Key to variables V , uncertainties U , and dependencies D in Figure

Variation over space and time in the concentrations of pesticide in insects 

Extrapolation from field studies with other pesticides, and/or sampling uncertainty due to limited numbers of field sites 

Intraspecies variation in food requirement and dietary composition variation between individuals and over time in the proportion of food that is contaminated 

Uncertainty in estimating food intake from body weight and energy content of food assumptions in estimating proportion of food that is contaminated 

Variation in dietary exposure between individuals and over time (due to VI and V2) 

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Key to variables (V), uncertainties (U), and dependencies (D) in Figure 2.3 (Note that the lists are illustrative, not exhaustive)... 

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