Every year, the Environmental Working Group (EWG) puts out two produce lists – The Dirty Dozen and The Clean 15. The Dirty Dozen is a list of produce to only eat organic because they are so laden with chemical pesticides. The Clean 15 is a list of foods to eat more safely in convention form, because testing on them has shown that they have little or no chemical pesticide residues in them when tested.
The Dirty Dozen
This list includes: strawberries, spinach, kale/collard/mustard greens, peaches, pears, nectarines, apples, grapes, hot and bell peppers, cherries, blueberries, green beans (new to the list).