Christos Papantoniou
L'Oréal
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Featured researches published by Christos Papantoniou.
Environmental Toxicology and Chemistry | 1999
Pascal Radix; Marc Léonard; Christos Papantoniou; Gilles Roman; Erwan Saouter; Sophie Gallotti-Schmitt; Hervé Thiébaud; Paule Vasseur
The Daphnia magna 21-d test may be required by European authorities as a criterion for the assessment of aquatic chronic toxicity for the notification of new substances. However, this test has several drawbacks. It is labor-intensive, relatively expensive, and requires the breeding of test organisms. The Brachionous calyciflorus 2-d test and Microtoxr̀ chronic 22-h test do not suffer from these disadvantages and could be used as substitutes for the Daphnia 21-d test for screening assays. During this study, the toxicity of 25 chemicals was measured using both the Microtox chronic toxicity and B. calyciflorus 2-d tests, and the no-observed-effect concentrations (NOECs) were compared to the D. magna 21-d test. The Brachionus test was slightly less sensitive than the Daphnia test, but the correlation between the two tests was relatively good (r2 = 0.88). On average, the Microtox chronic test presented the same sensitivity as the Daphnia test, but the results did not correlate as well (r2 = 0.54). The B. calyciflorus 2-d test, and to a lesser extent the Microtox chronic 22-h test, were able to predict the chronic toxicity values of the Daphnia 21-d test. They constitute promising cost-effective tools for chronic toxicity screening.
Environmental Toxicology and Chemistry | 1999
Pascal Radix; Marc Léonard; Christos Papantoniou; Gilles Roman; Erwan Saouter; Sophie Gallotti-Schmitt; Hervé Thiébaud; Paule Vasseur
The Daphnia magna 21-d test may be required by European authorities as a criterion for the assessment of aquatic chronic toxicity for the notification of new substances. However, this test has several drawbacks. It is labor-intensive, relatively expensive, and requires the breeding of test organisms. The Brachionous calyciflorus 2-d test and Microtox chronic 22-h test do not suffer from these disadvantages and could be used as substitutes for the Daphnia 21-d test for screening assays. During this study, the toxicity of 25 chemicals was measured using both the microtox chronic toxicity and B. calyciflorus 2-d tests, and the no-observed-effect concentrations (NOECs) were compared to the D. magna 21-d test. The Brachionus test was slightly less sensitive than the Daphnia test, but the correlation between the two tests was relatively good (r{sup 2} = 0.54). The B. calyciflorus 2-d test, and to a lesser extent the Microtox chronic 22-h test, were able to predict the chronic toxicity values of the Daphnia 21-d test. They constitute promising cost-effective tools for chronic toxicity screening.
Archive | 1974
Christos Papantoniou; Jean Boulogne
Archive | 1978
Bernard Jacquet; Claude Mahieu; Christos Papantoniou
Archive | 1979
Bernard Jacquet; Christos Papantoniou; Guy Vanlerberghe; Claude Mahieu; Vahan Zorayan
Archive | 1976
Jean Mondet; Christos Papantoniou
Ecotoxicology and Environmental Safety | 2000
Pascal Radix; Marc Léonard; Christos Papantoniou; Gilles Roman; Erwan Saouter; Sophie Gallotti-Schmitt; Hervé Thiébaud; Paule Vasseur
Archive | 1989
Hans Schaefer; Francine Watts; Christos Papantoniou; Claude Mahieu
Archive | 1973
Christos Papantoniou
Archive | 1975
Christos Papantoniou; Jean-Claude Grognet