Sorption of organic genotoxins to particulate matter in industrial effluents

Environmental and Molecular Mutagenesis
P A WhiteC Blaise

Abstract

In an earlier work [White PA et al. (1996): Environ Mol Mutagen 27:116-139] we examined the genotoxicity of dichloromethane extracts from a variety of industrial effluent samples. in this companion work, we used the SOS Chromotest to investigate the sorption of the extracted genotoxins to effluent suspended particulate matter. The affinity of the genotoxins for particulate matter is expressed as a genotoxicity sorption partition coefficient (Kd-genotox). The results indicate that industries known for their emission of combustion by-products, such as polycyclic aromatic hydrocarbons, often have high Kd-genotox values (>/= 10(6). These include metal refining and founding industries as well metal surface treatment facilities. In contrast, Kd-genotox values for pulp and paper mills and sewage treatment facilities are several orders of magnitude lower (</= 10(4)). In several cases the calculated Kd-genotox values are in agreement with the Kow values of genotoxic substances isolated from genotoxic industrial waste samples studied by other researchers. The sorption partition coefficient, in conjunction with concentration of available particulate matter, was used to determine the percent of organic genotoxins adsorbed to effluent suspe...Continue Reading

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Citations

Sep 10, 2013·Ecotoxicology and Environmental Safety·B Huerta BuitragoS Waara
Nov 15, 2011·Mutation Research·Françoise Vincent-HubertJacek Tronczynski
Jun 11, 2011·Aquatic Toxicology·C RibeccoO Carnevali
Dec 2, 2004·Mutation Research·Takeshi OheKeiji Wakabayashi
Dec 2, 2004·Mutation Research·Guosheng Chen, Paul A White
Mar 8, 2005·Archives of Environmental Contamination and Toxicology·B Jolibois, M Guerbet

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