See which fruits and veggies are most likely to contain pesticide residue

For the third straight year, strawberries top the Environmental Working Group's Dirty Dozen list of fruits and vegetables with the most pesticide residues. 

About a third of all strawberry samples had at least 10 pesticides, the study found.

The report bases its findings on nearly 39,000 U.S. Department of Agriculture tests of 47 fruits and vegetables.

It found nearly 70 percent of "conventionally grown produce" has pesticides and almost all — 98 percent — of strawberries, peaches, nectarines, cherries and apples contained at least one pesticide. 

In contrast, the EWG's Clean Fifteen list features the produce "least likely to contain pesticide residues."

The study found that fewer than one percent of avocado and sweet corn samples featured pesticides, giving avocados the top spot. 

See the full list of both categories below: 

The Dirty Dozen:

1. Strawberries
2. Spinach
3. Nectarines
4. Apples
5. Grapes
6. Peaches
7. Cherries
8. Pears
9. Tomatoes
10. Celery
11. Potatoes
12. Sweet bell peppers

The Clean Fifteen

1. Avocados
2. Sweet corn
3. Pineapples
4. Cabbages
5. Onions
6. Sweet peas, frozen
7. Papayas
8. Asparagus
9. Mangoes
10. Eggplants
11. Honeydew melons
12. Kiwis
13. Cantaloupes
14. Cauliflower
15. Broccoli

Read more on the lists here.