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Title: Removal of low levels of Cu from ongoing sources in the presence of other elements – Implications for remediated contaminated sediments

Abstract

Mesocosms were used to research the effects of Cu influx, alone and in the presence of other elements, on sediments remediated by active caps, passive caps, and in situ treatment. Competitive interactions between Cu and other elements were investigated because contaminants often co-occur. Elements in surface water remained at significantly lower concentrations in mesocosms with apatite and mixed amendment caps than in mesocosms with passive sand caps or uncapped sediment. Element concentrations in Lumbriculus variegatus were significantly higher in untreated sediment than in active caps and significantly related to element concentrations in sediment measured by DGT probes. The cumulative toxicity of Cu mixed with other elements was greater than the toxicity of Cu alone in treatments without active caps, but the ability of active caps to control Cu was not affected by the presence of other elements. Active caps can protect remediated sediments by reducing bioavailable elements in ongoing contamination.

Authors:
 [1];  [1];  [2]
  1. Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)
  2. Savannah River Site (SRS), Aiken, SC (United States). Savannah River Ecology Lab. (SREL)
Publication Date:
Research Org.:
Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)
Sponsoring Org.:
USDOE Office of Environmental Management (EM)
OSTI Identifier:
1602971
Alternate Identifier(s):
OSTI ID: 1636179
Report Number(s):
SRNL-L3230-2019-00002
Journal ID: ISSN 0048-9697
Grant/Contract Number:  
AC09-08SR22470; DEFC09-07SR22506
Resource Type:
Accepted Manuscript
Journal Name:
Science of the Total Environment
Additional Journal Information:
Journal Volume: 668; Journal Issue: C; Journal ID: ISSN 0048-9697
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES

Citation Formats

Knox, Anna Sophia, Paller, Michael H., and Seaman, John C.. Removal of low levels of Cu from ongoing sources in the presence of other elements – Implications for remediated contaminated sediments. United States: N. p., 2019. Web. https://doi.org/10.1016/j.scitotenv.2019.02.403.
Knox, Anna Sophia, Paller, Michael H., & Seaman, John C.. Removal of low levels of Cu from ongoing sources in the presence of other elements – Implications for remediated contaminated sediments. United States. https://doi.org/10.1016/j.scitotenv.2019.02.403
Knox, Anna Sophia, Paller, Michael H., and Seaman, John C.. Thu . "Removal of low levels of Cu from ongoing sources in the presence of other elements – Implications for remediated contaminated sediments". United States. https://doi.org/10.1016/j.scitotenv.2019.02.403. https://www.osti.gov/servlets/purl/1602971.
@article{osti_1602971,
title = {Removal of low levels of Cu from ongoing sources in the presence of other elements – Implications for remediated contaminated sediments},
author = {Knox, Anna Sophia and Paller, Michael H. and Seaman, John C.},
abstractNote = {Mesocosms were used to research the effects of Cu influx, alone and in the presence of other elements, on sediments remediated by active caps, passive caps, and in situ treatment. Competitive interactions between Cu and other elements were investigated because contaminants often co-occur. Elements in surface water remained at significantly lower concentrations in mesocosms with apatite and mixed amendment caps than in mesocosms with passive sand caps or uncapped sediment. Element concentrations in Lumbriculus variegatus were significantly higher in untreated sediment than in active caps and significantly related to element concentrations in sediment measured by DGT probes. The cumulative toxicity of Cu mixed with other elements was greater than the toxicity of Cu alone in treatments without active caps, but the ability of active caps to control Cu was not affected by the presence of other elements. Active caps can protect remediated sediments by reducing bioavailable elements in ongoing contamination.},
doi = {10.1016/j.scitotenv.2019.02.403},
journal = {Science of the Total Environment},
number = C,
volume = 668,
place = {United States},
year = {2019},
month = {2}
}

Journal Article:

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Cited by: 2 works
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