http://www.legislation.gov.uk/eudr/1996/62/article/6/2020-12-31Council Directive 96/62/EC of 27 September 1996 on ambient air quality assessment and management (repealed)Council Directive 96/62/EC (repealed)Council Directive 96/62/EC of 27 September 1996 on ambient air quality assessment and management (repealed)2020-12-12King's Printer of Acts of Parliamenthttps://webarchive.nationalarchives.gov.uk/eu-exit/https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:01996L0062-20100611texttext/xmlen2010-06-11F1Article 6Assessment of ambient air quality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .