According to Our World in Data, "Evidence suggests that residue standards and limits are strongly enforced. A US-based study investigated the ten most frequently identified pesticide residues across twelve commodity groups from the United States Department of Agriculture (USDA) Pesticide Data Program (PDP) database. The authors searched USDA database results for nationwide residue assessments from 2000 to 2008. All pesticide exposure estimates were found to be well below the defined 'chronic reference doses' (RfDs). Only one product had a residue level greater than 1% of the RfDs (and only just, measured in at 2% of RfDs). The majority (75 percent) of commodities measured below 0.01 percent of RfD limits. For context, this means residue levels were one million times lower than the threshold for which there are observable effects to exposure."