FYI: Indoor Air Alert: Ozone Reacts with Human Skin to Produce Potential Irritants

[Guest guest]

FYI with quotes

" The jury's still out on some of these oxidation products. Four-OPA

might be of concern, some products that remain on skin might be

irritating. " And it may be that the products have some kind of

additive effect.

http://www.scientificamerican.com/article.cfm?id=ozone-reacts-with-human-skin-to\

-produce-irritants & sc=CAT_ENV_20090825

....when ozone reacts with skin oils you get a series of products,

some of which have not been previously identified.

....it appears that squalene is the primary antioxidant protecting the

skin from ozone, not vitamin E or other chemicals.

....a tool for detecting volatile organic compounds in air at levels

of as little as a few parts per trillion­to determine what appeared

after the squalene and ozone interacted. The interaction immediately

produced acetone, geranyl acetone, hydroxy acetone and a compound

known as 6-MHO­none of which are considered cause for health concern.

But some of those products go on to interact with yet more ozone in

the air to form dicarbonyls­the aforementioned 4-OPA, plus

1,4-butanedial, 4-MON and 4-MOD. And it is these that might be cause

for concern.

Personal note: Acetone is not safe. The quantity generated like is

safe " enough. "

.... Some researchers have pinned the blame on indoor air pollution

and a study last year showed that when outdoor ozone levels rose, the

number of people inside suffering from so-called " sick building

syndrome " also increased.