title: Chlorinated hydrocarbon insecticides in Colorado beef cattle serum--a pilot environmental monitoring system.
abstract: A pilot project was initiated to test an existing animal disease surveillance system for use in monitoring environmental pollutants. Eleven chlorinated hydrocarbon insecticides were assayed to provide an indication of environmental contamination. A total of 241 bovine serum samples from 53 Colorado beef ranches was tested; 123 samples (51%) were found to contain detectable concentrations of 1 or more of 11 chlorinated hydrocarbons. There were a total of 203 occurrences of a compound being found at a level exceeding the detection limit. Heptachlor, heptachlor epoxide, lindane, and oxychlordane were the insecticides detected most frequently in bovine sera. This pilot study supports the use of domestic food-producing animals as sentinels of environmental contamination with insecticides.
authors.affiliation: Department of Environmental Health, College of Vet. Medicine & Biomed. Science, Colorado State University, Fort Collins 80523.
authors.forename: M D
authors.initials: MD
authors.lastname: Salman
authors.forename: J S
authors.initials: JS
authors.lastname: Reif
authors.forename: L
authors.initials: L
authors.lastname: Rupp
authors.forename: M J
authors.initials: MJ
authors.lastname: Aaronson
mesh_terms: D000818:Animals; D002417:Cattle; D002849:Chromatography, Gas; D003120:Colorado; D004784:Environmental Monitoring / Q000379:methods*; D004785:Environmental Pollutants / Q000032:analysis*; D006843:Hydrocarbons, Chlorinated; D007306:Insecticides / Q000097:blood*; D010865:Pilot Projects
chemical_list: D004785:Environmental Pollutants; D006843:Hydrocarbons, Chlorinated; D007306:Insecticides