Not really an AIBU, more WILLAT (will I look like a twat)?
I walk to work for 35-45 mins a day, depending if I've had to drop DD at school, then walk home 2-3 days a week as well, and it's nearly all on main roads with lots of traffic.
I'm worried that the benefits of walking are being negated by all the pollution, plus I get a lot of blocked nose/sore throat/sinus problems.
But, on the other hand, I don't want to look like a fucking weirdo...