| 沈阳市街道灰尘中重金属的环境影响与健康风险评价 |
| |
| 引用本文： | 李法云,胡成,张营,沈曼莉,杨小南.沈阳市街道灰尘中重金属的环境影响与健康风险评价[J].气象与环境学报,2010,26(6):59-64. |
| |
| 作者姓名： | 李法云 胡成 张营 沈曼莉 杨小南 |
| |
| 作者单位： | 1. 辽宁石油化工大学生态环境研究院，辽宁 抚顺 113001;2. 辽宁大学环境学院，辽宁 沈阳 110036;3. 辽宁省环境科学研究院，辽宁 沈阳110036;4. 湖南农业大学资源环境学院，湖南 长沙 410128;5. 辽宁省高校污染控制与环境修复重点实验室，辽宁 沈阳 110036） |
| |
| 基金项目： | 国家科技支撑计划项目，国家自然科学基金，辽宁省百千万人才工程项目，辽宁省自然科学基金，辽宁大学省重点学科与辽宁省高校污染控制与环境修复重点实验室开放基金 |
| |
| 摘 要： | 采集中国沈阳市区主要交通干道街道灰尘样品,在对其重金属Cd、Cu、Pb和Zn环境影响分析的基础上,应用美国EPA人体暴露风险评估方法对街道灰尘重金属的健康风险进行评估。结果表明:手—口接触行为是人体(儿童和成人)摄入街道灰尘重金属的最主要途径,其次为皮肤吸收和呼吸吸入。重金属对人体的非致癌风险表现为:Pb大于Cd大于Cu大于Zn,均小于非致癌风险阈值1,对人体不会造成健康危害,且儿童的非致癌风险大于成人。重金属Cd目前尚未形成致癌风险,但其对儿童的潜在生态危害值得重视。
|
| 关 键 词： | 街道灰尘 重金属 环境影响 健康风险评价 沈阳市 |
| 收稿时间： | 2010-10-11 |
| 修稿时间： | 2010-11-20 |
Environmental impact and health risk assessment of heavy metals in street dust in Shenyang,Liaoning province |
| |
| LI Fa-yun,HU Cheng,ZHANG Ying,SHEN Man-li,YANG Xiao-nan.Environmental impact and health risk assessment of heavy metals in street dust in Shenyang,Liaoning province[J].Journal of Meteorology and Environment,2010,26(6):59-64. |
| |
| Authors: | LI Fa-yun HU Cheng ZHANG Ying SHEN Man-li YANG Xiao-nan |
| |
| Institution: | 1. Institute of Eco-environmental Sciences, Liaoning University of Petroleum & Chemical Technology, Fushun 113001, China; 2. School of Environmental Science, Liaoning University, Shenyang 110036, China; 3. Liaoning Academy of Environmental Science, Shenyang 110036, China; 4. School of Resources and Environment, Hu’nan Agricultural University, Changsha 410128, China; 5. Liaoning Provincial Key Laboratory of Pollution Control and Environmental Remediation, Shenyang 110036, China) |
| |
| Abstract: | Based on spatial distribution characteristics of Cd, Cu, Pb and Zn in street dust in Shenyang, the exposure and risk assessment method of heavy metals in street dusts for children and adults were carried out using US EPA health risk assessment model. The results show that the heavy metals in street dust are mainly ingested by human bodies through hand-mouth ingestion, and then through skin absorption and breath suction. The order of non-cancer hazard indexes of heavy metals is Pb>Cd>Cu>Zn. The non-cancer hazard indexes and carcinogen risks of heavy metals are both lower than their threshold values, and it suggests that it will not harm the health. Non-cancer risk is higher for children than for adults. Now, Cd in street dust is not cancer risk in Shenyang, while its potential ecological hazard on children should be considered. |
| |
| Keywords: | Street dust Heavy metal Environmental impact Health risk assessment Shenyang |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《气象与环境学报》浏览原始摘要信息 |
| 点击此处可从《气象与环境学报》下载免费的PDF全文 |
|
