程璜鑫¹,
余葱葱²,
赵委托^3,,,
郭莉²,
古晓雯⁴,
黄庭²,
程胜高²
1. 中国地质大学(武汉) 艺术与传媒学院, 武汉 430074;
2. 中国地质大学(武汉) 环境学院, 武汉 430074;
3. 核工业二零三研究所 环境工程与评价中心, 咸阳 712000;
4. 墨尔本大学 地球科学学院, 帕克维尔 3010

作者简介: 程璜鑫(1982-),男,博士,讲师,研究方向为景观生态修复,E-mail:chx.cug@qq.com.

通讯作者: 赵委托,weituo2006@126.com ;

基金项目: 中央高校新青年教师科研启动基金(CUGW140908)
国家自然科学基金(41072023)
国家自然科学基金(41402312)


中图分类号: X171.5

Uncertainty Evaluation on Health Risk of Heavy Metal Elements in Surface Water of Dongguan, Guangdong Province

Cheng Huangxin¹,
Yu Congcong²,
Zhao Weituo^3,,,
Guo Li²,
Gu Xiaowen⁴,
Huang Ting²,
Cheng Shenggao²
1. School of Arts and Communication, China University of Geosciences, Wuhan 430074, China;
2. School of Environmental Studies, China University of Geosciences, Wuhan 430074, China;
3. The Center of Environmental Engineering and Assessment, No. 203 Research Institute of Nuclear Industry, Xianyang 712000, China;
4. School of Earth Sciences, University of Melbourne, Parkville 3010, Australia

Corresponding author: Zhao Weituo,weituo2006@126.com ;

CLC number: X171.5

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摘要:为了解东莞市西南地区(麻涌镇、沙田镇、虎门镇和长安镇)地表水中重金属污染现状与健康风险水平，对研究区域内29个地表水样中As、Cd、Cr、Cu、Hg、Ni、Pb和Zn等重金属元素进行测定，并运用不确定性健康风险评价模型对研究区地表水中的重金属进行健康风险评估。结果表明：该研究区域地表水中重金属引起的致癌风险较高，人均年健康风险都在Ⅴ级风险及以上。化学致癌性重金属引起的人均年健康风险中，以Cr最大，As次之，然后是Cd。非化学致癌性重金属引起的人均年健康风险中，Pb的风险最大，Ni次之，风险均远小于化学致癌性重金属引起的人均年健康风险。因此，该研究区域地表水中重金属健康风险管理应以化学致癌风险为主，重金属污染物的优先控制顺序为Cr＞As＞Cd。
关键词: 重金属/
健康风险评价/
不确定性评价/
东莞/
地表水

Abstract:To better understand the pollution status of heavy metal elements in surface water and the health risk level of the regions of Machong, Shatian, Humen, and Changan town in the southwest of Dongguan city, the concentrations of heavy metal elements As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn of 29 surface water samples from the study area were analyzed, and the health risk assessment of heavy metal pollution in surface water of the study area was undertaken using the uncertainty health risk assessment model. Our results showed that the carcinogenic risk from heavy metal pollution in surface water of the area is relatively high, with a grade of per capita annual health risk larger than level V. The per capita annual health risk caused by chemical carcinogenic heavy metal elements follows the order of Cr>As>Cd, while it caused by non-chemical carcinogenic heavy metal elements follows the order of Pb>Ni. However, the per capita annual health risk caused by non-chemical carcinogenic heavy metal elements is notably lower than that by chemical carcinogenic heavy metal elements. In summary, health risk management for heavy metal pollution in surface water of the area should focus on chemical carcinogenic risk, and the controlling precedence of heavy metal pollution follows the sequence of Cr>As>Cd.
Key words:heavy metal/
health risk assessment/
uncertainty evaluation/
Dongguan/
surface water.