Series: NILU OR 02/2015
NILU OR 2/2015 (pdf)
Summary: Parallel measurements of BTEX with diffusive sampling in Oslo confirmed large deviations between the two involved laboratories NILU and Molab. The following investigation identified that Molab was using wrong uptake rates in their final calculation of the results. All BTEX results delivered by Molab between 2008 and 2014 have to be revised downwards with factors between 2,4 and 2,9.