Originally Posted by
BillyD
Well if dodging cars wasn't enough, from today's NYTimes now we have reason to be conscious of the air we're breathing while riding.
https://www.nytimes.com/2017/07/06/w...-air.html?_r=0
Not that being concerned about the air is something we never thought of, but this gives some of us a little more to worry about . . . you know, in addition to waving, flats, BB creaks, CF explosions, and cars.

Wasn't there already a study that the air in a car is no better, and worse because the occupants aren't getting any exercise while getting that exposure?
Also: