Directive 2008/50/EC of the European Parliament and of the Council of 21 May 2008 on ambient air quality and cleaner air for Europe (c. 50)

ANNEX XIV NATIONAL EXPOSURE REDUCTION TARGET, TARGET VALUE AND LIMIT VALUE FOR PM_2,5

B. National exposure reduction target

Exposure reduction target relative to the AEI in 2010		Year by which the exposure reduction target should be met
Initial concentration in µg/m3	Reduction target in percent	2020
< 8,5 = 8,5	0 %
> 8,5 — < 13	10 %
= 13 — < 18	15 %
= 18 — < 22	20 %
≥ 22	All appropriate measures to achieve 18 μg/m3

Where the AEI in the reference year is 8,5 µg/m³ or less the exposure reduction target shall be zero. The reduction target shall be zero also in cases where the AEI reaches the level of 8,5 µg/m³ at any point of time during the period from 2010 to 2020 and is maintained at or below that level.