1,1,1 Trichloroethylene is carcinogenic, 1,1,1 trichloroethane isn't. http://www.cdc.gov/niosh/npg/npgd0404.html

So you're wrong about that. It is listed as an ozone deplete, so I must ask if you have ever disconnected any emissions controls on your cars, because that causes air pollution which is much closer to home, the earth's surface.

This whole subject is moot, however, as the Montreal Convention banned its production starting in 1996.

R.