I think i would trust most private organizations for testing than government ones here. Anyone know how much it costs to have a sample tested at SGS?
in the end though, 15% seems VERY low in my opinion just from personal observation. Also the rate of scary chemicals being sprayed seems to go up further from city centers.
some very heavy pesticide crops here are:
rice (for snails mostly i believe, also bad HM contam), wax apple, mango, watermelon, Annona species (sugar apples) etc. Usually heavy bug targets. Banana i actually dont see sprayed as much as other crops. Taiwan uses a lot of bagging techniques for fruit, and that does wonders for macro animal damage, but bad for garbage/pollution still.
If you are truly worried, your only real option is importing and growing your own. I am not sure how strict the organic folks are here, i will be getting into that mess early next year myself to see about certifying our farm organic. One thing to consider though is in places like Canada you actually need to prove soil quality and cleanliness for XX years (i forget exactly how many now, but i think it was 3-7 years). Taiwan is so insanely polluted, even with the gift of gods typhoons doing a cleanup on the island every now and then, that the soil itself is bad. Heavy metal pollution can be really bad in some areas (old factory areas/cities).
Just a guess, but I think the only real organic (meaning actually clean, not just “not sprayed much”) is going to be from very specific areas, probably mountainous. The amount of time and energy to actually take out pollution from soil is incredible, and i honestly do not see this happening much at all here. Our farm will be “organic” but i doubt we would get certification due to neighbors spraying and contaminating our crops/soil.