更好地表征土壤中的砷和铬:一个实地规模的例子

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 1997-07-01 DOI:10.1080/15320389709383573

J. Hale, A. Foos, J. S. Zubrow

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引用次数: 14

摘要

土壤中砷和铬的表征(以及场地修复决策)通常基于总浓度结果和美国环保署TCLP结果。通过应用地质统计学、选择性提取实验室程序和土壤矿物学的X射线衍射测定来进一步评估土壤介质中的砷和铬，提供了有价值的附加信息。砷和铬污染的土壤在一个化学生产设施代表了该方法应用的一个案例研究。从0到6英尺深，土壤的特征是斑驳的，黄褐色的，淤泥和粘土带细砂，向下分级为浅黄褐色，微砂，云母，细砂，以小的，灰色的，叶状的，岩屑碎片和白云母为主。总砷和总铬集中在上层粉砂和粘土中，但更容易从下层砂土中浸出，这表明土壤成分的分配是基于土壤成分的。选择性提取数据表明砷是主要的…

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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BETTER CHARACTERIZATION OF ARSENIC AND CHROMIUM IN SOILS: A FIELDSCALE EXAMPLE

The characterization of arsenic and chromium in soil (and site remediation decisions) is commonly based on total concentration results and U.S. EPA TCLP results. Further evaluation of arsenic and chromium within the soil media by application of geostatistlcs, selective extraction laboratory procedures, and X‐ray diffraction determination of soil mineralogy provides valuable additional information. Arsenic‐and chromium‐contaminated soils at a chemical manufacturing facility represent a case study for application of this approach. From 0 to 6 ft deep, the soils are characterized by mottled, yellowish brown, silt and clay with fine sand, grading downward into light yellowish brown, sllty, micaceous, fine sand, dominated by small, gray, foliated, lithic fragments and muscovite. Total arsenic and chromium are concentrated in the upper silt and clay, but are more readily leached from the lower sandy soil, suggesting partitioning based on soil composition. Selective extraction data Indicate that arsenic is prima...

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.