| 焦化工业场地建筑物和生产设施表面Pb的赋存特征及健康风险 |
| 摘要点击 2057 全文点击 1530 投稿时间：2010-06-05 修订日期：2010-09-01 |
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| 中文关键词 铅 焦化工业场地 建筑物和生产设施 擦拭取样 基准值 风险评价 |
| 英文关键词 Pb coking plant buildings and devices wipe sampling screening level risk assessment |
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| 中文摘要 |
| 研究了某典型焦化工业场地建筑物和生产设施表面Pb的污染特征及其存在的健康风险.在该场地选择了56个建筑物和生产设施，采用美国环保局（United States Environmental Protection Agency,US EPA）的擦拭取样方法，采集了94个擦拭样品，分析了建筑物和生产设施表面Pb的含量，目的是阐明焦化工业场地建筑物和生产设施表面Pb的含量和分布特征，探讨其表面存在的Pb污染潜在健康风险.分析结果表明，焦化厂建筑物和生产设施表面Pb含量差异很大，在0～538 μg/dm2范围内，78.7%的擦拭样品超过美国住房和城乡建设部（United States Department of Housing and Urban Development,US HUD）规定的健康风险基准值（2.69 μg/dm2），推焦车表面Pb含量最高.办公和生活区、精制区、炼焦区和制气区擦拭样品Pb含量的超标率分别为78.9%、75.0%、73.7%和78.6%.在玻璃、防锈漆、水泥和砖这4种材质中，防锈漆表面平均Pb含量最高，其次为砖面和水泥，玻璃表面最低，94.4%的防锈漆表面擦拭样品超过健康风险基准值. |
| 英文摘要 |
| Pb pollution on the surfaces of buildings and devices at a coking plant was studied.The objectives of this study were to determine the Pb content and its spatial variation on the surfaces,and to assess the potential health risk from this Pb.Ninety-four wipe samples were collected from 56 buildings and devices at the coking plant,and their Pb contents were determined.Surface Pb concentrations ranged from 0-538 μg/dm2,and concentrations in 78.7% of the samples exceeded the US Department of Housing and Urban Development (HUD) standard (2.69 μg/dm2).By area,the proportion of samples with concentrations greater than the US HUD standard were 78.9% in the office and living zone,75.0% in the refining zone,73.7% in the coking zone and 78.6% in the coke-gas zone.Among the various types of surfaces,the coke pusher had the highest average surface concentration of Pb.The average surface concentrations of Pb on common coking plant surface materials followed the order paints>brick>cement>glass, and the concentrations in 94.4% of the wipe samples taken from paint surfaces exceeded the US HUD standard. |
