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David Hassenzahl discusses the relative risks of eating peanut butter contaminated with aflatoxin and apple juice contaminated with UDMH, a degradation product of Alar, in the Power Point presentation in a conference in one of our earlier weeks. The following Table shows his input data. Some of the data in this table are different than those in the PowerPoint presentation. The table below contains the correct information.
Variable Units Average 5th %ile 95th %ile Distribution
Peanut butter intake g/day 11.38 2.00 31.86 Lognormal
Apple juice intake g/day 136.84 16.02 430.02 Lognormal
Aflatoxin concentration ug/kg 2.82 1.00 6.5 Lognormal
UDMH concentration ug/kg 13.75 0.5 42.00 Lognormal
Aflatoxin potency kg-day/mg 17.5 4.02 28.33 Normal
UDMH potency kg-day/mg 0.49 0.00 0.85 Normal
a. Calculate the daily cancer risk for a child who weighs 20 kg and who eats an average amount of peanut butter. Please use the average values for the required parameters.
b. Do the same for a 20 kg child who drinks an average amount of apple juice.
NOTE: Daily cancer risk = Intake x Concentration x Potency / Body Weight
c. Calculate the maximum daily cancer risks for peanut butter and apple juice based on the 95th percentiles.
d. Discuss your results briefly.
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