Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Hazard ranking system issue analysis : toxicity as a ranking factor /
Author DeSesso, John M.
CORP Author United States. Environmental Protection Agency.
Publisher MITRE Corp.,
Year Published 1987
Report Number MTR-86W128; EPA 540-R-87-011
OCLC Number 17660125
Subjects Hazardous substances--Standards--United States. ; Hazardous substances--Toxicology. ; Hazardous substances--Toxicity testing.
Additional Subjects Hazardous waste
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJAM  TD811.5.H183 Region 3 Library/Philadelphia, PA 01/01/1988
EJBD ARCHIVE EPA 540-R-87-011 Headquarters Library/Washington,DC 11/13/2013
EJBD  EPA 540-R-87-011 Headquarters Library/Washington,DC 04/30/2014
EKBD  MITRE-86W128 Research Triangle Park Library/RTP, NC 01/01/1988
EMBD  MTR-86W128 NRMRL/GWERD Library/Ada,OK 04/15/1994
ENAM  TD193.5.D4 1987 Region 7 IRC Library/Kansas City,KS 12/06/1996
ERAM  TD193.5.D4 1987 HWC Region 9 Library/San Francisco,CA 01/01/1988
ESAD  EPA 0192 Region 10 Library/Seattle,WA 01/01/1988
Collation ix, 163 p. ; 28 cm.
"August 1987"--T.p. "Sponsor: U.S. Environmental Protection Agency"--T.p. "Contract no.: EPA 68-01-7054"--T.p. "MTR-86W128"--T.p. EPA 540-R-87-011, per NSCEP's publication title list. Bibliography: p. 73-76.
Contents Notes
This report, prepared for the Office of Emergency and Remedial Response (OERR) of the Environmental Protection Agency, recommends modifications to the toxicity factor of the EPA Hazard Ranking System (HRS) that incorporate: (1) an assessment of the capacity of a substance to cause short- or long-term adverse effects, cancer, birth defects, or changes in genetic material; (2) a more accurate assessment of the potential hazard of substances by considering the toxicity of each substance for each expected mode of exposure to humans; and (3) more discrimination in the ranking of toxic substances and waste sites. This report critiques the current HRS toxicity factor and eight other ranking systems selected as representative of the methodologies used to discern the relative dangers of substances. This report then presents the rationale and derivation of the suggested modifications to the HRS toxicity factor and presents the evaluation of 30 substances found at National Priorities List (NPL) sites as examples of the proposed scoring methodology.