The Scientific World Journal

The Scientific World Journal / 2002 / Article
Special Issue

Analysis, Toxicity and Biodegradation of Organic Pollutants in Groundwater from Contaminated Land, Landfills and Sediments: Selected Peer-Reviewed

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Short Communication | Open Access

Volume 2 |Article ID 686157 | 6 pages | https://doi.org/10.1100/tsw.2002.221

Toxicity of Single and Mixed Contaminants in Seawater Measured with Acute Toxicity Bioassays

Received22 Nov 2001
Revised13 Mar 2002
Accepted18 Mar 2002

Abstract

Different types of organic pollutants commonly detected in seawater have been evaluated by acute toxicity bioassays. Vibrio fischeri, Daphnia magna, and Selenastrum capricornotum were selected to test toxic effects of individual compounds and mixtures of these compounds, obtaining EC50 values in the range of 0.001 to 28.9 mg/l. In the case of mixtures, synergistic toxic responses were seen for a clear majority of the cases (>60%). Mixtures containing methyl-tertiary-butyl ether (MTBE) exhibit accelerated processes that result in a change in concentration required to produce a toxic effect; for example, in the case of mixtures containing MTBE and Diuron and Dichlofluanid.


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