Skepticism, Science & Pseudoscience

Which pesticides have been shown to build up over time that are linked to cancer? That is a fairly significant claim which should be well documented but I am not aware of any pesticide like that so I would like to see your citations for that. In general pesticides break down over time. Derivatives of some pesticides can stick around for a while and then with continued use of the original pesticide the derivatives could build up. So it would be good to know when that is occurring and if the derivatives are showing up in food at levels which could be carcinogenic. The example you cite is about the risk to people applying the pesticide - not from food residues. There is a huge difference in potential exposure risk. Risk is a function of toxicity plus exposure.