12. Kale/collard greens
One sample of kale and collard greens contained 10 pesticides.
Lettuce is one of the most likely vegetables to retain pesticide contamination.
Domestic blueberries contained more pesticides than imported ones.
Of potatoes tested by the group, 91.4 percent tested positive for pesticides.
8. Sweet bell peppers
Over 69 percent of sweet bell peppers contained multiple pesticides - one sample contained 13.
Imported grapes had 14 pesticides detected on a single sample, while domestic grapes contained 13.
Every sample of imported nectarines tested positive for pesticides, with 90.8 percent containing traces of two or more pesticides.
One sample of spinach had 66 pesticides.
Peaches have typically been treated with more pesticides than any other produce, with combinations of up to 57 pesticides. Out of all peaches tested, 85.6 percent contained traces of two or more pesticides.
Thirteen pesticides were detected on a single strawberry sample.
Ninety-six percent of celery samples tested positive for pesticides. A single celery sample was contaminated with 13 pesticides.
Will an apple a day keep the doctor away? One of the most widely consumed fruits is also the most covered in pesticides, with 97.8 percent testing positive and 92 percent containing 2 or more pesticide residues.