Lead poisoning in cattle and horses in the vicinity of a smelter
An outbreak of lead poisoning near a smelter is described. Fatalities in horses and cattle occurred. Data presented concern the pattern and degree of contamination in animals and vegetation. The daily intake of approximately 6-7 mg. Pb/kg appears to be close to the minimum which eventually gives rise to signs of poisoning in cattle. Horses appear to be somewhat more susceptible. Even under conditions of chronic lead intake, the syndrome in cattle generally is acute or peracute. The concentration of lead in milk is linearly related to the concentration in blood cells at a ratio Pb cells/Pb milk of approximately 23. Evidence is presented indicating that relief of the burden of lead in tissues with EDTA therapy following chronic intake of the metal is a hazardous procedure. Data gathered by the Minnesota State Health Department during the episode indicate that people in the area and their water supply were not affected. 31 references.
- Research Organization:
- Univ. of Minnesota, St. Paul
- OSTI ID:
- 6370772
- Journal Information:
- Ann. N.Y. Acad. Sci.; (United States), Journal Name: Ann. N.Y. Acad. Sci.; (United States) Vol. 111; ISSN ANYAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALFALFA
AMINO ACIDS
ANIMALS
BACTERIA
BIOLOGICAL ACCUMULATION
CARBOXYLIC ACIDS
CATTLE
CEREALS
CHELATING AGENTS
CHRONIC EXPOSURE
CLOVER
DATA
DEPOSITION
DOMESTIC ANIMALS
EDTA
ELEMENTS
EXPERIMENTAL DATA
FALLOUT
FALLOUT DEPOSITS
GASEOUS WASTES
GRASS
HORSES
INFORMATION
LEAD
LEGUMINOSAE
MAIZE
MAMMALS
METALS
MICROORGANISMS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
PLANTS
RHIZOBIUM
RUMINANTS
SMELTERS
TOXICITY
VERTEBRATES
WASTES