Physical-Chemical Approaches for the Environmentally Sound Disposal of an Oil Shale Retort Water

McTernan, William F.; Kocornik, D.J.; Pedram, Enayat O.

doi:10.1080/07377268308915328

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…Due to its ease of operation, cost, standardization, reproducibility, and sensitivity, this bioassay has often been used to estimate the toxicity of sediment extracts [2]. The Microtox assay has also been used to measure the toxicity of pure substances [3][4][5][6], effluents [7][8][9], aqueous and organic extracts [10,11], and in solid phase [12,13].…”

Section: Introductionmentioning

confidence: 99%

Sensitivity Limits and Ec50 Values of the Vibrio Fischeri Test for Organic Micropollutants in Natural and Spiked Extracts From Sediments

Salizzato¹,

Bertato²,

Pavoni³

et al. 1998

Environ Toxicol Chem

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Abstract-Chemical analyses and bioassays were used in conjunction to assess the quality of sediments of the Venice lagoon. Organic micropollutants (polycyclic aromatic hydrocarbons [PAHs] polychlorinated biphenyls [PCBs], and chlorinated pesticides) were extracted from sediment samples and analyzed by gas chromatography after fractionation into classes of compounds. The Vibrio fischeri test was used to assess the acute toxicity of sediment extracts. The test was applied to organic extracts before cleanup and to extracts purified from sulfur and fractionated into single classes of compounds. Extracts before purification were much more toxic than single fractions. In particular, sulfur was toxic to V. fischeri. For PAHs and PCBs the 50% effective concentration (EC50) and EC20 values were determined using natural and spiked extracts (EC50 ϭ 0.5 g/ml and 1.4 g/ml, respectively; EC20 ϭ 0.13 g/ml and 0.17 g/ml). Sensitivity limits of the method for these compounds were also estimated as was an EC50 value of elemental sulfur dissolved in ethanol (0.022 g/ml). A mathematical model was used to fit the concentration-response data to a sigmoid curve.

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Section: Introductionmentioning

confidence: 99%

Sensitivity Limits and Ec50 Values of the Vibrio Fischeri Test for Organic Micropollutants in Natural and Spiked Extracts From Sediments

Salizzato¹,

Bertato²,

Pavoni³

et al. 1998

Environ Toxicol Chem

View full text Add to dashboard Cite

show abstract

“…Due to its ease of operation, cost, standardization, reproducibility, and sensitivity, this bioassay has often been used to estimate the toxicity of sediment extracts [2]. The Microtox assay has also been used to measure the toxicity of pure substances [3–6], effluents [7–9], aqueous and organic extracts [10,11], and in solid phase [12,13].…”

Section: Introductionmentioning

confidence: 99%

Sensitivity limits and EC50 values of the Vibrio fischeri test for organic micropollutants in natural and spiked extracts from sediments

Salizzato

Bertato

Pavoni

et al. 1998

Enviro Toxic and Chemistry

View full text Add to dashboard Cite

Chemical analyses and bioassays were used in conjunction to assess the quality of sediments of the Venice lagoon. Organic micropollutants (polycyclic aromatic hydrocarbons [PAHs] polychlorinated biphenyls [PCBs], and chlorinated pesticides) were extracted from sediment samples and analyzed by gas chromatography after fractionation into classes of compounds. The Vibrio fischeri test was used to assess the acute toxicity of sediment extracts. The test was applied to organic extracts before cleanup and to extracts purified from sulfur and fractionated into single classes of compounds. Extracts before purification were much more toxic than single fractions. In particular, sulfur was toxic to V. fischeri. For PAHs and PCBs the 50% effective concentration (EC50) and EC20 values were determined using natural and spiked extracts (EC50 = 0.5 μg/ml and 1.4 μg/ml, respectively; EC20 = 0.13 μg/ml and 0.17 μg/ml). Sensitivity limits of the method for these compounds were also estimated as was an EC50 value of elemental sulfur dissolved in ethanol (0.022 μg/ml). A mathematical model was used to fit the concentration–response data to a sigmoid curve.

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Assessing detoxification of a complex hazardous waste, using the Microtox?bioassay

Symons

Sims

1988

Arch. Environ. Contam. Toxicol.

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Physical-Chemical Approaches for the Environmentally Sound Disposal of an Oil Shale Retort Water

Cited by 4 publications

References 3 publications

Sensitivity Limits and Ec50 Values of the Vibrio Fischeri Test for Organic Micropollutants in Natural and Spiked Extracts From Sediments

Sensitivity Limits and Ec50 Values of the Vibrio Fischeri Test for Organic Micropollutants in Natural and Spiked Extracts From Sediments

Sensitivity limits and EC50 values of the Vibrio fischeri test for organic micropollutants in natural and spiked extracts from sediments

Assessing detoxification of a complex hazardous waste, using the Microtox?bioassay

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