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KMID : 0364820160520030306
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Korean Journal of Microbiology
2016 Volume.52 No. 3 p.306 ~ p.312
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Toxic effects of Aroclor 1016 and bisphenol A on marine green algae Tetraselmis suecica, diatom Ditylum brightwellii and dinoflagellate Prorocentrum minimum
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Vinitha Ebenezer
Ki Jang-Seu
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Abstract
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Microalgae are the potential bioindicators of environmental changes, for the environmental risk assessment as well as to set limits for toxic chemical release in the aquatic environment. Here, we evaluated the effects of two endocrine disrupting chemicals (EDCs), namely bisphenol A (BPA) and Aroclor 1016, on the green algae Tetraselmis suecica, diatom Ditylum brightwellii, and dinoflagellate Prorocentrum minimum. Each species showed wide different sensitivity ranges when exposed to these two EDCs; the 72 h effective concentration (EC50) for these test species showed that Aroclor 1016 was more toxic than BPA. EC50 values for the diatom D. birghtwellii were calculated at 0.037 mg/L for BPA and 0.002 mg/L for Aroclor 1016, representing it was the most sensitive when compared to the other species. In addition, these results suggest that these EDC discharge beyond these concentrations into the aquatic environments may cause harmful effect to these marine species.
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KEYWORD
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Aroclor 1016, bisphenol A, EC50, ecotoxicity assessment, marine microalgae
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