In the latest report about pesticide residues, the Environmental Working Group says that 70% of conventionally grown fruits and vegetables contain up to 230 different pesticides or their breakdown products.
The analysis, based on produce samples tested by the U.S. Department of Agriculture, found that strawberries and spinach contained the highest amounts of pesticide residues. One sample of strawberries, for example, tested positive for 20 different pesticides, and spinach contained nearly twice the pesticide residue by weight than any other fruit or vegetable. After strawberries and spinach come nectarines, apples, grapes, peaches, cherries, pears, tomatoes, celery, potatoes and sweet bell peppers. More than 98% of peaches, cherries and apples contained at least one pesticide.