Well Neil you certainly gave me a challenge there .( I have no qualifications in chemistry)
Googling came up with so much info that this post would fill the page with web addresses. Fortunately I found one site which which is jampacked with links to scientific info. I spent 2 hours fast reading it and tried some of the many links, and didn't even get to scan half of it. If you have a week to spare you might be able to look at all the info provided
EHN's General Links / F
The canadian Lung Association had some useful sites too - where you can watch videos. Seems that 'Fragrance Free' hospitals and workplaces are being set up there. (Who'd have thought that the canadians would be aware of such a thing as air pollution - you know what I mean - having all those lovely trees)
The New Brunswick Lung Association - Workplaces
If after reading some of this ENORMOUS amount of info, you want to reduce the perfumes/poison in your home - try this link
Guide to Less Toxic Products