Evaluation of the Laboratory Comparison Exercise for SO2, CO, O3, NO and NO2: 13-16 June 2016, Ispra

Eight Laboratories of AQUILA (Network of European Air Quality Reference Laboratories) met for a laboratory comparison exercise in Ispra (IT) to evaluate their proficiency in the analysis of inorganic gaseous pollutants (NO, NO2, SO2, CO and O3). On the basis of criteria adopted, 79.3% of the results reported by AQUILA laboratories were good both in terms of measured values and reported uncertainties. The rest of the results (21.1%) had good measured values, but the reported uncertainties were either too high (17.8%) or too small (2.9%).JRC.C.5-Air and Climat