Wherever you source your fruits and vegetables, there's a chance they are harbouring pesticides. For harder fruits and vegetables, a quick scrub under some running water can do the trick.
This video from the Consumer Reports YouTube channel shares some tips for making sure your produce is clean and ready to eat. Waxier fruits and harder vegetables can sometimes hold on to pesticides longer than other kinds, so it's a good idea to give them a nice scrub with a dedicated produce brush. Anything clinging on will be scrubbed away.
Buying organic may help, but you're never truly in the clear. If you're still concerned about what's on your fruits and veggies, buy them from local farmers where you can ask how they control pests and what they use. No matter what, eating fruits and vegetables is good for you, so don't let some pesticides stop you.