The Dirty Dozen

These twelve fruits and vegetables are most contaminated by pesticide use and should be bought organically.
Let this chart dictate your allocation of organic vs. non-organic purchases.

Order of contamination is as follows:
1. Apples
2. Celery
3. Strawberries
4. Peaches
5. Spinach
6. Nectarines
7. Grapes
8. Sweet bell peppers
9. Potatoes
10. Blueberries
11. Lettuce
12. Kale/collard greens