Figure 5

Frequency distribution of model distribution ratios (MDR) for "most sensitive endpoints". MDR was calculated from non-censored EC₅₀ values of the four endpoints Daphnia and fish acute toxicity as well as algal and Lemna growth inhibition (total n = 230) based on the data set compiling the lowest toxicity measures within each endpoint. Black represents products containing active substances with similar and white those with at least two active substances with dissimilar pesticidal modes of action. MDR values smaller than 1 indicate that the product is less and MDR values greater than 1 indicate that the product is more toxic than predicted by concentration addition, respectively.