The Office of the Environment measures air quality at various locations using a mobile measuring station. These measurements supplement those taken by the fixed Ostluft measuring station at the National Library in Vaduz. After a year in the center of Triesenberg, the mobile measuring station has been located at the Eintracht roundabout on Essanestrasse in Eschen since December 18, 2025. Air quality will be measured there for a year, with a focus on particulate matter and nitrogen oxides.   

Particulate matter consists of tiny dust particles with a diameter of less than 10 micrometers. It enters the air from various sources. So-called primary particulate matter is produced by the combustion of fossil fuels (gasoline, diesel, heating oil, and coal) and wood. Other primary sources include road and tire abrasion and dust stirred up by traffic. Secondary particulate matter can be formed in the atmosphere from gaseous precursor substances originating from combustion exhaust gases or agricultural processes. Nitrogen oxides are produced during combustion processes from oxygen and gaseous nitrogen. The main source of nitrogen oxides is road traffic.

The measurements taken at the Eintracht roundabout in Eschen can be viewed as weekly graphs at www.llv.li under the heading “Air quality.” Reports from previous years can also be found there. Further data, such as the concentrations of particulate matter, nitrogen oxide, and ozone at the Landesbibliot measuring station, are available at www.ostluft.ch.

Contact:
Office of the Environment
Bettina Göldi, Environmental Protection Department
T +423 236 68 91

bettina.goeldi@llv.li