There are two air quality measuring stations in the Saanenland. Standing on the promenade in Gstaad, a station has been in operation since 1990 to measure nitrogen dioxide (NO2). The NO2 load has been halved in the past few years, due mainly to two things.
Firstly, engine technology has greatly improved and particle filters have been installed in diesel vehicles.As a result, fewer pollutants are produced and released into the atmosphere. Secondly, the reduction in the village centre can be attributed to the opening of the bypass road in 1997.