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首页> 外文期刊>Environmental toxicology and chemistry >SPATIAL AND TEMPORAL EVALUATION OF METAL CONCENTRATIONS IN SOILS AND SEDIMENTS FROM NEW ORLEANS, LOUISIANA, USA, FOLLOWING HURRICANES KATRINA AND RITA
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SPATIAL AND TEMPORAL EVALUATION OF METAL CONCENTRATIONS IN SOILS AND SEDIMENTS FROM NEW ORLEANS, LOUISIANA, USA, FOLLOWING HURRICANES KATRINA AND RITA

机译:飓风卡特里娜和丽塔之后美国新奥尔良,路易斯安那州土壤和沉积物中金属浓度的时空评估

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摘要

During January 2006, soil and sediment samples from 75 sites in the New Orleans (LA, USA) area were collected and tested for 26 inorganic elements. The study design was intended to provide a spatial pattern of metal concentrations within the city following hurricanes Katrina and Rita. The sampling design included four transects that traversed the city in a north-south direction and three transects that traversed the city in an east—west direction. Contaminant concentrations were determined at multiple sites within each transect and compared to U.S. Environmental Protection Agency soil screening criteria pertaining to human health. Concentrations of Pb and As exceeded the criteria indiscriminately throughout the city. Of the 75 sites, 14 (19%) exceeded the soil screening criteria for Pb, and 73 (97%) exceeded the criteria for As. Forty-three of the 75 sites coincided with a previous sampling event in October 2005. Metal concentrations were evaluated for temporal comparisons using a pair sampled t test. Arsenic concentrations differed significantly over time, but Pb concentrations did not.
机译:在2006年1月,收集了来自新奥尔良(美国洛杉矶)地区75个站点的土壤和沉积物样本,并测试了26种无机元素。该研究设计旨在提供飓风卡特里娜飓风和丽塔飓风过后城市中金属浓度的空间格局。抽样设计包括从南北方向横穿城市的四个样带和从东西向横贯城市的三个样带。在每个样带内的多个位置确定污染物浓度,并将其与美国环境保护署有关人类健康的土壤筛查标准进行比较。在整个城市中,铅和砷的浓度都超过了标准。在这75个地点中,有14个(19%)超过了铅的土壤筛选标准,而73个(97%)超过了As的土壤筛选标准。 75个站点中有43个站点与2005年10月的一次采样事件相吻合。使用配对采样t检验对金属浓度进行了时间比较。砷的浓度随时间变化很大,但铅的浓度没有变化。

著录项

  • 来源
    《Environmental toxicology and chemistry》 |2007年第10期|2108-2114|共7页
  • 作者单位

    Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, Box 41163, Lubbock, Texas 79409-1163, USA TraceAnalysis, 6701 Aberdeen Avenue, Lubbock, Texas 79424, USA;

    Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, Box 41163, Lubbock, Texas 79409-1163, USA;

    The Institute of Environmental and Human Health Field Station, Jeffersonian Institute, P.O. Box 764, Jefferson, Texas 75657, USA;

    Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, Box 41163, Lubbock, Texas 79409-1163, USA;

    Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, Box 41163, Lubbock, Texas 79409-1163, USA;

    Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, Box 41163, Lubbock, Texas 79409-1163, USA;

    Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, Box 41163, Lubbock, Texas 79409-1163, USA;

    TraceAnalysis, 6701 Aberdeen Avenue, Lubbock, Texas 79424, USA;

    Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, Box 41163, Lubbock, Texas 79409-1163, USA;

    Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, Box 41163, Lubbock, Texas 79409-1163, USA;

    Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, Box 41163, Lubbock, Texas 79409-1163, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    arsenic; lead; soil screening criteria; transects;

    机译:砷;铅;土壤筛选标准;样条;

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