| Main Title |
Mercury in aquatic systems : methylation, oxidation-reduction, and bioaccumulation / |
| Author |
Holm, Harvey W.,
|
| Other Authors |
|
| CORP Author |
Environmental Protection Agency, Athens, Ga. Southeast Environmental Research Lab.;National Environmental Research Center, Corvallis, Oreg. |
| Publisher |
National Environmental Research Center, Office of Research and Development, U.S. Environmental Protection Agency, |
| Year Published |
1974 |
| Report Number |
EPA 660-3-74-021 |
| Stock Number |
PB-239 329 |
| OCLC Number |
01198733 |
| Subjects |
Mercury ;
Aquatic ecology
|
| Additional Subjects |
Mercury(Metal) ;
Aquatic microbiology ;
Evaluation ;
Food chains ;
Methylation ;
Oxidation reduction reactions ;
Recommendations ;
Growth ;
Experimental data ;
Bacteria ;
Pseudomonas ;
Accumulation ;
Mercury/methyl
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EHBD |
EPA-660/3-74-021 |
|
CEMM/ACESD Library/Narragansett,RI |
04/13/2007 |
| EJBD |
EPA 660-3-74-021 |
|
Headquarters Library/Washington,DC |
12/29/2014 |
| EJED |
EPA 660-3-74-021 |
|
OCSPP Chemical Library/Washington,DC |
07/09/2019 |
| EKCD |
EPA-660/3-74-021 |
|
CEMM/GEMMD Library/Gulf Breeze,FL |
11/27/2018 |
| ELBD |
EPA 660-3-74-021 |
|
AWBERC Library/Cincinnati,OH |
04/25/1998 |
| ERAD |
EPA 660/3-74-021 |
|
Region 9 Library/San Francisco,CA |
08/09/2002 |
| ESBD |
EPA-660-3-74-021 |
|
CPHEA/PESD Library/Corvallis,OR |
09/27/2017 |
| NTIS |
PB-239 329 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
vi, 38 pages : illustrations, figures, tables ; 28 cm |
| Abstract |
The role of organisms on the fate of mercury in aquatic environments was evaluated. Objectives were to quantitate transformations of mercury in water-sediment systems, to investigate the fate of elemental mercury in microbial growth systems, and to measure the concentration of total and methylmercury in food chain organisms. In anaerobic water-sediment systems spiked with calcium acetate and mercuric chloride, elemental mercury was produced in larger quantities than methylmercury. In water-sediment systems, added elemental mercury was oxidized and deposited in the sediments where small amounts of methylmercury were formed. Six pure cultures of bacteria oxidized elemental mercury, but none formed methylmercury. In a stream receiving mercuric ion, mosquito fish contained more methylmercury than did tadpoles, snails, and aquatic insects. Algae did not contain methylmercury, even though their total mercury levels were high. |
| Notes |
"August 1974." "ROAP 21AIM, Task 11." Includes bibliographical references (pages 30-34). |
