RE: Time to stop using CA/CA+ - breathing problems
Well ordinary table salt is inorganic ... and within reason is easily disposed of as required. CA is organic, which of course simply means it contains carbon.
Someone, perhaps you, suggested that CA residues accumulate in fat tissue. That doesn't necessarily mean it's toxic, but it does of course have much to do with the kinetics of its disposal. Both European and US authorities have found no evidence that CA is directly toxic - it is for example used in dental and medical procedures - mostly tissue closure.
However the stuff is sensitizing to many people - I have ended up in the emergency room myself after its use when I was too lazy to open the garage door and get my fans going. So I have reverted to as little use of the thin stuff as possible and mostly build with good old Titebond and epoxies of varying cure rates. Definitely better safe than sorry!
Cheers.