Originally Posted by
ad6mj
These are interesting numbers. It doesn't make riding a bus or taxi very attractive. I'm somewhat confused why a cyclist wouldn't inhale as much, or even more stuff if they are traveling the same route and involved in aerobic exercise?
I've always figured you get it worse in a car simply because you're in an enclosed space that's drawing its "fresh" air from the street.
More importantly, when your stopped behind another vehicle, the particulates and other gasses have more time to collect in your car's interior.