This is probably a question I should have asked myself a bit earlier, before starting my InMoov project.
Because I've been printing during 400 hours while sitting and working just 1m away from the printer...
But anyway, whatever the answer would have been, I would still have done it.

So is there any researches or studies made in that field ?
I did some web searches about that subject and it seems there has been a few...

I won't do a resume here because I prefer everyone to make his own opinion.
Instead I prefer to point you at the links where I found interesting readings about it.

Here they are :

http://www.sciencedirect.com/science/article/pii/S1352231013005086

http://voxelfab.com/blog/2013/07/is-desktop-3d-printing-safe-will-it-harm-your-health-ultrafine-particle-emissions-and-vapors/

http://www.greenbiz.com/blog/2013/07/19/3d-printing-environmental-win

And in French :

http://www.lemonde.fr/sciences/article/2013/08/26/le-versant-sombre-des-imprimantes-3d_3466650_1650684.html

Have a nice reading but don't get mad and stop 3D print ! Just be aware...