What Time of Day Is Air Pollution Lowest?

My intuition has always been that there is least air pollution at night because there are fewer cars on the road and fewer factories humming at that time of day.   Pollution Time of Day Guesses   Apparently I’m not alone: 139 voted for their guess about what time of day … Read more

Smart Air is a social enterprise that creates simple, no-nonsense air purifier and provides free education to protect people’s health from the effects of air pollution. We are proud to be the only certified B-Corp dedicated to fighting air pollution.