A Comparison of Standard Acute Toxicity Tests With Rapid-Screening Toxicity Tests

Toussaint, Margaret W.; Shedd, Tommy R.; Schalie, William H. van der; Leather, Gerald R.

doi:10.1897/1552-8618(1995)14[907:acosat]2.0.co;2

Cited by 33 publications

(37 citation statements)

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“…Martins et al () summarized in their review the Cd LC 50 ‐48h values of the microcrustacean D. magna found in literature. The lowest concentration reported was equal to 0.009 mg Cd.L −1 (Lewis and Horning Ii, ) whereas the highest was of 0.065 mg Cd/L (Toussaint et al, ). While the lowest U LC 50 ‐48h for D. magna reported by Zeeman et al () was equal to 0.39 mg U/L while the highest was of 7.8 mg U/L.…”

Section: Discussionmentioning

confidence: 99%

How toxic is the depleted uranium to crayfish Procambarus clarkii compared with cadmium?

Kaddissi

Simon

Elia

et al. 2014

Environmental Toxicology

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Due to a lack of information on the assessment of uranium's (U) toxicity, our work aimed to compare the effects of U on the crayfish Procambarus clarkii with those of the well documented metal: cadmium (Cd). Accumulation and impacts at different levels of biological organization were assessed after acute (40 µM Cd or U; 4-10 days) and chronic (0.1 µM Cd or U; 30-60 days) exposures. The survival rates demonstrated the high tolerance of this species toward both metals and showed that Cd had a greater effect on the sustainability of crayfish. The concentration levels of Cd and U accumulated in gills and hepatopancreas were compared between both conditions. Distinctions in the adsorption capacities and the mobility of the contaminants were suspected. Differences in the detoxification mechanisms of both metals using transmission electron microscopy equiped with an energy dispersive X-ray were also pointed out. In contrast, comparison between the histological structures of contaminated hepatopancreas showed similar symptoms. Principal component analyses revealed different impacts of each metal on the oxidative balance and mitochondria using enzymatic activities and gene expression levels as endpoints. The observation that U seemed to generate more oxidative stress than Cd in our conditions of exposure is discussed.

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Section: Discussionmentioning

confidence: 99%

How toxic is the depleted uranium to crayfish Procambarus clarkii compared with cadmium?

Kaddissi

Simon

Elia

et al. 2014

Environmental Toxicology

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“…The CV values for various metals varied from 8.5 to 22.6%. In addition, for comparative purposes, Table 6 lists data derived from the batch method as reported in the literature [24–28]. These data were mainly calculated on biomass unless otherwise specified.…”

Section: Resultsmentioning

confidence: 99%

Optimization and performance evaluation of the continuous algal toxicity test

Chen

Lin

1997

Enviro Toxic and Chemistry

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Responses of Selenastrum capricornutum to cadmium in a chemostat are evaluated under various test conditions defined by the nitrogen to phosphorus ratio, phosphate strength, dilution rate, and ethylenediaminetetraacetic acid content. Based on the test results, these parameters were optimized to achieve superior test sensitivity. This continuous system was also modified to allow testing on a weekly basis. The performance of the modified testing technique was evaluated, employing six different metal toxicants. Compared with batch test results reported by other researchers and our own experiment, the continuous test achieved superior sensitivities and reproducibility. The test method presented in this study is believed to be an ideal technique both for research and regulatory purposes.

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“…Artemia salina tests35 were conducted for all bioreactor effluents. Daphnia magna and Microtox ™ tests were carried out by ALS Laboratories in Winnipeg, MB, and Grande Prairie, AB, respectively, using the appropriate regulatory protocols 36, 37…”

Section: Methodsmentioning

confidence: 99%

Biodegradation kinetics of trans‐4‐methyl‐1‐cyclohexane carboxylic acid in continuously stirred tank and immobilized cell bioreactors

Paslawski

Nemati

Hill

et al. 2009

J of Chemical Tech & Biotech

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A Comparison of Standard Acute Toxicity Tests With Rapid-Screening Toxicity Tests

Cited by 33 publications

References 0 publications

How toxic is the depleted uranium to crayfish Procambarus clarkii compared with cadmium?

How toxic is the depleted uranium to crayfish Procambarus clarkii compared with cadmium?

Optimization and performance evaluation of the continuous algal toxicity test

Biodegradation kinetics of trans‐4‐methyl‐1‐cyclohexane carboxylic acid in continuously stirred tank and immobilized cell bioreactors

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