In a polluted city, when is the best time to go running?

Question

is it say at 9pm when most people are home from work and factories etc are close? midnight, when it's dead? or early morning say 6pm before morning traffic.

it kind of defeats the purpose of running for health if i'm taking in polluted air. so pls help?

Answer 1

Early in the morning is the best, like you say before the morning traffic, or if you have trails nearby, run there.  Sometimes we drive out of the town to run in the country, its fresh, clean air and the scenery is beautiful.  Worth the drive.

Answer 2

Early in the morning, before 6 AM. Statistically the best time to run is from 12 AM to 6 AM. The worst time is from 4 PM to 8 PM.