Madrid reduces pollution changing the way of measure it

The national newspaper El País has published an extended report about the situation of the air pollution in Madrid and the changes of the location of the measuring station. It also explains the "real" ways that cities like Barcelona, París, Roma, Londres y Berlin reduce their pollution.

Madrid reduces the pollution arround 26% only in one year. The way to do it? Changing the location of the measuring stations: moving some of them to green areas and deleting others that were in the places with higher levels of pollution.

Information sent by Iván López Munuera, Uriel Fogué and Pep Tornabell.

Here you can see and old post .