your best option, set up an illegal lathe shop :-)
seriously, they can not poison you as you meaning..
people don't pour coolant on yard..
I believe only you can complain is noise.. if real noise is there..
if yards are 1 acre or larger, then possible you don't hear more like cars are on the street making noise..
the airborne stuff youre mentioning, almost not exist..
when you sanding metal, example sanding a tolerance shaft, the metal particles, you call airborne, don't makes longer distance than a couple of inches..
why would you sue someone, who try to make his own life to working?
indeed you trying to stop him work, fihure out how you caould make him something that benefiting you..
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you can test very simple way how long the airborne stuff can fly..
grab a handful sand and let see if you drop in your garage behind closed door, will it travel to the neighbor?
about odor...
if you eating chicken, then you can produce odor.. :-)
probably your neighbor wont smell that...
its likely makes no sense at all..