| Main Title |
1999 Update of ambient water quality criteria for ammonia. |
| CORP Author |
Environmental Protection Agency, Washington, DC. Office of Water. |
| Publisher |
U.S. Environmental Protection Agency, Office of Water, |
| Year Published |
1999 |
| Report Number |
EPA 822-R-99-014 |
| Stock Number |
PB2005-109112 |
| OCLC Number |
43361955 |
| Subjects |
Water quality--Standards--United States ;
Ammonia--Environmental aspects--United States
|
| Additional Subjects |
Ammonia ;
Water pollution ;
Estuaries ;
Exposure ;
Standards ;
Toxicity ;
Aquatic animals ;
Aquatic plants ;
Water pollution effects(Animals) ;
Water pollution effects(Plants) ;
Clean Water Act ;
Ecosystems ;
Toxic substances
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EHAD |
EPA/822-R-99-014 |
|
Region 1 Library/Boston,MA |
01/26/2001 |
| EJED |
EPA 822/R-99-014 |
|
OCSPP Chemical Library/Washington,DC |
09/22/2000 |
| EKCR |
EPA-822-R-99-014 |
|
CEMM/GEMMD Library/Gulf Breeze,FL |
05/28/2013 |
| ELBD ARCHIVE |
EPA 822-R-99-014 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD |
EPA 822-R-99-014 |
|
AWBERC Library/Cincinnati,OH |
02/11/2000 |
| ERAD |
EPA 822/R-99-014 |
|
Region 9 Library/San Francisco,CA |
06/30/2000 |
| ESAD |
EPA-822-R-99-014 |
2 copies |
Region 10 Library/Seattle,WA |
06/03/2016 |
| NTIS |
PB2005-109112 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
vi, 147 p. : ill. ; 28 cm. |
| Abstract |
This 1999 Update first presents an overview of ammonia toxicology in order to provide the background needed to explain the revisions of the freshwater ammonia criterion. Then the equations used in the older documents to address the temperature- and pHdependence of ammonia toxicity in fresh water are revised to take into account newer data, better models, and improved statistical methods. Next, a CMC (acute criterion) is derived from the acute toxicity data in the 1984/1985 criteria document, pH-normalized using the new equations. Then, new and old chronic toxicity data are evaluated and used to derive a CCC (chronic criterion). Lastly, the chronic averaging period is addressed. |
| Notes |
"EPA 822-R-99-014." "December 1999." "Supercedes 1998 Update." Includes bibliographical references (p. 89-100). Includes appendixes (p. 101-147). |
