75 A couple weeks before the train derailment in East Palestine, Ohio, the DC decides to update its toxicological profile on Vinyl Chloride. The update changes the lethal exposure from 100PPM to 100,000PPM. (twitter.com) posted 1 year ago by undine53 1 year ago by undine53 +76 / -1 7 comments share 7 comments share save hide report block hide replies
In metric...Yes.