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Degradation as a Loss Mechanism in the Fate of A-Hexachlorocyclohexane in Arctic Watersheds

Article Abstract:

Summary of the A-HCH ER results from detailed samplings taken during the final year of the 1992-1994 Amituk Lake study, and later field investigations. These reports focus on agricultural and industrial chemicals contamination of Canadian arctic ecosystems.

Author: Helm, Paul A., Diamond, Miriam L., Semkin, Ray, Bidleman, Terry F.
Publisher: American Chemical Society
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 2000
Canada, Science & research, Industrial Chemicals, Basic Chemical Manufacturing, CHEMICALS AND ALLIED PRODUCTS, Agricultural Chemicals, Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing, Water Pollution by Geographic Location, Statistical Data Included, Natural resources, Water pollution, Contamination, Biotic communities, Technical, Arctic research

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Toxaphene, chlordane, and other organchlorine pesticides in Alabama air

Article Abstract:

In this study, air samples in Alabama were gathered in January-October 1996 and May 1997 to review the seasonal variations of toxaphene and other OC pesticides. The study is broken down into an introduction, a discussion of the experiment and its results. Various tables and graphs accompany the article.

Author: Bidleman, Terry F., Harner, Tom, Jantunen, Liisa M. M., Parkhurst, William J.
Publisher: American Chemical Society
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 2000
United States, Air Pollution Control, Pesticide and Other Agricultural Chemical Manufacturing, Pesticides & Other Ag Chemicals, Pollutants produced & recycled, Agricultural chemicals, not elsewhere classified, Toxaphene, Alabama, Pollution, Chemical industry, Air pollution, Pesticides industry

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Enantioselective breakdown of alpha-hexachlorocyclohexane in a small Arctic Lake and its watershed

Article Abstract:

A study was conducted to analyze enantioselective degradation of alpha-hexachlorocyclohexane (alpha-HCH) in the Arctic by running water and snow samples from the region under gas chromatography. Enantiomeric ratios (ER) for alpha-HCH was agreed with the theoretical ER of 1.00 for intact alpha-HCH. Snow samples registered an ER of 0.98, with a deviation of plus or minus three. This is attibuted to active nonenzymatic degradation of water in Amituk Lake. The results suggests that the Arctic contains an efficient system of microbial degradation.

Author: Semkin, Ray, Bidleman, Terry F., Falconer, Renee L., Gregor, Dennis J., Teixeira, Camilla
Publisher: American Chemical Society
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1995
Biodegradation, Organochlorine compounds, Organic chlorine compounds

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Subjects list: Research, Environmental aspects, Pollution control industry, Arctic regions
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