anx_V__table__3

Air pollutant | Minimum data coverage Fixed measurements (4) | Indicative measurements (5) Annual means | 1-hour, 8-hour or 24-hour means | Annual means | 1-hour, 8-hour or 24-hour means SO2, NO2, NOx, CO | 85 % | 85 % | 13 % | 50 % O3 and related NO and NO2 | 85 % | 85 % | 13 % | 50 % PM10, PM2,5 | 85 % | 85 % | 13 % | 50 % Benzene | 85 % | — | 13 % | — Benzo(a)pyrene, polycyclic aromatic hydrocarbons (PAH), total gaseous mercury, particulate and gaseous divalent mercury | 30 % | — | 13 % | — As, Cd, Ni, Pb | 45 % | — | 13 % | — BC, ammonia, UFP, size distribution of UFP | 80 % | — | 13 % | — Nitric acid, levoglucosan, organic carbon (OC), elemental carbon (EC), chemical composition of PM2,5, PM oxidative potential | 45 % | — | 13 % | — Total Deposition | — | — | 30 % | —

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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.