Air Quality Criteria for Lead (Final).

Note: EPA has updated this document, but this version is provided as a courtesy to the public as a matter of public record.

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The Air Quality Criteria documents evaluate and assesse scientific information on the health and welfare effects associated with exposure to various concentrations of lead in ambient air. The literature through 1985 has been reviewed thoroughly for information relevant to air quality criteria, although the documents are not intended as a complete and detailed review of all literature pertaining to lead. An attempt has been made to identify the major discrepancies in our current knowledge and understanding of the effects of these pollutants. Although the documents are principally concerned with the health and welfare effects of lead, other scientific data are presented and evaluated in order to provide a better understanding of the pollutant in the environment. To the end, the documents include chapters that discuss: the chemistry and physics of the pollutant; analytical levels; atmospheric chemistry and dispersion modeling; effects on vegetation; and respiratory, physiological, toxicological, clinical and epidemiological aspects of human exposure.

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