Less pollution, pollution especially PM smaller than 2.5 you get from the tail o...

		Scipio_Afri on May 9, 2020 \| parent \| context \| favorite \| on: U.S. field hospitals stand down, most without trea... Less pollution, pollution especially PM smaller than 2.5 you get from the tail of an exhaust pipe sitting in front of you in traffic is not good for cardiovascular health and also is known to cause strokes. We have a significant decline in pollution and people driving.