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Lead-based paint in the United States
Lead-based paint in the United States resulted in a court case against the Lead Industries Association. Due in great part to studies carried out by Philip J. Landrigan, paint containing more than 0.06% (by weight of dried product) lead was banned for residential use in the United States in 1978 by the U.S. Consumer Product Safety Commission (16 Code of Federal Regulations CFR 1303).
Lead has long been considered to be a harmful environmental pollutant. In the July 1904 edition of its monthly publication, Sherwin-Williams reported the dangers of paint containing lead, noting that a French expert had deemed lead paint "poisonous in a large degree, both for the workmen and for the inhabitants of a house painted with lead colors." In late 1991, the Secretary of the Department of Health and Human Services Louis Wade Sullivan called lead the "number one environmental threat to the health of children in the United States." Humans are exposed to lead in many ways. These can be through air, drinking water, food, contaminated soil, deteriorating paint, and dust. Airborne lead enters the body by breathing or swallowing lead particles or dust once it has settled.
Old lead-based paint is the most significant source of lead exposure in the U.S.〔 Most homes built before 1960 contain heavily leaded paint. Some homes built as recently as 1978 may also contain lead paint.
The U.S. Centers for Disease Control and Prevention’s (CDC) National Center for Health Statistics monitors blood lead levels in the United States.〔 Experts use a new level based on the U.S. population of children ages 1-5 years who are in the top 2.5% of children when tested for lead in their blood (when compared to children who are exposed to more lead than most children). Currently that is 5 micrograms per deciliter of lead in blood.〔
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抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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