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Microbial degradation is the dominant pathway for natural attenuation of PAHs in environmental compartments such as sediments, which in turn depends on the bioavailability of PAHs. The bioavailability of PAHs has seldom been studied at the sediment particle size scale. We evaluated biodegradation of pyrene by Mycobacterium vanbaalenii PYR-1 as a function of sediment particle sizes, and investigated...
The availability of sorbed hydrophobic organic contaminants (HOCs) to benthic organisms is important for characterizing sediment toxicity. While many studies show a correlation between the rapid desorption HOC pool and bioavailability to benthic organisms, bioavailability of the slow or very slow desorption fraction is still poorly understood. In this study, Chironomus tentans were exposed to phenanthrene...
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