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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 · European Union

| 24-hour average PM10 | Annual average PM10 | Annual average PM2,5 (1) Upper assessment threshold | 70 % of limit value (35 μg/m3, not to be exceeded more than 35 times in any calendar year) | 70 % of limit value (28 μg/m3) | 70 % of limit value (17 μg/m3) Lower assessment threshold | 50 % of limit value (25 μg/m3, not to be exceeded more than 35 times in any calendar year) | 50 % of limit value (20 μg/m3) | 50 % of limit value (12 μg/m3) (1) The upper assessment threshold and the lower assessment threshold for PM2,5 do not apply to the measurements to assess compliance with the PM2,5 exposure reduction target for the protection of human health.

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Source: EUR-Lex CELLAR · retrieved 2026-08-09 · Text as consolidated on 2015-09-18; changes after this date are not shown.