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Significance of Pesticides in Water Supplies
Since World War II, the pesticide chemical industry has undergone a revolution. Before the war, the principal insecticides were either inorganic compounds, such as the arsenic compounds, or naturally occurring organic compounds, such as pyrethrum, rotenone, and nicotine. Herbicides were primarily copper sulfate, arsenic compounds, and other inorganic materials. The introduction of DDT and 2, 4‐D marked the start of a tremendous surge in the development and use of new products that have had far‐reaching effects on public health and agriculture. Several hundred pesticide chemicals are now in use, and the number of products and formulations registered under the federal Insecticide, Fungi‐ cide, and Rodenticide Act exceeds 90,000. Water utilities have not felt much impact from these developments to date, but concern is expressed in many quarters about the water quality problems that these new chemicals may cause. It is virtually certain that any chemical in widespread use will get into streams in some concentration. Some of these chemicals are quite resistant to biologic attack and quite toxic to humans. Comparatively little is known about ways to remove these chemicals from water. There is a need to anticipate the problems that may develop and to find solutions for these problems. Pesticide production and use is discussed, along with concentration of pesticides in water, fate of pesticides, toxicity of pesticides, taste and odor, pesticides in water supply practice, and action taken by utilities.
Significance of Pesticides in Water Supplies
Since World War II, the pesticide chemical industry has undergone a revolution. Before the war, the principal insecticides were either inorganic compounds, such as the arsenic compounds, or naturally occurring organic compounds, such as pyrethrum, rotenone, and nicotine. Herbicides were primarily copper sulfate, arsenic compounds, and other inorganic materials. The introduction of DDT and 2, 4‐D marked the start of a tremendous surge in the development and use of new products that have had far‐reaching effects on public health and agriculture. Several hundred pesticide chemicals are now in use, and the number of products and formulations registered under the federal Insecticide, Fungi‐ cide, and Rodenticide Act exceeds 90,000. Water utilities have not felt much impact from these developments to date, but concern is expressed in many quarters about the water quality problems that these new chemicals may cause. It is virtually certain that any chemical in widespread use will get into streams in some concentration. Some of these chemicals are quite resistant to biologic attack and quite toxic to humans. Comparatively little is known about ways to remove these chemicals from water. There is a need to anticipate the problems that may develop and to find solutions for these problems. Pesticide production and use is discussed, along with concentration of pesticides in water, fate of pesticides, toxicity of pesticides, taste and odor, pesticides in water supply practice, and action taken by utilities.
Significance of Pesticides in Water Supplies
Woodward, Richard L. (author)
Journal ‐ American Water Works Association ; 52 ; 1367-1372
1960-11-01
6 pages
Article (Journal)
Electronic Resource
English
Insecticides , Inorganic Compounds , Pesticides , Odor , Taste , Water Quality , Chemicals , Water Supply , Organics , Herbicides , Utilities , Toxicity , Public Health
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