there is a question of ingestion while pedaling through the congestion...
what sort of damage do cyclists get from riding in the fumes of urban traffic?
years ago I thought this must be amplified for the Urban Bicycle Messenger
I am curious about the "LIFERS"
if the messengers who have been hammering on the streets for decades
do they have any health side effects related to breathing in all the car exhaust?
sort of like a messenger's black lung
Let's Go Ride A Bike brings up this topic for everyday riders
I would think the messenger would show us everyday folks whether we are at risk or not
What is Black Lung?