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首页> 外文会议>2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring >Health Risk Assessment of Heavy Metals in Shanghai Urban Parks
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Health Risk Assessment of Heavy Metals in Shanghai Urban Parks

机译：上海城市公园重金属健康风险评估

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摘要

Heavy metals, a kind of persistent toxic substance(PTS), were taken for the study in this paper. Dust samples we recollected in Shanghai urban parks. The concentrations of mean metals in dust samples were in the order Zn > Pb > Cu, where Pb shows the greatest coefficient of variation. Human health risk was evaluated in Shanghai urban parks. The pathway of direct ingestion is dominating for children exposed to PTS, which is more than 98% of the overall exposure dose. Through statistical analysis of arcgis module, the corresponding distributions of Cu, Pb and Zn show an increasing trend towards inner ring road. By contrast with roadside dust samples, collected near the upper reaches of the Huang pu River, the main sources of these elements in Shanghai urban parks were mainly derived from human activities, especially for traffic sources.
机译：重金属是一种持久性有毒物质（PTS），本文进行了研究。我们在上海城市公园收集的灰尘样品。灰尘样品中的平均金属浓度依次为Zn> Pb> Cu，其中Pb显示最大的变异系数。在上海城市公园评估了人类健康风险。接触PTS的儿童直接摄入途径占主导地位，占总接触剂量的98％以上。通过对Arcgis模块的统计分析，Cu，Pb和Zn的对应分布呈现出向内环线增加的趋势。与在黄浦江上游附近收集的路边灰尘样本相反，上海城市公园中这些元素的主要来源主要来自人类活动，特别是交通活动。

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