anx_V__table__2

Air pollutant | Maximum uncertainty of fixed measurements | Maximum uncertainty of indicative measurements (2) | Maximum ratio of uncertainty of modelling applications and objective estimation over uncertainty of fixed measurements Absolute value | Relative value | Absolute value | Relative value | Maximum ratio PM2,5 (24-hour) | 6,3 μg/m3 | 25 % | 8,8 μg/m3 | 35 % | 2,5 PM10 (24-hour) | 11,3 μg/m3 | 25 % | 22,5 μg/m3 | 50 % | 2,2 NO2 (24-hour) | 7,5 μg/m3 | 15 % | 12,5 μg/m3 | 25 % | 3,2 NO2 (hourly) | 30 μg/m3 | 15 % | 50 μg/m3 | 25 % | 3,2 SO2 (24-hour) | 7,5 μg/m3 | 15 % | 12,5 μg/m3 | 25 % | 3,2 SO2 (hourly) | 52,5 μg/m3 | 15 % | 87,5 μg/m3 | 25 % | 3,2 CO (24-hour) | 0,6 mg/m3 | 15 % | 1,0 mg/m3 | 25 % | 3,2 CO (8-hour) | 1,0 mg/m3 | 10 % | 2,0 mg/m3 | 20 % | 4,9 Ozone (8-hour mean) | 18 μg/m3 | 15 % | 30 μg/m3 | 25 % | 2,2

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Source: EUR-Lex (Cellar) · retrieved 2026-10-16 · Text as adopted (Official Journal); later amendments are not incorporated in this text.