It’s true that in many cities, air quality is better now than it was decades ago. But urban air quality is still a health risk in far too many places. Premature death from air pollution is about 50 percent more common in cities than in rural areas. On days with higher air pollution, stock returns are lower, and students perform worse on exams. Companies in highly polluted cities have to offer a form of “hazard pay.” And with about 1.5 million people relocating to urban centers every week, air quality will remain a persistent and urgent problem for city leaders around the world.
EDF has been working for over three years to demonstrate how hyperlocal air quality monitoring can help local officials better identify and address dirty air. This week, at the 2019 C40 World Mayors Summit in Copenhagen, we released a guide that captures our experiences from groundbreaking monitoring pilots, and the lessons we learned along the way: Making the Invisible Visible: A guide for mapping hyperlocal air pollution to drive clean air action.