My lawn clippings but... not my lawn clippings...

Hey all.

So my dad has these guys come to our house to mow the lawn. I thought it would be a good idea to have them put the grass clippings in these buckets so that I could use them for mulch.

I just realized that they mow other people's lawns as well, and that most people use herbicides/pesticides on their lawns, and my grass clippings were in the same lawn mower bag that those peoples grass would be in.

So in your opinion do you think that my lawns grass clippings are still o.k. to use? Or is there a high possibility that they have been contaminated with carcinogenic chemicals from the other folks grass having been in these guys' lawn mower?

Thanks in advance!

It's a very small amount. I'd be more concerned with the air and ground water.

There are contaminants all over the place. You must decide for yourself what level is tolerable.

I wouldn't be concerned about environmental contaminants.
I would be a bit worried about systemic herbicides though.