I was exposed to all sorts of chemicals during my 30 years in the aerospace business. Fucking MEK, Naphtha, Trichloroethylene, Bromide, Perchloroethylene, and multiple epoxies, coolants and sealants. And of course this was back when MSDS sheets and employee health issues where not a thing. You dont need no stinking gloves !!! Who knows what organ damage this shit has done. But then again when we were kids we broke thermometers and played with the mercury !!! But with drinking water the deeper you drill your well the more natural filtering takes place. If your on municipal water, they give annual reports on contaminates. Our local towns water systems where high in Trichloroethylene, Bromide and Perch. All caused by 3 local factories dumping shit for 50 years unchecked. Those factories were part of a class action suit (which I initiated) and now our town has a multi million dollar filter system. This all happened back in 2004. But the filter systems of today do a great job on these cancer causing contaminates.