首页 | 期刊简介 | 编委会 | 投稿要求 | 化学品管理信息动态 | 学术会议 | 专辑 | 毒理学测试技术设备 | 订购本刊 | 联系我们 | English version

许紫峻1,2,汪溪远1,*,师庆东1,2,袁婷婷1,2,王显1,祖拜代·木依不拉1,2,王伟1,2. 准东煤矿区土壤镉污染风险评价及敏感性分析[J]. 生态毒理学报, 2018, 13(2): 159-170
准东煤矿区土壤镉污染风险评价及敏感性分析
Human Health Risk Assessment and Environmental Sensitivity Analysis of Soil Cadmium Pollution in Zhundong Mine Region of East Junggar Basin in Xinjiang, China
投稿时间:2017-05-12  修订日期:2017-10-11
DOI:10.7524/AJE.1673-5897.20170512002
中文关键词:    土壤  健康风险评价  准东煤矿区  缓冲区分析
英文关键词:cadmium  soil  health risk assessment  sensitivity analysis  Zhundong coal mine region
基金项目:科技支疆项目(20139911105);国家科技支撑计划项目(2014BAC15B01)
作者单位
许紫峻1,2,汪溪远1,*,师庆东1,2,袁婷婷1,2,王显1,祖拜代·木依不拉1,2,王伟1,2 1.新疆大学资源与环境科学学院智慧城市与环境建模自治区普通高校重点实验室乌鲁木齐 830046 2.新疆绿洲生态重点实验室乌鲁木齐 830046 
摘要点击次数: 328
全文下载次数: 215
中文摘要:
      镉是一种毒性很强的重金属元素,易通过食物链进入人体,对人体健康产生影响。新疆地区的煤炭资源开发已引起重金属污染问题,但目前有关镉污染风险评价的研究相对不足。本研究采用地质累积指数法、潜在生态危害指数法、美国环保局(US EPA)健康风险评估方法和缓冲区分析方法,对准东红沙泉和北山煤矿土壤中镉的污染现状、生态风险水平和健康风险水平做了分析与评价。结果显示:1) 研究区土壤镉含量普遍超过国家土壤环境质量Ⅱ级标准,处于重污染水平;2) 研究区的镉污染具有极高生态风险;3) 镉污染水平和生态风险系数具有明显空间性,它们在研究区的强度排序为堆煤场>矿区生活区>芨芨湖>雀仁乡;4) 手-口途径是最主要的健康风险暴露途径,所有人群中儿童暴露风险最高;5) 准东煤矿区镉污染水平较高,但其非致癌水平和致癌水平均未超过风险限值;6) 矿区周边0~30 km区域内属于健康风险高敏感区域。综上可知:准东地区煤矿开采引起了周边环境镉污染。镉污染对人类健康,特别是儿童的健康具有较高的暴露风险。当地镉污染虽未达到致病水平,但也应引起足够重视。
  
AuthorAffiliation
Xu Zijun1,2,Wang Xiyuan1,*,Shi Qingdong1,2,Yuan Tingting1,2, Wang Xian1,Zubaida·Muyibula1,2, Wang Wei1,21. College of Resources and Environmental Science,General Institutes of Higher Learning Key Laboratory of Smart City and Environmental Modeling, Xinjiang University,Urumqi 830046,China 2. Key Laboratory of Xinjiang Oasis Ecology,Xinjiang University,Urumqi 830046,China
英文摘要:
      Cadmium (Cd) is a highly toxic heavy metal element, which can affect human health through the amplification via food chain. The development of mineral resources produces a series of problems of heavy metal pollution in Zhundong Region of Xinjiang, China. However, the health risk assessment of Cd element remains unclear. In this study, the geo-accumulation index, the methods of potential ecological risk assessment, health risk assessment of USA EPA, and the spatial statistical analysis were used to investigate and evaluate the pollution situation, the ecological risk and human health risk of Cd in the Hongshaquan and Beishan coal mining areas of Zhundong Region of Xinjiang, China. The results showed that: 1) Cd contents in soil of Zhundong Region were higher than that of the second level of national heavy metal pollution standard. Zhundong Region has the high Cd pollution level. 2) Ecological risk (RI) and geoaccumulation index (Igeo)show that Cd pollution was extremely strong with high ecological risk in the study area. 3) Cd pollution level and ecological risk showed obvious spatial heterogeneity, with their contents sorted by the coal yard >residential quarters of mining area > Jijihu Village > Queren Town. 4) The intake by mouth and hand was the most common way of Cd exposure. Children have the highest risk of Cd exposure among people. 5) The results of human health risk assessment showed that Cd content was less than the carcinogenic limit values of Cd pollution in study region. 6) 0-30 km around the mining area was a high sensitive region of Cd against human health. In conclusion, the development of mineral resources produces Cd pollution in Zhundong Region of Xinjiang. Then this pollution already affected human health and imposed the highest risk of Cd exposure to children. Although Cd content was less than the carcinogenic limit values of Cd pollution, the local government departments should develop some strategies to control Cd pollution.
查看全文  查看/发表评论  下载PDF阅读器
关闭

您是第4934388位访问者   京ICP备 09058833 号

主办单位:中国科学院生态环境研究中心     单位地址:北京市海淀区双清路18号

 服务热线:010-62941072       传真:010-62923563       邮编:100085    Email: stdlxb@rcees.ac.cn

    本系统由北京勤云科技发展有限公司设计

0463美女美女3764美女美女ktv