I've been spending less and less time out during rush hour in my city, and it's gotten to the point that just standing near a car with it's engine running for a

I've been spending less and less time out during rush hour in my city, and it's gotten to the point that just standing near a car with it's engine running for a few minutes can really make me feel... "off". Not sick or anything, just a kind of "my body knows that breathing these fumes is not a good thing". It makes me wonder how I didn't even notice it for so many decades. But absolutely, we need to get smog out of the places where people spend the majority of their days, if only for an improved quality of life.