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art_15__para_1

1. The alert thresholds for concentrations of sulphur dioxide, nitrogen dioxide, particulate matter (PM10 and PM2,5) and ozone in ambient air shall be those laid down in Section 4, Point A, of Annex I.

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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.