William,
Had my spelling wrong (not an unusual occurance) but, I remember the labels warning about this stuff in years past,

http://www.epa.gov/ttn/atw/hlthef/trichlor.html

Haven't seen anything labeled with it in a few years. The solvent that keeps spray paint from hardening in the can is the same one used in zip strip, and nasty as hell, too. Methylene cloride? About zero safe yearly exposure, if memory serves.

I exceeded that amount in several years. Hope for the best, eh?

Best,
Ted