Every year the Environmental Working Group releases a Clean Fifteen list and a Dirty Dozen list, both of which detail pesticide residues on conventionally grown fruits and vegetables. Here are the updated lists for 2016.
The edible parts of thick-skinned fruits, such as avocados and bananas, are fairly protected from pesticide residue.
Photo by Dani Vincek/Fotolia
For the first time in five years, strawberries topped the list of the most contaminated conventionally grown produce.