The 2018 Dirty Dozen and Clean Fifteen

dirty dozen

Every year the nonprofit Environmental Working Group releases its rankings of the top 48 most popular fruits and vegetables that have the lowest and highest pesticide loads. In order to create the lists, which help families decide when it makes the most sense to buy organic produce, the group analyzes data compiled by the USDA after testing more than 35,200 produce samples.

Topping the list of the Dirty Dozen for the third year in a row are strawberries. Even when rinsed in the field and at home, conventional strawberries contained an average of 7.8 different pesticides per sample, compared to 2.1 per sample in all other tested produce, according to the EWG. Conventional strawberries have been shown to contain chemicals linked to cancer, hormone disruption, and reproductive issues, amongst others.

Non-organic spinach has seen a rise in pesticide use, taking the number two spot on the list two years in a row.

According to Sonya Lunder, a senior analyst at the EWG, “Fruits and vegetables are important for your health, but for those on the Dirty Dozen, we recommend buying the organic version if you want to avoid pesticides on your food. You can feel confident that conventionally grown fruits and veggies on the Clean Fifteen list have very little pesticide contamination.”

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
  • + Hot Peppers

Clean Fifteen:

  1. Avocados
  2. Sweet Corn*
  3. Pineapples
  4. Cabbage
  5. Onions
  6. Sweet Peas frozen
  7. Papayas*
  8. Asparagus
  9. Mangos
  10. Eggplant
  11. Honeydew Melons
  12. Kiwis
  13. Cantaloupes
  14. Cauliflower
  15. Broccoli

* A small amount of sweet corn, papaya and summer squash sold in the United States is produced from genetically modified seeds. Buy organic varieties of these crops if you want to avoid genetically modified produce.

For more information about the Dirty Dozen and Clean Fifteen, and to download the EWG’s free Shopper’s Guide to Pesticides in Produce, visit