Spatial distribution of nitrogen dioxide concentration on two profiles in Tyrol

From January 2004 to January 2005, measurements of the concentration of nitrogen dioxide (NO2) were carried out on two profiles in northern Tyrol with passive collectors. The aim of the measurements was to measure the spatial concentration distribution at sites with different horizontal and vertical distances from the Inn Valley or of major nitric oxide emitters. The comparison with NO2 measurements with continuous measuring instruments (this is the reference method according to the Immissionsschutzgesetz Luft — IG-L) at the measuring stations operated in accordance with IG-L by the Office of the Tyrolean Government and the Federal Environment Agency also allows statements on the comparability of NO2 measurement by passive collector for continuous measurement by means of chemiluminescence.