You put gas in the gas tank, you turn the key, and you go. Trouble is, not all the gas you put in the car is making it go. Some of it comes out of the tailpipe as exhaust. And you thought exhaust just sort of disappeared . . . It comes back in the form of all sorts of problems.
Motor vehicles are the largest source of ozone-forming pollutants in Vermont.
Well, every summer Vermont's ozone levels come close to exceeding U.S. standards. And although the levels may still be within our standards, in lots of other places you'd be told to stay inside. My mom says the air is cleaner now than when she was a kid. Levels of some air pollutants in Vermont have declined significantly. But motor vehicles are now the largest source of toxic and cancer-causing air pollutants in Vermont.