Peter Attia· MD
so again um a PM 2.5 refers to any particulate matter that is inhaled in the air that is that size or smaller now are there some microplastics or micro nanoplastics that fit that description yes but most are not so most PM 2.5S um are not microplastics I forget the exact number I know it's somewhere uh we did look it up it's it's on the order of a few percent um I would say that the greatest contribution to PM 2.5S probably come from air pollution so anything that has to do with you know you know when there's a fire you know burning wood obviously burning fossil fuels but coal being hands down the leader of this I mean natural gas combustion um produces much less of this