积尘中重金属元素的污染负荷指数介于0.0142~0.0522,平均值为0.0266,处于无污染水平。从道路积尘重金属污染空间分布格局来看,库尔勒市东北部和北部区域出现污染高值区。健康风险评估结果表明,经手-口摄入途径是库尔勒市道路积尘重金属日均暴露量及健康风险的主要途径,儿童受到的健康风险高于成人。库尔勒市道路积尘中Hg、Cd、As、Pb、Cr与Cu等元素的非致癌风险及致癌风险处于安全范围内,As对非致癌风险的贡献最大,Cr对致癌风险的贡献最大。

    Abstract:

    In order to evaluate the pollution risk of heavy metals in road dust of the oasis city, the authors collected a total of 54 typical road dust samples from Korla, Xinjiang, and analyzed the concentrations of Hg, Cd, As, Pb, Cr, and Cu elements. The pollution and potential health risk of heavy metals in road dust were analyzed on the basis of GIS technology and geostatistical analysis methods and by using the Pollution Load Index and the US EPA health risk assessment model. The obtained results indicate that the average concentrations of Hg, Cd, As, Pb, and Cu elements in the road dust of Korla City are less than the screening values of the Soil Environmental Quality-Control Standard for Soil Contamination of Development Land (GB 36600-2018), but the average concentration of Cr exceeds the corresponding screening value by factor of 9.90 times. The results of pollution assessment indicate that heavy metals in the collected dust samples are heavily polluted by Cr, without pollution by Hg, Cd, As, Pb, and Cu. The Pollution Load Index of heavy metals in road dust varies in the range of 0.0142~0.0522, with an average value of 0.0266, at the no pollution level. The spatial distribution patterns of the six heavy metals in road dust indicate that the high concentrations are distributed mainly in the northeastern and northern areas of Korla City. The results of health risk assessment indicate that the handmouth ingest intake is the dominant pathway of the average daily exposure and health risks of road dusts in Korla, and the health risk of heavy metals in road dust for children are higher than that for adults. The non-carcinogenic and carcinogenic risk of metals such as Hg, Cd, As, Pb, Cr, and Cu in road dust in Korla is within the safe range. As contributes most to non-carcinogenic risk, whereas Cr contributes most to carcinogenic risk of road dust in Korla City.

    参考文献
    相似文献
    引证文献
引用本文

阿地拉&#;艾来提,麦麦提吐尔逊&#;艾则孜,靳万贵,姑力巴努&#;艾尼,艾尼瓦尔&#;买买提,阿里木江&#;卡斯木. 新疆库尔勒市道路积尘重金属污染及健康风险评价[J]. 中国地质, 2020, 47(6): 1915-1925.
Adila HAYRAT, Mamattursun EZIZ, JIN Wangui, Gulbanu HINI, Anwar MOHAMMAD, Alimujiang KASIMU. Pollution and health risks assessment of heavy metals of road dust in Korla City, Xinjiang[J]. Geology in China, 2020, 47(6): 1915-1925(in Chinese with English abstract).

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2020-04-09
  • 最后修改日期:2020-06-25
  • 录用日期:
  • 在线发布日期: 2020-12-10
  • 出版日期:
亮点文章推荐
古人云:工欲善其事,必先利其器。我国新一轮战略找矿行动已全面启动。用什么方法、什么手段实现增储上产是面临的突出问题。本刊登载了几篇基于新技术、新方法实现找矿突破的实例,供大家参阅,助力新一轮战略找矿目标的实现。
基于随机森林算法的找矿预测——以冈底斯成矿带西段斑岩—浅成低温热液型铜多金属矿为例. 欧阳渊等,2023, 50(2):303-330.
基于重磁资料在山东齐河—禹城探获矽卡岩型富铁矿:对超深覆盖区找矿的启示. 王润生等,2023, 50(2):331-346.
自然伽马曲线重构波阻抗反演在勘探含铀有利成矿砂体中的尝试. 梁建刚等,2023, 50(2):347-358.
宽频大地电磁法寻找“界面型”隐伏金矿床:以黔西南戈塘地区深部找矿为例. 张伟等,2023, 50(2):359-375.
页岩气基础地质调查钻井技术研究进展及展望. 赵洪波等,2023, 50(2):376-394.
关闭