‘Forever chemicals’ sprayed on almonds, grapes, tomatoes and other crops as activists warn of ‘obvious problem’ ‘Forever chemicals’ sprayed on almonds, grapes, tomatoes and other crops as activists warn of ‘obvious problem’ California farms applied an average of 2.5m lbs of PFAS “forever chemicals” per year on cropland from 2018 to 2023, or a total of about 15m lbs, a new review of state records shows. The chemicals are added to pesticides that are sprayed on crops such as almonds, pistachios,