Download PDF by National Research Council, Division on Earth and Life: Animals as Sentinels of Environmental Health Hazards

By National Research Council, Division on Earth and Life Studies, Commission on Life Sciences, Board on Environmental Studies and Toxicology, Committee on Animals as Monitors of Environmental Hazards

ISBN-10: 0309040469

ISBN-13: 9780309040464

Learning animals within the surroundings could be a reasonable and hugely necessary method of settling on unknown chemical contaminants sooner than they reason human damage. "Animals as Sentinels of Environmental future health risks" offers an summary of animal-monitoring courses, together with distinctive case experiences of the way animal illnesses - resembling the results of DDT on wild chicken populations - have led researchers to the resources of human overall healthiness risks. The authors research the parts and features required for a good animal-monitoring software, they usually assessment a variety of current courses, together with in situ examine, the place an animal is put in a common environment for tracking reasons.

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On wildlife populations). , 1963). In the flurry of public attention and additional research in the aftermath of Silent Spring, scientists were able to demonstrate further that persistent organochlorine compounds, even when used judiciously, had the potential to cause bird populations to decline and even vanish through the chemical induction of reproductive dysfunctions. , osprey, Cooper's hawk, and various other fisheating birds). Thus, the bulk of the evidence that initially supported the need for a ban on DDT was related to effects on wildlife, and only later were potential hazards to human health identified; both were cited as primary bases for the cancellation of DDT uses in the United States in 1972 (Federal Register, June 14, 1972).

Fish living in contaminated environments might develop tumors, most commonly in the liver, and so have been used as indicators of contamination. , 1987). Fish can respond not only to acutely toxic conditions in the water, but also to the presence of chemical carcinogens. Fish develop neoplasms in response to many known mammalian carcinogens (NCI, 1984; Couch and Harshbarger, 1985). Studies have been conducted with freshwater and brackish-water species to evaluate their sensitivity to carcinogens.

Water contamination is best monitored with wholly aquatic organisms. Populations of fish and other aquatic species sometimes are absent from an otherwise suitable habitat when toxic chemicals are present. Fish living in contaminated environments might develop tumors, most commonly in the liver, and so have been used as indicators of contamination. , 1987). Fish can respond not only to acutely toxic conditions in the water, but also to the presence of chemical carcinogens. Fish develop neoplasms in response to many known mammalian carcinogens (NCI, 1984; Couch and Harshbarger, 1985).

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Animals as Sentinels of Environmental Health Hazards by National Research Council, Division on Earth and Life Studies, Commission on Life Sciences, Board on Environmental Studies and Toxicology, Committee on Animals as Monitors of Environmental Hazards


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