Release of Chemicals from Contaminated Soils

IF 1.6 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES

Soil & Sediment Contamination Pub Date : 1998-01-01 DOI:10.1080/10588339891334492

D. Williamson, R. Loehr, Y. Kimura

引用次数: 52

Abstract

At sites that contain contaminated soils, there can be questions about the magnitude of risk posed by the chemicals in the soils and about the cleanup levels that should be achieved. Knowledge about the rate of release of chemicals is important to answers to such questions. This article: (1) describes a laboratory protocol to obtain rate of release information for chemicals in soils, and (2) provides estimates of the rate of release of individual polyaromatic hydrocarbon (PAH) compounds from several manufactured gas plant (MGP) site soils. The data were analyzed using an empirical two-site model. Different fractions of PAH were released rapidly from these soils. For one soil, this fraction was less than 20%, for others, the fraction ranged from 36 to 85%. The first-order rate constant (k2) of PAH released during the slow phase of chemical release ranged from 0.0001 to 0.01 per hour.

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受污染土壤中化学物质的释放

在含有受污染土壤的场地，可能会对土壤中的化学物质构成的风险程度以及应该达到的清理水平提出疑问。了解化学物质的释放速度对于回答这些问题很重要。本文:(1)描述了一种获得土壤中化学物质释放率信息的实验室方案，(2)提供了几个人造气厂(MGP)场地土壤中单个多芳烃(PAH)化合物释放率的估计。数据分析采用经验二元模型。不同组分的多环芳烃迅速从土壤中释放出来。在一种土壤中，这一比例小于20%，在其他土壤中，这一比例在36% ~ 85%之间。化学释放缓慢期多环芳烃释放的一级速率常数k2为0.0001 ~ 0.01 / h。

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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来源期刊

Soil & Sediment Contamination 环境科学-环境科学

CiteScore

4.20

自引率

10.00%

发文量

审稿时长

2.2 months

期刊介绍： When it comes to assessing and mitigating contaminated soils and sediments, there is no substitute for having the very latest tools, techniques and methodologies at your fingertips to help you deal with these issues efficiently and cost-effectively. This is just the kind of essential expertise you’ll only find in Soil and Sediment Contamination . This internationally, peer-reviewed publication focuses on soil and sediment contamination from: -Sludges- Petroleum- Petrochemicals- Chlorinated hydrocarbons- Pesticides- Lead and other heavy metals. Get detailed descriptions of all the latest and most efficient offsite and in situ remediation techniques, strategies for assessing health effects and hazards, and tips for dealing with everyday regulatory and legal issues. With the state-of-the-art tools that Soil and Sediment Contamination provides, you can successfully assess, mitigate, and solve both rural and urban soil contamination problems as efficiently and economically as possible.