EQA scheme for immission measurement 2015

The results of this interlaboratory test are summarised in the report ‘Ringversuch zur Immissionsmessung 2015’. The competence in the measurement of ozone (O3) and nitrogen oxides (NO and NO2) was tested. The measurement results of all 11 participating organisations were subjected to the same statistical evaluation procedures as foreseen for the EQASs of the European Reference Laboratories: according to the ‘Protocol for intercomparison exercises’, AQUILA document N37. Since February 2010, the Federal Environment Agency has regularly offered the operators of national and international air quality networks, as well as measuring instrument manufacturers, civil engineers and laboratories for immission measurements the opportunity to check the measurement accuracy of their systems for different air pollutants in interlaboratory tests. In 2015, the interlaboratory test for immission measurements took place for the first time at the new interlaboratory test facility at Handelskai.