This is why people eat organic food. Now if you want some other curious links to pesticides and weedkillers, look at Stephanie Seneffs research.
the USDA's list of allowed pesticides has quite a few pesticides that are dangerous to humans, such as various coppers, elemental sulfur, boric acid, the list is here: https://www.ecfr.gov/cgi-bin/text-idx?c=ecfr&SID=9874504b6f1...