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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Sancey, Bertrand Badot, Pierre-Marie Crini, Grégorio Degiorgi, François Charles, Jérémie Morin-Crini, Nadia |
| Description | Country affiliation: France Author Affiliation: Charles J ( UMR CNRS 6249 USC INRA Chrono-Environnement, Université de Franche-Comté, Place Leclerc, 25030, Besançon, France.) |
| Abstract | To document the toxicity of copper and nickel in binary mixtures, freshwater amphipods Gammarus pulex were exposed to the metals given independently or as mixtures. Toxicity to Cu alone was relatively high: 96-h LC10 and LC50 were found at 91 and 196 µg L(-1), respectively. Toxicity to Ni alone was very low, with 96-h LC10 and LC50 of 44,900 and 79,200 µg L(-1), respectively. Mixture toxicities were calculated from single toxicity data using conventional models. Modeled toxicity was then compared with the measured toxicity of the binary mixture. Two kinds of mixtures were tested. Type I mixtures were designed as combinations of Cu and Ni given at the same effect concentrations, when taken independently, to identify possible interactions between copper and nickel. In type II mixtures, Cu concentrations varied from 0 to 600 µg L(-1) while the nickel concentration was kept constant at 500 µg L(-1) to mimic conditions of industrial wastewater discharges. Ni and Cu showed synergic effects in type I mixtures while type II mixtures revealed antagonistic effects. Low doses of Ni reduced Cu toxicity towards G. pulex. These results show that even for simple binary mixtures of contaminants with known chemistry and toxicity, unexpected interactions between the contaminants may occur. This reduces the reliability of conventional additivity models. |
| ISSN | 09441344 |
| Issue Number | 2 |
| Volume Number | 21 |
| e-ISSN | 16147499 |
| Journal | Environmental Science and Pollution Research |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2014-01-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Amphipoda Drug Effects Copper Toxicity Fresh Water Chemistry Nickel Water Pollutants, Chemical Animals Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Health, Toxicology and Mutagenesis Pollution Medicine |
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