Gardening On Lead And Arsenic Contaminated Soils
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Category : Hobbies » Gardening
Gardening on lead- or arsenic-contaminated . dusts from smelters and mines, hobby activities (e.g., pottery glazes; soldering; .
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Content Summary :
The chemical elements lead and arsenic are potentially toxic to people. Although lead and arsenic occur naturally in the environment, their concentrations have increased, and they havebecome more widely distributed because of human activities. Societal concerns about excessivehuman exposure to lead and arsenic prompted development of new products and practices toreduce or eliminate the many industrial and residential uses of the two elements. The principalhistorical sources of lead (leaded gasoline, lead-based paint) and arsenic (arsenical pesticides)are now outlawed in the United States. As a result, overall human exposure to lead and arsenic ismuch lower than in the past; however, the legacy of environmental contamination because ofpast lead and arsenic use is taking on renewed importance. Recent scientific research suggeststhat human health, especially for infants and small children, may be adversely affected byexposure to lower levels of lead and arsenic than previously believed. Hence, taking additionalsteps to reduce human exposure to the remaining sources of lead and arsenic may be warranted.
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