Romain Lacombe trained for a marathon in his hometown of Paris. And as he ran through the rush hour traffic, past all the cars, he wondered what he was doing to his body.
There were gadgets with which he could count his steps or check his pulse. But nothing that showed him at a glance whether the air was just good enough for such a training.
So three years ago he and a college friend founded Plume Labs to change that. “We want to make it as easy for people to estimate the air quality as the weather forecast,” emphasizes Lacombe. “You take an umbrella with you when it’s supposed to rain. And you can adjust your daily routines in the same way if the air is rather bad. “