Measurements of the scrubber efficiency were done onboard a RoPax ship. Measurements showed that scrubber reduce effectively the SO2 concentration from the exhaust gas and also concentration of NOx was reduced. CO and hydrocarbon concentrations were reduced by diesel oxidant catalyst located before scrubber.

Measurements were made in co-operation between Finnish Meteorological Institute (FMI), Tampere University of Technology (TUT) and VTT Technical Research Centre of Finland Ltd. (VTT).

Read more of the results  from the new report.