The Health-Optimal Route Planner
The Health-Optimal Route Planner lets you choose the healthiest path between any two given locations in the city of Zurich, Switzerland. Using high-resolution air pollution maps, the app computes the shortest path between two locations and a healthier alternative, which reduces the exposure to air pollutants. Further, it provides information about the route lengths and the expected exposure reduction. Perfect for pedestrians, cyclists, and urban dwellers.
The application is available for free on the iTunes App Store and the Google Play Store as hRouting — The Health-Optimal Route Planner. The source code is available on GitHub under the GNU GPL license v3.