Evaluation of the Laboratory Comparison Exercise for SO2, CO, O3, NO and NO2, 3rd-6th October 2011
From the 03rd to the 06th of October 2011 in Ispra (IT), 9 Laboratories of AQUILA (Network of European Air Quality Reference Laboratories) met for a laboratory comparison exercise to evaluate their proficiency in the analysis of inorganic gaseous pollutants covered by European Directive about air quality (SO2, CO, NO, NO2 and O3).
The proficiency evaluation, where each participant’s bias was compared to two criteria, provides information on the current situation and capabilities to the European Commission and can be used by participants in their quality control system.
On the basis of criteria imposed by the European Commission, 78.5% of the results reported by AQUILA laboratories were good both in terms of measured values and reported uncertainties. Another 20.1% of the results had good measured values, but the reported uncertainties were either too high (12.5%) or too small (7.6%). Four values have been classified in category ‘5’ (1.3%).
Comparability of results among AQUILA participants at the highest concentration level, excluding outliers, is acceptable in SO2, CO and O3 measurements while NO and NO2 measurement methods showed less satisfactory results.
BARBIERE Maurizio;
LAGLER Friedrich;
2012-08-06
Publications Office of the European Union
JRC71998
978-92-79-25366-9,
1831-9424,
EUR 25386 EN,
OP LB-NA-25386-EN-N,
https://publications.jrc.ec.europa.eu/repository/handle/JRC71998,
10.2788/33270,
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