| Seasonal bioavailability of sediment-associated heavy metals along the Mississippi river floodplain. | |
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MedLine Citation:
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PMID: 11680760 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A value of simultaneously extracted metal to acid-volatile sulfide (SEM-AVS) can provide important information regarding metal availability in anaerobic sediment. SEM and AVS concentrations were obtained by the cold-acid purge-and-trap technique during spring and summer at six locations along the Mississippi River floodplain. SEM-AVS values and AVS concentrations did not vary significantly between locations during both seasons. AVS concentrations were significantly greater during summer than spring, resulting in significantly lower SEM-AVS values in summer. Total SEM concentrations did not significantly vary between seasons or specific locations. SEM-AVS values were greater than one at each location during both seasons. Sediment metal toxicity was predicted to be absent for benthic organisms along the river floodplain. |
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Authors:
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L A Grabowski; J L Houpis; W I Woods; K A Johnson |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Chemosphere Volume: 45 ISSN: 0045-6535 ISO Abbreviation: Chemosphere Publication Date: 2001 Nov |
Date Detail:
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Created Date: 2001-10-26 Completed Date: 2002-02-28 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 0320657 Medline TA: Chemosphere Country: England |
Other Details:
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Languages: eng Pagination: 643-51 Citation Subset: IM |
Affiliation:
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Department of Rangeland Ecosystem Science, Colorado State University, Berthoud 80513, USA. lgrabo3169@aol.com |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Biological Availability Disasters Environmental Monitoring* Forecasting Geologic Sediments / chemistry* Invertebrates Metals, Heavy / analysis*, pharmacokinetics, toxicity Risk Assessment Seasons Sulfides / chemistry Volatilization |
| Chemical | |
Reg. No./Substance:
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0/Metals, Heavy; 0/Sulfides |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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