Community Research and Development Information Service - CORDIS


A quality assurance methodology has been developed for the control of European air quality monitoring networks, based on the use of gas mixture generators. These have been used in two ways: generating mixtures at a fixed bench, for the control of national reference standards, and in a mobile laboratory, for the control of the routine measurements in monitoring stations allowing, in this case, the separate tests of the sampling lines and analyser readings. The results obtained in the two ways for SO(2), NO and NO(2) checks in 12 member states and 36 monitoring stations, informed on causes of deviations, efficiency of national quality programmes and faults of standards traceability in some national calibration chains.

Additional information

Authors: PAYRISSAT M, JRC Ispra (IT)
Bibliographic Reference: Paper presented: Convegno Nazionale il Monitoraggio dell 'Inquinamento Atmosferico, Modena (IT), November 13-14, 1996
Availability: Available from (1) as Paper EN 40215 ORA
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