|
| 苏州工业园区大气PM2.5中主要重金属污染特征及其健康风险评价 |
| Pollution Characteristic and Health Risk Assessment of Heavy Metals in PM2.5, Suzhou Industrial Park |
| |
| DOI： |
| 中文关键词: PM2.5 重金属 污染特征 健康风险评估 苏州工业园区 |
| 英文关键词: PM2.5 Heavy metals Pollution characteristic Health risk assessment Suzhou Industrial Park |
| 基金项目:国家科技支撑计划“生活垃圾收运及处理过程智能监控系统集成及应用” 基金资助项目（2014BAC02B02-05） |
|
| 摘要点击次数: 1741 |
| 全文下载次数: 0 |
| 中文摘要: |
| 通过2015年1月、4月、8月、11月对苏州工业园区大气中PM2.5及Pb、Cr、Cd、As、Ni 5种元素质量浓度的监测，并采用《污染场地风险评估技术导则》（HJ 25.3—2014）中推荐模型对该5种元素通过呼吸途径引起的人体健康风险进行评价。结果表明，Pb、Cr、Cd、As、Ni 5种元素平均质量浓度分别为76.2 ng/m3、6.92 ng/m3、1.45 ng/m3、4.14 ng/m3和5.71 ng/m3，平均质量浓度从高到低依次为Pb＞Cr＞Ni＞Cd＞As；5种元素的致癌风险与危害熵分别为6.89×10-15～6.84×10-12和2.57×10-9～4.80×10-7，分别低于可接受致癌风险水平（10-6）与可接受危害熵（1）。整体而言，苏州工业园区大气重金属污染程度相对较低。 |
| 英文摘要: |
| For evaluating human health risks of 5 elements including Pb, Cr, Cd, As and Ni in PM2.5 in Suzhou Industrial Park, PM2.5 and the above 5 elements in PM2.5 were monitored in January, April, August, November, 2015. The model recommended by “Technical guidelines for risk assessment of contaminated sites”(HJ 25.3—2014) was used to evaluate the health risks caused by breathing. The results showed the mass concentration of Pb, Cr, Cd, As, Ni in PM2.5 were 76.2 ng/m3、6.92 ng/m3、1.45 ng/m3、4.14 ng/m3 and 5.71 ng/m3 respectively, which showed a descending order of Pb＞Cr＞Ni＞Cd＞As. The carcinogenic risk and hazard quotient of these 5 elements were between 6.89×10-15～6.84×10-12 and 2.57×10-9～4.80×10-7, respectively, both were under the acceptable risk level. Overall, the pollution of heavy metals in Suzhou Industrial Park was relatively slight. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
