Air pollution is the world’s largest single environmental health risk according the the World Health Organization. Data about the pollution is publicly available in almost any location. Companies such as Google and Apple have started showing the pollution information in the weather app of Android and iOS devices. The pollution information that they provide is usually the concentration level of a certain pollutant, or an index that makes easier for people to understand the risk level. The problem with this method is that it gives the risk level considering just the pollutant(s) concentration but does not involve any information about the person.