Case C-636/18: Judgment of the Court (Seventh Chamber) of 24 October 2019 — European Commission v French Republic (Failure of a Member State to fulfil obligations — Environment — Directive 2008/50/EC — Ambient air quality — Article 13(1) and Annex XI - Systematic and persistent exceedance of the limit values for nitrogen dioxide (NO2) in certain French zones and agglomerations — Article 23(1) — Annex XV — ‘The shortest possible’ exceedance period — Appropriate measures)