Toxicity assessment of pesticide mixtures typical of the Sacramento-San Joaquin Delta using Chironomus tentans.


This study examined the effects of nine commonly detected pesticides in the Sacramento-San Joaquin Delta on the aquatic midge Chironomus tentans. Pesticides were chosen from a variety of chemical classes including organophosphate (OP) insecticides as well as triazine, triazinone, and substituted urea herbicides. Both single toxicant and binary mixture… (More)