Basically the dirty dozen and the clean 15 refer to the fruits and vegetables that are the most and least contaminated by pesticide use,
The list was updated in 2013 but here is a photo of the original to get you started. The new list just has more fruit and vege added.
I just went online and found this list. I carry it in my wallet and it's also on our fridge as I like to refer back to it when my memory fails me. ;-)
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