# The Air Quality Limit Values (Wales) Regulations 2001, Paragraph 2: General information


type of zone (city, industrial or rural area)
estimate of the polluted area (km2) and of the populations exposed to the pollution
useful climatic data
relevant data on topography
sufficient information on the type of targets requiring protection in the zone.

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Source: https://www.legislation.gov.uk/wsi/2001/2683/schedule/7/paragraph/2 (the official version)
Page: https://openlegislation.uk/air-quality-limit-values-wales-regulations-2001/schedule-7/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.