The Environmental Working Group’s updated list of foods with residue can be found here: All 48 fruits and vegetables with pesticide residue data for 2015. That is quite a lot of produce that needs to be organic for consumption.
For example, we need to consider the versatile potato. Since it is the largest crop in the United States, According to Only Organice, the average American consumes 29 pounds of French fries a year and 142 pounds of potatoes overall.
What is the load on potatoes according to EWG? The conventional potato tests positive for 35 different pesticides — more pesticides by weight than any other vegetable, according to EWG’s 2015 Dirty Dozen List. Some of these pesticides remain even after peeling and washing. It is a YIKES moment when the U.S. Department of Agriculture Pesticide Data Program lists the following pesticides on non-organic potatoes:
— 6x known or probable carcinogens
— 12 suspected hormone disruptors
— 7 neurotoxins
— 6 developmental or reproductive toxins
— 9 honeybee toxins
EWG also lists the safe 15 conventional produce: http://www.ewg.org/foodnews/clean_fifteen_list.php