Usha Varanasi

TL;DR: Partitioning of combustion-derived PAHs between water and sediment may be much less than predicted, possibly because associations with particles are much stronger than expected, and this reduced partitioning may produce erroneous results in predicting bioaccumulation where uptake from water is important.

TL;DR: Exposure studies showed that xenobiotic metabolism, as reflected in hepatic activities of XMEs and levels of FACs in the bile, is altered by exposure to environmental contaminants.

TL;DR: The results showed that all the examined indexes could discriminate among sites exhibiting different degrees of chemical contamination, and that the use of the indexes in concert appeared to enhance the assessment of contaminant exposure and sublethal effects.

TL;DR: The chromatographic characteristics of the adducts and the similarities in adduct profiles between field-sampled English sole and those treated with contaminated sediment extracts suggested that hydrophobic aromatic compounds of anthropogenic origin were adducted to hepatic DNA of sole from contaminated sites, but not in sole from the reference site.

TL;DR: The results show that cytochemical measurement of lysosomal responses combined with automatic image analysis have the potential to be used as sensitive, accurate and rapid techniques for assessing the biological impact of environmental contaminants in mussels in the near coastal environment.