I'm 6+1 and work around construction. I am an archaeological monitor and mainly watch road work trenching, etc but am around heavy equipment etc. Other than not getting run over, I've been wearing a N99 mask (also work with a bunch of smokers), try and stand down wind of work, but are there other things I should be worried about? Since I'm not an operator, I don't have much information about work place exposure. I am going to talk to my boss Monday but wondering if anyone else has been around this kind of work. Luckily I get to work from home a lot but the last few weeks I've been out in the field. Thanks!