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Title: Toxicity testing of organic chemicals in groundwater polluted with landfill leachate

Abstract

A method for assessment of toxicity of nonvolatile organic chemicals contaminants in groundwater polluted with landfill leachate has been evaluated. The biotests utilized were composed of an algal growth inhibition test (Selenastrum capricornutum), a daphnia immobilization test (Daphnia magna), and a bacterial genotoxicity test (umuC, Salmonella typhimurium). The feasibility of the selected biotests was investigated for a series of groundwater samples collected along pollution gradients downstreams of two landfills in Jutland, Denmark. Two different approaches were used, direct toxicity testing of whole groundwater samples, and toxicity testing of concentrates obtained by solid-phase extraction. Direct testing of whole groundwater samples produced toxic responses, but the complex sample matrix masked the toxicity of the organic chemical contaminants of interest. Solid-phase extraction was used successfully as an on-site method that eliminated ion toxicity and produced biotest responses that reflected the toxicity of the nonvolatile organic chemical contaminants in the groundwater.

Authors:
; ; ;
Publication Date:
Research Org.:
Technical Univ. of Denmark, Lyngby (DK)
OSTI Identifier:
20006633
Alternate Identifier(s):
OSTI ID: 20006633
Resource Type:
Journal Article
Journal Name:
Environmental Toxicology and Chemistry
Additional Journal Information:
Journal Volume: 18; Journal Issue: 9; Other Information: PBD: Sep 1999; Journal ID: ISSN 0730-7268
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 56 BIOLOGY AND MEDICINE, APPLIED STUDIES; WATER POLLUTION; SANITARY LANDFILLS; LEACHATES; BIOASSAY; ORGANIC COMPOUNDS

Citation Formats

Baun, A., Kloeft, L., Bjerg, P.L., and Nyholm, N. Toxicity testing of organic chemicals in groundwater polluted with landfill leachate. United States: N. p., 1999. Web. doi:10.1897/1551-5028(1999)018<2046:TTOOCI>2.3.CO;2.
Baun, A., Kloeft, L., Bjerg, P.L., & Nyholm, N. Toxicity testing of organic chemicals in groundwater polluted with landfill leachate. United States. doi:10.1897/1551-5028(1999)018<2046:TTOOCI>2.3.CO;2.
Baun, A., Kloeft, L., Bjerg, P.L., and Nyholm, N. Wed . "Toxicity testing of organic chemicals in groundwater polluted with landfill leachate". United States. doi:10.1897/1551-5028(1999)018<2046:TTOOCI>2.3.CO;2.
@article{osti_20006633,
title = {Toxicity testing of organic chemicals in groundwater polluted with landfill leachate},
author = {Baun, A. and Kloeft, L. and Bjerg, P.L. and Nyholm, N.},
abstractNote = {A method for assessment of toxicity of nonvolatile organic chemicals contaminants in groundwater polluted with landfill leachate has been evaluated. The biotests utilized were composed of an algal growth inhibition test (Selenastrum capricornutum), a daphnia immobilization test (Daphnia magna), and a bacterial genotoxicity test (umuC, Salmonella typhimurium). The feasibility of the selected biotests was investigated for a series of groundwater samples collected along pollution gradients downstreams of two landfills in Jutland, Denmark. Two different approaches were used, direct toxicity testing of whole groundwater samples, and toxicity testing of concentrates obtained by solid-phase extraction. Direct testing of whole groundwater samples produced toxic responses, but the complex sample matrix masked the toxicity of the organic chemical contaminants of interest. Solid-phase extraction was used successfully as an on-site method that eliminated ion toxicity and produced biotest responses that reflected the toxicity of the nonvolatile organic chemical contaminants in the groundwater.},
doi = {10.1897/1551-5028(1999)018<2046:TTOOCI>2.3.CO;2},
journal = {Environmental Toxicology and Chemistry},
issn = {0730-7268},
number = 9,
volume = 18,
place = {United States},
year = {1999},
month = {9}
}