With airCHeck you can look up the current air quality in Switzerland an in the Principality of Liechtenstein. Maps and monitoring stations show it to you. In addition, airCHeck informs about the health effects and what one should be aware of in case of high air pollution. airCHeck • Informs about the current air quality at your location or in any other arbitrary site in Switzerland and Lichtenstein. • Shows the current air pollution index and fine particle, ozone and nitrogen dioxide concentra