| Main Title |
Hazard ranking system issue analysis : alternative methods for ranking the persistence of hazardous substances in surface water / |
| Author |
Wang, Ming P.
|
| CORP Author |
United States. Environmental Protection Agency. |
| Publisher |
MITRE Corp., |
| Year Published |
1987 |
| Report Number |
MTR-86W172; EPA 540-R-87-016 |
| OCLC Number |
17660035 |
| Subjects |
Hazardous wastes
|
| Additional Subjects |
Hazardous waste
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EIAD |
EPA-540/2-87-503 |
|
Region 2 Library/New York,NY |
05/30/2003 |
| EJAM |
TD811.5.H184 |
|
Region 3 Library/Philadelphia, PA |
01/01/1988 |
| EJBD |
EPA 540-R-87-016 |
|
Headquarters Library/Washington,DC |
04/30/2014 |
| ELBD |
EPA 540-2-87-503 |
|
AWBERC Library/Cincinnati,OH |
04/06/2012 |
| ELBD ARCHIVE |
EPA 540-R-87-016 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| EMBD |
MTR-86W172 |
|
NRMRL/GWERD Library/Ada,OK |
04/15/1994 |
| ERAM |
TD193.5.W3 1987 |
HWC |
Region 9 Library/San Francisco,CA |
01/01/1988 |
| ESAD |
EPA 0196 |
|
Region 10 Library/Seattle,WA |
01/01/1988 |
|
| Collation |
viii, 156 p. : map, charts ; 28 cm. |
| Notes |
"November 1987"--T.p. "MTR-86W172"--T.p. "Sponsor: U.S. Environmental Protection Agency"--T.p. "Contract no.: EPA 68-01-7054"--T.p. EPA 540-R-87-016, per NSCEP's publication title list. Includes bibliographical references. |
| Contents Notes |
This report addresses possible modifications to the persistence ranking method in the current HRS to better reflect the environmental attenuation potential of hazardous substances in surface water. The joint effect of several important processes, including biodegradation, hydrolysis, photolysis, volatilization, free-radical oxidation, and sorption, is evaluated using steady-state models for idealized water bodies. Two alternatives are proposed which rank the persistence of substances according to the expected change of substance concentration over the HRS target distance limit. Alternative I considers all six processes mentioned above. Its application requires field measurements to quantify the fraction of substance sorbed and the subsequent sedimentation loss of the sorbed chemicals. Alternative II considers all processes except sorption; its application does not require field measurements. In streams and rivers, the majority of substances are expected to be ranked as persistent (i.e., less than 50 percent reduction in concentration) unless sedimentation loss of the sorbed substances is significant. In general, substances are expected to be less persistent in lakes and reservoirs than in streams and rivers because of the longer reaction time in lakes and reservoirs and because lakes and reservoirs are good sedimentation traps. |
| Place Published |
McLean, Va. |
| Corporate Au Added Ent |
United States. Environmental Protection Agency. |
| Alternate Title |
Alternative methods for ranking the persistence of hazardous substances in surface water |
| PUB Date Free Form |
1987 |
| Ti Tra Differently |
Alternative methods for ranking the persistence of hazardous substances in surface water. |
| BIB Level |
m |
| Document Type |
BC |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20140422132310 |
| Language |
eng |
| Origin |
OCLC |
| Type |
CAT |
| OCLC Rec Leader |
02709cam 2200349Ka 45020 |
