Without pesticides half the world would be dead.
Look, I understand your concern. Keep your kids in....or move. You live in an agricultural area. I fought my father in law (on the above mentioned commercial orchard) about pesticides, because he was spraying them about every week! And, more than the rest of the commercial orchards in the area. You wouldn't believe the stuff they used in the 50's....still have a can in the Orchard shop, with a BIG BLACK X on it......or maybe they finally dumped it....in the back 40, where they dumped EVERYTHING 40 years ago!
San Francisco is not an agricultural area! It's a city.