The dirty dozen.

...Four exams down, and four more to go! Phew.

The twelve most contaminated fruits and veggies (regarding pesticides and herbicides): Peaches, Apples, Sweet Bell Peppers, Celery, Nectarines, Strawberries, Cherries, Pears, Grapes, Spinach, Lettuce, and Potatoes.

If you buy organic foods, aim for these ones!

The twelve least likely to be contaminated fruits and veggies: Onions, Avocado, Frozen Corn, Pineapples, Mango, Asparagus, Frozen Peas, Kiwis, Bananas, Cabbage, Broccoli, and Papayas.

These ones you don't have to worry about buying organic (or even washing too much, for that matter).

Source: organics.com