James W. Cooper Quotes

Ames applied this technique to any number of compounds, but one of the most interesting pieces of work was his 1990 paper on "Dietary Pesticides."5 Ames recognized that most plants produced their own pesticides and compared their prevalence to the residues of synthetic pesticides. Surprisingly, they found that 99.99% of the pesticides in the American diet were from plants, and only .01% were from synthetic sources. They noted that only 52 of those naturally occurring pesticides had been tested for carcinogenicity, and that 27 of those were indeed carcinogenic. So, if more than half of the tested natural pesticides were carcinogenic and in far greater concentration than those applied by man, they then concluded that the hazards from synthetic pesticides were probably insignificant.