4.

From 19 July 2001 Member States shall employ measurement stations and other methods of air-quality assessment that comply with this Directive to assess concentrations of sulphur dioxide, nitrogen dioxide and lead in ambient air to obtain data for the purpose of demonstrating compliance with the limit values laid down in Directives 80/779/EEC, 82/884/EEC and 85/203/EEC until such time as the limit values laid down in those Directives cease to apply.

1 national measure recorded under this provision, in 1 form — sign in to view the analysis.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-12 · Text as adopted (Official Journal); later amendments are not incorporated in this text.