How fast to ride your bike to breathe the least pollution

Alexander Bigazzi, a UBC civil engineering professor, found exerting too much energy while walking or biking on city streets can increase the amount of airborne pollutants you inhale, Fast Company reported.

“I think it’s something people should be considering, but at the same time, I don’t think they need to overly fixate on what exact speed they should be going,” Bigazzi said. “I think it’s more about people being aware that when they’re vigorously exercising, the volume of air they inhale over a trip is going to be several times larger than if they were going at a slower pace.”