| Main Title |
Modeling Monomethylmercury and Tributyltin Speciation with EPA's Geochemical Speciation Model MINTEQA2. |
| Author |
Loux, N. T. ;
|
| CORP Author |
Environmental Protection Agency, Athens, GA. Ecosystems Research Div. |
| Publisher |
May 2005 |
| Year Published |
2005 |
| Report Number |
EPA/600/R-05/063; |
| Stock Number |
PB2006-100890 |
| Additional Subjects |
Organometallic compounds ;
Toxins ;
Geochemistry ;
Monomethyl mercury ;
Tributyltin ;
MINTEQA2 geochemical speciation model
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB2006-100890 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
36p |
| Abstract |
Monomethylmercury (MMHg) is the compound responsible for the majority of fish consumption advisories in forty eight states in the United States of America. These widespread low level (but toxicologically significant) ecological exposures to MMHg result from microbial methylation of atmospherically deposited inorganic mercury in our national waterbodies. Tributyltin (TBT) is an industrially synthesized antifoulant compound that was historically added to paints applied to the hulls of ships, boats and other watercraft. There is an extensive technical literature on the adverse effects associated with low level ecological exposures to this compound. Although the use of TBT has been restricted in recent years, there exists a significant reservoir of TBT in the sediments underlying our nation's boatyards and marinas. Although there is extensive ongoing research devoted to the behavior of MMHg and TBT in the environment, there does not currently exist a widely available chemical speciation modeling capability for these two toxicants in aquatic media. This report addresses this limitation by initiating a modeling capability for these two species using EPA's geochemical speciation model MINTEQA2. Alterations to the MINTEQA2 components database (COMP.DBS) are documented and a template input file is provided (and documented) that will permit researchers to simulate the aqueous chemical speciation of MMHg and TBT. |
| 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 |
68 |
| NTIS Prices |
PC A04/MF A01 |
| Primary Description |
600/00 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
001800570 |
| Origin |
NTIS |
| Type |
CAT |
