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First toxicity data of chlorophenols on marine alga Dunaliella tertiolecta: Correlation of marine algal toxicity with hydrophobicity and interspecies toxicity relationships



The toxicity of phenol and 13 chlorinated phenols to the marine alga Dunaliella tertiolecta is presented for the first time. The newly generated marine algal toxicity data was found to correlate strongly with the widely used hydrophobicity parameterthe logarithm of the n-octanol–water partition coefficient (log KOW). Interspecies relationships using the new marine algal toxicity data of chlorophenols with the previously published data on bacterium (Vibrio fischeri), protozoan (Tetrahymena pyriformis), daphnid (Daphnia magna), freshwater alga (Pseudokirchneriella subcapitata), and fish (Pimephales promelas) revealed promising results that could be exploited in extrapolations using freshwater data to predict marine algal toxicity. Environ. Toxicol. Chem. 2012; 31: 1113–1120. © 2012 SETAC