Cadmium distribution in coastal sediments and mollusks of the US
| Autor: | Dennis A. Apeti, Gerhardt F. Riedel, Gunnar G. Lauenstein |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Pollution
Geologic Sediments Salinity media_common.quotation_subject chemistry.chemical_element Aquatic Science Oceanography Animals Seawater Mollusca Shellfish media_common Cadmium geography geography.geographical_feature_category biology Sediment Estuary Mussel Bivalvia biology.organism_classification United States chemistry Environmental science Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Marine Pollution Bulletin. 58:1016-1024 |
| ISSN: | 0025-326X |
| DOI: | 10.1016/j.marpolbul.2009.02.013 |
| Popis: | Cadmium (Cd) concentrations in the coastal United States were assessed using the National Status and Trends (NST) Mussel Watch dataset, which is based on the analysis of sediments and bivalves collected from 280 sites since 1986. Using the 1997 sediment data, Pearson correlation (r=0.44, p0.0001) suggested that Cd distributions in sediment can, be to some extent, explained by the proximity of sites to population centers. The 2003 tissue data indicated that "high" Cd concentrations (greater than 5.6 microg/g dry weights [dw] for mussel and 5.4 microg/g dw for oysters) were related to salinity along the East and Gulf coasts. Along the West coast, however, these "high" sites appeared to be related to upwelling phenomenon. Additionally, sedimentary diagenesis was found to be the most likely explanation of why sediment and mollusk Cd content were not well correlated. |
| Databáze: | OpenAIRE |
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