Artigo Revisado por pares

TOXICITY OF CADMIUM IN SEDIMENTS: THE ROLE OF ACID VOLATILE SULFIDE

1990; Wiley; Volume: 9; Issue: 12 Linguagem: Inglês

10.1897/1552-8618(1990)9[1487

ISSN

1552-8618

Autores

Dominic M. Di Toro, John D. Mahony, David J. Hansen, KJ Scott, Michael B. Hicks, S Mayr, Michele S. Redmond,

Tópico(s)

Water Quality and Pollution Assessment

Resumo

Environmental Toxicology and ChemistryVolume 9, Issue 12 p. 1487-1502 Article Toxicity of cadmium in sediments: The role of acid volatile sulfide Dominic M. Di Toro, Corresponding Author Dominic M. Di Toro Environmental Engineering and Science Program, Manhattan College, Bronx, New York 10471Environmental Engineering and Science Program, Manhattan College, Bronx, New York 10471Search for more papers by this authorJohn D. Mahony, John D. Mahony Environmental Engineering and Science Program, Manhattan College, Bronx, New York 10471Search for more papers by this authorDavid J. Hansen, David J. Hansen Environmental Engineering and Science Program, Manhattan College, Bronx, New York 10471Search for more papers by this authorK. John Scott, K. John Scott Environmental Engineering and Science Program, Manhattan College, Bronx, New York 10471Search for more papers by this authorMichael B. Hicks, Michael B. Hicks Environmental Engineering and Science Program, Manhattan College, Bronx, New York 10471Search for more papers by this authorSuzanne M. Mayr, Suzanne M. Mayr Environmental Engineering and Science Program, Manhattan College, Bronx, New York 10471Search for more papers by this authorMichele S. Redmond, Michele S. Redmond Environmental Engineering and Science Program, Manhattan College, Bronx, New York 10471Search for more papers by this author Dominic M. Di Toro, Corresponding Author Dominic M. Di Toro Environmental Engineering and Science Program, Manhattan College, Bronx, New York 10471Environmental Engineering and Science Program, Manhattan College, Bronx, New York 10471Search for more papers by this authorJohn D. Mahony, John D. Mahony Environmental Engineering and Science Program, Manhattan College, Bronx, New York 10471Search for more papers by this authorDavid J. Hansen, David J. Hansen Environmental Engineering and Science Program, Manhattan College, Bronx, New York 10471Search for more papers by this authorK. John Scott, K. John Scott Environmental Engineering and Science Program, Manhattan College, Bronx, New York 10471Search for more papers by this authorMichael B. Hicks, Michael B. Hicks Environmental Engineering and Science Program, Manhattan College, Bronx, New York 10471Search for more papers by this authorSuzanne M. Mayr, Suzanne M. Mayr Environmental Engineering and Science Program, Manhattan College, Bronx, New York 10471Search for more papers by this authorMichele S. Redmond, Michele S. Redmond Environmental Engineering and Science Program, Manhattan College, Bronx, New York 10471Search for more papers by this author First published: December 1990 https://doi.org/10.1002/etc.5620091208Citations: 538AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract The toxicity of chemicals in sediments is influenced by the extent that chemicals bind to the sediment. It is shown that acid volatile sulfide (AVS) is the sediment phase that determines the LC50 for cadmium in the marine sediments tested. Although it is well known that metals can form insoluble sulfides, it apparently has not been recognized that AVS is a reactive pool of solid phase sulfide that is available to bind with metals. Amphipod sediment toxicity tests were conducted in the laboratory and the observed amphipod LC50s on a normalized cadmium concentration basis, [Cd]/[AVS], is the same for sediments with over an order of magnitude difference in dry weight normalized cadmium LC50s. Because other toxic metals also form insoluble sulfides, it is likely that AVS is important in determining their toxicity in sediments as well. Most freshwater and marine sediments contain sufficient acid volatile sulfide for this phase to be the predominant determinant of toxicity. The other sorption phases are expected to be important only for low AVS sediments, for example, fully oxidized sediments. From the point of view of sediment quality criteria the other sorption phases would be important for metals with large partition coefficients and large chronic water quality criteria. Citing Literature Volume9, Issue12December 1990Pages 1487-1502 RelatedInformation

Referência(s)