"Natural" Remediation of DDT, PCBs Debated.
نویسنده
چکیده
The dispute over chlorinated contaminant cleanups is heating up amid claims about benefits of natural processes.
منابع مشابه
Chemical Degradation of Chlorinated Organic Pollutants for In Situ Remediation and Evaluation of Natural Attenuation
Chlorinated organic compounds, prevalent contaminants found in the geo-environment, pose an ecological risk even at trace concentrations. More volatile chlorinated compounds such as VOCs (volatile organic compounds) have been detected in urban areas and industrial zones because of the use of these compounds as components of industrial solvents and both raw and intermediate synthetic products. C...
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BACKGROUND Polychlorinated biphenyls (PCBs) and dichlorodiphenyltrichloroethane (DDT) are persistent, bioaccumulative, and toxic pollutants that were broadly used in the United States until the 1970s. Common exposure to PCBs, DDT, and dichlorodiphenyldichloroethylene (DDE), the most stable metabolite of DDT, may influence children's neurodevelopment, but study results are not consistent. OBJE...
متن کاملValidation and application of an analytical method for determination of Persistent Organic Pollutants in Rainbow trout (Onchorhynchus mykiss) collected from Tehran retail markets
Persistent organic pollutants are a wide group of toxic and dangerous compounds. These organic compounds are chemically and physically stable even beams. In this study an analysis method for simultaneous determination of 18 persistent organic pollutants including eleven Organochlorine pesticides (OCPs): HCB, Dieldrin, Methoxychlor, α-, ϒ-Chlordane, α-, β-Endosulfan and o,p’-DDE, p,p’-DDE, o,p’-...
متن کاملAdsorption of DDT and PCB by Nanomaterials from Residual Soil
This paper presents the findings of a study on adsorption of dichlorodiphenythreechloroethen (DDT) and polychlorinated biphenyls (PCBs) on three nanomaterials including Multi walled Carbon Nanotube (MWNT), nano-clay and nano-alumina. DDT and PCBs are of significant concern due their high toxicity and long environmental half-lives. Experiments were conducted using batch adsorption procedures at ...
متن کاملEffects of Soil Oxygen Conditions and Soil pH on Remediation of DDT-contaminated Soil by Laccase from White Rot Fungi
High residues of DDT in agricultural soils are of concern because they present serious threats to food security and human health. This article focuses on remediation of DDT-contaminated soil using laccase under different soil oxygen and soil pH conditions. The laboratory experiment results showed significant effects of soil oxygen conditions and soil pH on remediation of DDT-contaminated soil b...
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عنوان ژورنال:
- Environmental science & technology
دوره 32 15 شماره
صفحات -
تاریخ انتشار 1998