3 ms·methane combustion _does_ release PM2.5by Faaak 3y agomethane combustion _does_ release PM2.5bell-cot 3y agoIf you are close enough to experience a PM2.5 spike from the actual exhaust, then you probably have far worse health issues.chmod600 3y agoWhat particles? Why?Faaak 3y agobasically soot, as combustion is rarely a perfect CO₂ + H₂O