Just got back from walking the dog. On the way we passed the owner of the local lawn care company applying weed-n-feed to a lawn. AS required for safety, he was wearing full coveralls and a resirator that pretty much covered his whole face. As I watched him spraying I couldn't help but think.
If the product is unsafe enough for humans that you need to wear that level of protection and put a warning sign on the lawn when finished -- what makes us think it is safe to put into the environment at all (much less intentionally)?