The Zuid-Holland provincial authority has drawn up a Provincial Air Quality Action Plan and asked CE Delft to analyse the effectiveness of the constituent measures in terms of cutting emissions of nitrogen dioxide (NOx) and airborne particulates (PM10).
The analysis focused on two categories of measures:
Impact of A-list measures
The sum total of A-list measures will lead to estimated emission cuts of over 380 tonnes NOx and 27 tonnes PM10. Over 90% of this reduction potential can be achieved with just 4 of the 19 A-list measures:
Impact of B-list measures
The sum total of B-list measures will lead to estimated cuts of 9 tonnes NOx and 0.5 tonne PM10. Compared with the A-list measures, the B-list package offers far less reduction potential. In part, this is because some of the proposed measures were too sketchy to calculate their likely impact. We do not anticipate them having any major impact, though. No independent impact was ascribed to several other measures, moreover, as they are too aligned with measures from the A list, with their impact already effectively included in that review.