What time of day is pollution at its lowest?

Question

Im looking for a good time to workout outside

Answer 1

Early morning is generally considered the best in terms of air pollution.

Answer 2

Early morning usually, because there are less cars on the road and there are less factories ect.. open at this time. It really depends on where you live though. hope this helped!~

Answer 3

before we wake up. because no one is awake to pollute the surroundings...