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铬污染场地调查数据评估与暴露浓度估计

颜湘华 王兴润 李丽 王琪 吕诗铭 孙晓楠

颜湘华, 王兴润, 李丽, 王琪, 吕诗铭, 孙晓楠. 铬污染场地调查数据评估与暴露浓度估计[J]. 环境科学研究, 2013, 26(1): 103-108.
引用本文: 颜湘华, 王兴润, 李丽, 王琪, 吕诗铭, 孙晓楠. 铬污染场地调查数据评估与暴露浓度估计[J]. 环境科学研究, 2013, 26(1): 103-108.
YAN Xiang-hua, WANG Xing-run, LI li, WANG Qi, Lü Shi-ming, SUN Xiao-nan. Estimating Exposure Point Concentrations and Evaluating Survey Data for a Chromium-Contaminated Site[J]. Research of Environmental Sciences, 2013, 26(1): 103-108.
Citation: YAN Xiang-hua, WANG Xing-run, LI li, WANG Qi, Lü Shi-ming, SUN Xiao-nan. Estimating Exposure Point Concentrations and Evaluating Survey Data for a Chromium-Contaminated Site[J]. Research of Environmental Sciences, 2013, 26(1): 103-108.

铬污染场地调查数据评估与暴露浓度估计

基金项目: 国家高技术研究发展计划(863)项目(2009AA063101)

Estimating Exposure Point Concentrations and Evaluating Survey Data for a Chromium-Contaminated Site

  • 摘要: 针对某铬污染场地调查采样得到的1 269个土壤w(TCr)和w〔Cr(Ⅵ)〕,分别采用检出限替代法和Walsh''s Test方法分析了未检出值和潜在的异常值.结果表明,异常值的取舍对数据的统计分析结果影响较大,结合该铬污染场地的实际情况和采样记录,最终保留了潜在异常值. 分别采用Q-Q图示法和假设检验方法探讨了该铬污染场地土壤w(TCr)和w〔Cr(Ⅵ)〕的数据分布形态发现,二者均不符合3种常见的分布形态(即正态分布、对数正态分布和Gamma分布),因此,采用基于切比雪夫不等式的非参数方法计算该铬污染场地调查数据的95%UCL(置信区间上限值),确定w(TCr)和w〔Cr(Ⅵ)〕的暴露值分别为0.285 6%和0.022 7%.

     

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出版历程
  • 收稿日期:  2012-08-17
  • 修回日期:  2012-11-13
  • 刊出日期:  2013-01-25

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