I would also assume people working in the cycling industry who've been working with carbon fiber for decades would have the same exposure. The first carbon fibe

I would also assume people working in the cycling industry who've been working with carbon fiber for decades would have the same exposure. The first carbon fiber frame was made in 1975: http://www.jimlangley.net/ride/bicyclehistorywh.html http://www.jimlangley.net/ride/bicyclehistorywh.html (its at the bottom of the page in the timeline) As with all manufacturing processes, I'm pretty sure in 1975, it wasn't nearly as precise or safe it is now and am wondering how many people were exposed to these fumes. If you wanted a good control group, I'd think they would be a prime candidate to examine the effects of this on the lungs.