2009
DOI: 10.1021/es901083v
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Prediction of Daphnid Survival after in Situ Exposure to Complex Mixtures

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Cited by 16 publications
(16 citation statements)
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“…The insecticides typically target nerve function, even if the target is not mediated by the same molecular initiating event (e.g., acetyl cholinesterase binding, nicotinic receptor binding, or sodium channel binding). We used this approach before an exceedance of 1 for the NEC mix proved to be an excellent proxy for predicting daphnid survival after exposure to complex mixtures . This general approach is in line with other research with both the concentration addition and independent action models to predict mixture effects for different pesticides , although with some tendency toward moderate synergistic effects in binary mixtures.…”
Section: Discussionsupporting
confidence: 66%
See 1 more Smart Citation
“…The insecticides typically target nerve function, even if the target is not mediated by the same molecular initiating event (e.g., acetyl cholinesterase binding, nicotinic receptor binding, or sodium channel binding). We used this approach before an exceedance of 1 for the NEC mix proved to be an excellent proxy for predicting daphnid survival after exposure to complex mixtures . This general approach is in line with other research with both the concentration addition and independent action models to predict mixture effects for different pesticides , although with some tendency toward moderate synergistic effects in binary mixtures.…”
Section: Discussionsupporting
confidence: 66%
“…The model proved able to make reliable predictions on both survival (if the mixture threshold was below 1) and mortality (if the mixture threshold exceeded 1) of exposed organisms. The more frequently used concentration addition and independent action models could not make reliable predictions on both survival and mortality in this real‐life situation . The problem is that these models are conceptually inappropriate to be used in an approach like this.…”
Section: Methodsmentioning
confidence: 99%
“…modeling the effect of binary metal mixtures on survival of the soil arthropod F. candida (Baas et al, 2007) and modeling the effect of a mixture of 14 PAHs on the survival of the fish Pimephales promelas (Baas et al, 2009a). The model was also used to predict the effect of surface waters contaminated with over 90 chemicals on the survival of D. magna (Baas et al, 2009b). In 34 out of 37 cases (92%), daphnid survival was predicted correctly.…”
Section: Mechanistic Mixture Studiesmentioning
confidence: 99%
“…(8) Risk assessment of mixtures in time is important as different compounds can interact and contribute to mixture toxicity even if they occur days(22) or weeks apart. (15) TKTD models for mixtures of chemicals are available, 15,59 but their relationship to standard models for toxicity of mixtures with simultaneous, constant exposure is not well established. (60) TKTD models for temporal mixtures can explain phenomena such as the sequence effect,(15) which is caused by carry-over toxicity, however the large number of model parameters needed to assess the temporal mixtures of chemicals on a catchment scale are not available yet.…”
Section: Resultsmentioning
confidence: 99%