Key points from article :
Peaks in pollution add significantly to people’s overall exposure level.
Air pollution levels change up to 8X from street to street in a city.
How much can a mask reduce pollution exposure while cycling?
Plume Labs used Strava Club to what they might be breathing over the course of a week.
Then figured out reductions in exposure by wearing a R-PUR Nano mask.
New York City had the cleanest air breathed overall.
With a mask, concentrations of all pollutants are reduced to negligible amounts.
