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I advised: the
Agency for Toxic Substances & Disease
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Registry (ATSDR)
in the US had in 1995 determined
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lead to be the
top priority substance in public health
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terms so why not
link to the ATSDR website instead?
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CERCLA (developed
under the Comprehensive
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Environmental
Response, Compensation and Liability
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Act)
Priority List of Hazardous Substances places 4
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heavy metals
(all of which are found in ceiling dust)
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in the top 7
of 275 ranked priority toxic substances.
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