"..results show that the mutagen potential of the particle emissions of rapeseed oil fuel is only half so high compared with Diesel fuel.."
http://biodiesel.infopop.cc/eve/forums/a/tpc/f/159605551/m/1031054912
http://biodiesel.infopop.cc/eve/forums/a/tpc/f/159605551/m/1031054912