Something To Wonder About... Especially Metal Allergies

Would the regular exposure to acetone be having some effect, either by breathing the vapour or through the skin? I guess that there is industrial data safety information published on this powerful organic solvent.

I have absolutely no sense of smell.
I did an environmental report on the disposal of industrial organic solvents, which included tri chlorethylene. This solvent was used for cleaning engine parts for the F/A 18 jet fighter. I was exposed to a 3,000 liter open container of this rather mean solvent. It is poisonous AND carcinogenic to the liver. The powerful fans for controlling vapour had to be disabled at the time of inspection.

MayoClinic.com says:

" Nickel allergy is one of the most common causes of allergic contact dermatitis â€" an itchy rash that appears when your skin touches a usually harmless substance.

Nickel allergy is commonly associated with earrings and other jewelry, particularly jewelry associated with body piercings. But nickel can be found in many everyday items â€" from coins to zippers, from cellphones to eyeglass frames.

Nickel allergy can affect people of all ages. A nickel allergy usually develops after repeated or prolonged exposure to items containing nickel. Treatments can reduce the symptoms of nickel allergy. Once you develop nickel allergy, however, you will always be sensitive to the metal and need to avoid contact."

My understanding (and I am a metallurgist, btw) is that *everyone* will eventually become allergic to nickel with enough exposure. However, individuals vary in how much exposure that requires.

Poison ivy works the same way - you may spend years not getting it, but once you start, you get it every time.