# The Air Quality Standards (Wales) Regulations 2007, Regulation 12: Duty to assess air quality


The National Assembly must assess the concentration of each pollutant within each zone in accordance with regulations 13 to 16.

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Source: https://www.legislation.gov.uk/wsi/2007/717/regulation/12 (the official version)
Page: https://openlegislation.uk/air-quality-standards-wales-regulations-2007/regulation-12
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.