Dogs as indicators of urban lead distribution |
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Authors: | Emil Kucera |
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Institution: | (1) Department of Environment and Workplace Safety and Health, Winnipeg, Province of Manitoba, Canada |
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Abstract: | Lead (Pb) concentrations in 398 samples of dog whole blood were determined by atomic absorption method. All samples were within the normal range of values reported in literature, 95% of the samples had <8.0 g/100 ml lead. The correlation between blood lead level and the volume of traffic was highly significant. About 11% of the variability in concentration can be explained by the traffic flows near the animal's home. The findings confirm that traffic contributes a significant portion of the total inhaled lead. The use of dogs as environmental lead monitors is discussed. It is concluded that in non-occupational situations a survey of lead in blood of dogs may serve as a feasible, low-cost alternative to large-scale surveys of humans. |
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