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How Well Can We Predict the Toxicity of Pesticide Mixtures to Aquatic Life?
Results indicate that the CA model may be used as a slightly conservative, but broadly applicable model with a relatively small likelihood of underestimating effects due to interactions.
Toxicity of fluoroquinolone antibiotics to aquatic organisms
Results from tests with the crustacean Daphnia magna and fathead minnow showed limited toxicity with no‐observed‐effect concentrations at or near 10 mg/L, however, the selective toxicity of these compounds may have implications for aquatic community structure.
Distribution and toxicity of sediment-associated pesticides in agriculture-dominated water bodies of California's Central Valley.
This study provides one of the first geographically broad assessments of pyrethroids in areas highly affected by agriculture and suggests there is a greater need to examine sediment-associated pesticide residues and their potential for uptake by and toxicity to benthic organisms.
Toxicokinetics in aquatic systems: Model comparisons and use in hazard assessment
Toxicokinetic models are not constrained by assumptions of equilibrium as are thermodynamic (equilibrium-partitioning) models and are more accurate predictors of toxicant accumulation for
Impact of atrazine on organophosphate insecticide toxicity
The increase in toxicity of selected organophosphorus insecticides is thought to be due to an increase in biotransformation rates of the OPs, resulting in more O‐analog within the organism.
Joint toxicity of chlorpyrifos and esfenvalerate to fathead minnows and midge larvae
  • J. Belden, M. Lydy
  • Environmental Science
    Environmental toxicology and chemistry
  • 1 February 2006
The joint toxicity of esfenvalerate and chlorpyrifos to the fathead minnow and the aquatic midge larvae was determined using comparisons to independent action and concentration addition models.
Synergistic toxicity of atrazine and organophosphate insecticides contravenes the response addition mixture model
Results suggest that the response addition model does not always accurately predict mixture toxicity for chemicals with differing modes of action, and indicates more than additive toxicity for all compounds except mevinophos.
Passive sampling methods for contaminated sediments: State of the science for organic contaminants
The development of PSMs that represent the chemical activity of complex compound–sediment interactions, expressed as the freely dissolved contaminant concentration in porewater (Cfree), offer a better proxy for endpoints of concern, such as reactivity, bioaccumulation, and toxicity.