The implementation phase of the CATCH project in Suceava included the installation of emission reduction systems on 5 cars in the municipality's car fleet and 10 Euro 2 minibuses in the local public transport company's fleet.

The emissions reductions for the system on a Euro 2 vehicle were good, with a 36% reduction in CO and an 89% reduction in HC. Even though emission reductions were good, new Euro 3 vehicles available in the city are already equipped with this type of system and are considered more accessible and more efficient for emission reductions than re-equipping the older vehicles that are already in operation.

Fitting particulate filters to municipal vehicles is not a solution for reducing traffic emissions as the results from these experiments were not particularly good, but the fitting of particulate filters to all existing minibuses could be a mid term solution for the improvement of air quality in the city centre as these vehicles responded better to the technology.

Further details are available in chapter 9 of the CATCH Evaluation Report