Whether total pesticide load (however you want to measure that) is higher or lower for organic vs conventional, varies widely with crop, location and farming method.
There are toxic organic pesticides like copper-based compounds that persist in the soil. And things like strawberry fields are fumigated with methyl bromide regardless of organic or conventional.
There is not perfect data on the harmfulness of many synthetic pesticides, so it's really hard to make a great judgment on whether it's worse or better for you - unless you have general faith that petroleum derived mystery cocktails are pretty much always going to be harmful.
It's all bad when it comes down to it, we should prefer something like permaculture.