Comment

Federal Judge: Confederate Emblem on Mississippi Flag Is "Anti-American"

275
calochortus4/13/2016 7:09:20 pm PDT

re: #274 Decatur Deb

IIRC, hydrogen sulfide has a strong odor, but a heavy concentration anesthetizes the sense of smell rather quickly—thus it’s rated as having “poor warning characteristics”.

I was about to post the same thing. Fortunately I checked the new posts before I did.