Hi cyclelops, if the worry doesn't kill us all the chemicals in food will.
Any fruit or vegetables we buy from the supermarket, gets a good wash under the tap before we eat it, i hope it helps as most of the stuff in our supermarkets are imported crap and the chemicals that are banned here for use for our farmers are on the imported muck, it was on tv a while back were
a scientist tested the imported fruits and they had that banned substance on them.
Even the butchers put some chemical on the meat to make it appear to be fresh for longer, it is a worry really.