| Main Title |
Exposure Analysis Modeling System (EXAMS) : user manual and system documentation / |
| Author |
Burns, Lawrence A.
|
| Other Authors |
|
| CORP Author |
Environmental Research Lab., Athens, GA. |
| Publisher |
Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, |
| Year Published |
1982 |
| Report Number |
EPA-600/3-82-023 |
| Stock Number |
PB82-258096 |
| OCLC Number |
09220653 |
| Subjects |
Pollution--Computer programs ;
Pollution--Data processing ;
Pollution--Environmental aspects--Computer programs ;
Pollution--Environmental aspects--Data processing ;
Chemicals--Environmental aspects--Computer programs ;
Chemicals--Environmental aspects--Data processing
|
| Additional Subjects |
Organic compounds ;
Manuals ;
Mathematical models ;
Water pollution ;
Concentration(Composition) ;
Transport properties ;
Industrial wastes ;
Exposure ;
Computer programs ;
Computer programming ;
Exposure analysis modeling system ;
Path of pollutants
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EHAM |
QD255.5.E4B87 |
|
Region 1 Library/Boston,MA |
04/29/2016 |
| EHBD |
EPA-600/3-82-023 |
|
CEMM/ACESD Library/Narragansett,RI |
03/16/2007 |
| EJED |
EPA-600/3-82-023 |
|
OCSPP Chemical Library/Washington,DC |
10/14/1994 |
| EKBD |
EPA-600/3-82-023 |
|
Research Triangle Park Library/RTP, NC |
07/25/2003 |
| ELBD ARCHIVE |
EPA 600-3-82-023 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ESAD |
EPA 600-3-82-023 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB82-258096 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
x, 443 pages : illustrations ; 28 cm |
| Abstract |
The Exposure Analysis Modeling System (EXAMS) was designed for rapid evaluation of the behavior of synthetic organic chemicals in aquatic ecosystems. From the chemistry of a compound and the relevant transport and physical/chemical characteristics of the ecosystem, EXAMS computes: (1) Exposure: the ultimate (steady-state) expected environmental concentrations (EECs) resulting from a specified pattern of (long-term, time-invariant) chemical loadings, (2) Fate: the distribution of the chemical in the system and the fraction of the loadings consumed by each transport and transformation process, and (3) Persistence: the time required for effective purification of the system (via export/transformation processes) once the chemical loadings cease. EXAMS combines loadings, transport, and transformations into a set of differential equations using the law of conservation of mass as an accounting principal. This law accounts for all of the chemical mass entering and leaving a system as the algebraic sum of external loadings, transport processes that export the compound from the system, and transformation processes that convert the parent compound to daughter products. |
| Notes |
"July 1982"--Cover. Includes bibliographical references (pages 275-287). "EPA-600/3-82-023." |
