Technical protocol for evaluating natural attenuation of chlorinated solvents in groundwater; Revision 1

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Authors:Wiedemeier, T. H.; Wilson, J. T.; Hansen, J. E.; Chapelle, F. H.; Swanson, M. A.
Corporate Authors:U. S. Air Force, Center for Environmental Excellence, Brooks AFB, TX, performer
Source:396p. Availability: National Technical Information Service, (703)605-6000, order number AD-A324 060/3NEG, Springfield, VA, United States
Publication Date:1996
Note:In English. Draft report
Summary:The term "Natural Attenuation" refers to naturally-occurring processes in soil and groundwater environments that act without human intervention to reduce the mass, toxicity, mobility, volume, or concentration of contaminants in those media. These in-situ processes include biodegradation, dispersion, dilution, adsorption, volatilization, and chemical or biological stabilization or destruction of contaminants. In practice, natural attenuation also is referred to by several other names, such as intrinsic remediation, intrinsic bioremediation, natural restoration, or passive bioremediation. The goal of any site characterization effort is to understand the fate and transport of the contaminants of concern over time in order to assess any current or potential threat to human health or the environment. Natural attenuation processes, such as biodegradation, can often be dominant factors in the fate and transport of contaminants.
Subjects:Adsorption; Attenuation; Biodegradation; Chlorinated hydrocarbons; Controls; Decontamination; Ground water; Halogenated hydrocarbons; Organic compounds; Pollutants; Pollution; Remediation; Soils; Solvents; Toxic materials; Toxicity; Transport; Volatilization; Water
Record ID:1999000193
Copyright Information:GeoRef, Copyright 2018 American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States
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