Photodegradation of the herbicide glyphosate in water

Details are given of laboratory experiments to determine the effects of artificial light and sunlight on the weedkiller, glyphosate, in de-ionized water and in polluted lake water, both with and without added silty clay loam. Long-wave light had no photodegrading effect on glyphosate, but ultraviole...

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Published in:Bulletin of environmental contamination and toxicology 1986-12, Vol.36 (5), p.723-729
Main Authors: LUND-HØIE, K, FRIESTAD, H. O
Format: Article
Language:English
Subjects:
Animal, plant and microbial ecology
Applied ecology
Biological and medical sciences
Chemical control
Ecotoxicology, biological effects of pollution
Fresh water environment
Fundamental and applied biological sciences. Psychology
Glycine - analogs & derivatives
Glyphosate
Herbicides
Mercury
Parasitic plants. Weeds
Photochemistry
Phytopathology. Animal pests. Plant and forest protection
Sodium
Sunlight
Water
Water Pollutants
Weeds
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cited_by cdi_FETCH-LOGICAL-c439t-2a1065d5d2fb1c64e0706142545d04af973fc34fccf3d514105e80c8e07dd1db3
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description Details are given of laboratory experiments to determine the effects of artificial light and sunlight on the weedkiller, glyphosate, in de-ionized water and in polluted lake water, both with and without added silty clay loam. Long-wave light had no photodegrading effect on glyphosate, but ultraviolet radiation had a marked effect. The half-live of glyphosate exposed to ultraviolet radiation was about 4 days for an initial concentration of 1 ppm and 3-4 weeks for an initial concentration of 2000 ppm. Photodegradation was more rapid in de-ionized water than in polluted water, and was retarded by the presence of clay. There was evidence that some glyphosate was adsorbed on the sediment.
doi_str_mv 10.1007/bf01623575
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ispartof Bulletin of environmental contamination and toxicology, 1986-12, Vol.36 (5), p.723-729
issn 0007-4861
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source Springer Nature - Connect here FIRST to enable access
subjects Animal, plant and microbial ecology
Applied ecology
Biological and medical sciences
Chemical control
Ecotoxicology, biological effects of pollution
Fresh water environment
Fundamental and applied biological sciences. Psychology
Glycine - analogs & derivatives
Glyphosate
Herbicides
Mercury
Parasitic plants. Weeds
Photochemistry
Phytopathology. Animal pests. Plant and forest protection
Sodium
Sunlight
Water
Water Pollutants
Weeds
title Photodegradation of the herbicide glyphosate in water
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