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  • A simple hydrophobicity-based approach to predict the toxicity of unknown organic micropollutant mixtures in marine water

    Author(s)
    Lin, Zhifen
    Zhong, Ping
    Niu, Xiaojun
    Yin, Kedong
    Yu, Hongxia
    Du, Jianwei
    Griffith University Author(s)
    Yin, Kedong
    Year published
    2005
    Metadata
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    Abstract
    In this study, we propose a simple hydrophobicity-based approach to predict the toxicity of mixtures of marine organic micropollutants. Fifty mixtures were chosen, comprising individual chemicals randomly chosen from three halogenated benzenes, three phenols, two petroleum hydrocarbons, three polychlorinated biphenyls (PCBs), four organochlorine pesticides (OCPs) and two herbicides, with the intention of simulating the mixtures of organic micropollutants that may exist in some marine waters. The hydrophobicity of the mixtures was quantified by measuring the C18-EmporeTM disk/water partition coefficients (KMD). A KMD-based ...
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    In this study, we propose a simple hydrophobicity-based approach to predict the toxicity of mixtures of marine organic micropollutants. Fifty mixtures were chosen, comprising individual chemicals randomly chosen from three halogenated benzenes, three phenols, two petroleum hydrocarbons, three polychlorinated biphenyls (PCBs), four organochlorine pesticides (OCPs) and two herbicides, with the intention of simulating the mixtures of organic micropollutants that may exist in some marine waters. The hydrophobicity of the mixtures was quantified by measuring the C18-EmporeTM disk/water partition coefficients (KMD). A KMD-based approach was proposed to describe their toxicity to Photobacterium phosphoreum, and the application of this approach to another 10 related mixtures proved its predictive capability, as indicated by the consistency between the predicted and observed toxicities (r2 = 0.905, SE = 0.101, and F = 76.325 at P < 0.001). This predictive capability convinces us that the KMD-based approach provides a general approach to predicting the toxicity of mixtures of organic micropollutants in marine water.
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    Journal Title
    Marine Pollution Bulletin
    Volume
    50
    Issue
    6
    Publisher URI
    http://www.elsevier.com/wps/find/journaldescription.cws_home/400/description#description
    DOI
    https://doi.org/10.1016/j.marpolbul.2005.01.004
    Publication URI
    http://hdl.handle.net/10072/20871
    Collection
    • Journal articles

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