| Main Title |
Estimating 'Concern Levels' for Concentrations of Chemical Substances in the Environment. |
| CORP Author |
Environmental Protection Agency, Washington, DC. Office of Pollution, Prevention, and Toxics. |
| Publisher |
Feb 1984 |
| Year Published |
1984 |
| Stock Number |
PB2007-102105 |
| Additional Subjects |
Environmental concentration ;
Chemical substances ;
Aquatic environment ;
Levels (Quantity) ;
Adverse effects ;
Evaluation ;
Procedure ;
Rationale ;
Methodology ;
Lead Magnesium Niobate (PMN) ;
Toxic Substance Control Act (TSCA)
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB2007-102105 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
49p |
| Abstract |
In evaluating PMNs, the Environmental Effects Branch attempts to estimate levels of a given compound which, if met or exceeded in the environment, could cause adverse effects. The data set from which such concentrations are estimated may run the gamut from fairly complete packages, containing both acute and chronic test data, to only the structure of the chemical itself. The purpose of this position document is to describe the procedure and rationale followed to estimate environmental concentrations of concern for a particular chemical. The methodology described should identify (at least 95% of the time) concentration concern levels for TSCA chemicals which may cause adverse environmental effects. |
| Availability Notes |
Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| Category Codes |
43F; 91A; 68G; 99; 57H; 48G |
| NTIS Prices |
PC A04/MF A01 |
| Primary Description |
500/00 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
005101210 |
| Origin |
NTIS |
| Type |
CAT |
