| Main Title |
Sand and gravel overlay for control of mercury in sediments / |
| Author |
Bongers, Leonard H.,
|
| Other Authors |
|
| CORP Author |
United States. Environmental Protection Agency. Office of Research and Monitoring. |
| Publisher |
United States Environmental Protection Agency, Office of Research and Monitoring, |
| Year Published |
1972 |
| Report Number |
EPA/620/R-72/004; W7212069; 16080HVA0172 |
| OCLC Number |
00540671 |
| Subjects |
Water--Pollution ;
Mercury ;
Sediments (Geology)
|
| Additional Subjects |
Water--Pollution ;
Mercury ;
Sediments (Geology)
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJAM |
TD427.M4B65 |
|
Region 3 Library/Philadelphia, PA |
01/01/1988 |
| EJBD |
EPA 620-R-72-004 |
|
Headquarters Library/Washington,DC |
01/08/2014 |
| ELBD ARCHIVE |
EPA 620-R-72-004 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD |
EPA 620-R-72-004 |
|
AWBERC Library/Cincinnati,OH |
11/01/2011 |
| EMBD |
WPCR 16080 HVA 01/72 |
|
NRMRL/GWERD Library/Ada,OK |
06/10/1994 |
|
| Collation |
vii, 45 pages : illustrations, figures, tables ; 28 cm. |
| Notes |
"January 1972." U.S. Environmental Protection Agency Contract No. Contract Number: 68-01-0089. Includes bibliographical references (pages 43-45). |
| Contents Notes |
The release of toxic mercurials by mercury-enriched river sediments was examined in the laboratory. Tests showed a release of 1 micro g of methylmercury per sq m, per day. Methylmercury occurred in sediments with low and with high organic content, in sediments with low and high cation exchange capacity, and in aerobic and anaerobic sediments. The release of toxic mercury could be prevented by a layer of sand, 6 cm in thickness, applied over the mercury-enriched sediments. Layers of fine or coarse gravel (6 cm deep) were as effective as sand. A slow release of metallic mercury occurred in aerobic sediments. The release was much faster in anaerobic sediments. Using ascorbate as an artificial electron donor, metallic mercury could be released at high rates from aerobic sediments as well. Ascorbate appeared to be a useful indicator of divalent and biologically accessible mercury. The laboratory investigations proved the soundness of the sand blanket approach. Costs are given. |
| Place Published |
Washington, DC |
| Corporate Au Added Ent |
Research Institute for Advanced Study (Baltimore, Md.).; United States. Environmental Protection Agency. Office of Research and Monitoring. |
| Title Ser Add Ent |
Water pollution control research series. |
| PUB Date Free Form |
1972 |
| Series Title Traced |
Water pollution control research series |
| Series Title Untraced |
Water pollution control research series |
| BIB Level |
m |
| Document Type |
BC |
| Cataloging Source |
OCLC/T |
| LCCN |
72602433 |
| OCLC Time Stamp |
20131025154355 |
| Language |
eng |
| SUDOCS Number |
EP 1.16:16080 HVA 01/72 |
| Origin |
OCLC |
| Type |
CAT |
| OCLC Rec Leader |
02752cam 2200445 a 45020 |
