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PRIORITY LIST FOR HAZARDOUS SUBSTANCES REVISED


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From: PNEAC Webmaster (pneac@istc.illinois.edu)
Date: Mon Nov 29 1999 - 10:42:31 CST


EPA and the ATSDR are revising the Priority List of Hazardous Substances.
This list includes substances most commonly found at facilities on the
CERCLA National Priorities List (NPL) which have been determined to be of
greatest concern to public health at or around these NPL hazardous wastes.
The agencies have developed and are making available a revised CERCLA
Priority List of 275 Hazardous Substances, based on the most recent
information available to ATSDR and EPA. Each substance on the priority list
is a candidate to become the subject of a toxicological profile prepared by
ATSDR and subsequently a candidate for the identification of priority data
needs.

A total of 815 candidate substances were ranked with the current algorithm.
Of these candidates, the 275 substances on the priority list may become the
subject of toxicological profiles in the future. The top 25 substances on
the 1999 Priority List of Hazardous Substances in order of priority are:

Arsenic
Lead
Mercury
Vinyl Chloride
Benzene
Polychlorinated Biphenyls
Cadmium
Benzo(A)Pyrene
Polycyclic Aromatic Hydrocarbons
Benzo(B)Fluoranthene
Chloroform
Ddt, P,P'-
Aroclor 1260
Aroclor 1254
Trichloroethylene
Chromium, Hexavalent
Dibenzo(A,H)Anthracene
Dieldrin
Hexachlorobutadiene
Dde, P,P'-
Creosote
Chlordane
Benzidine
Aldrin
Aroclor 1248

Gary Jones
Graphic Arts Technical Foundation
200 Deer Run Road
Sewickley, PA 15143
412/741-6860 x608 - Phone
412/741-2311 - Fax


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