# The Air Quality Limit Values Regulations (Northern Ireland) 2002, Schedule 4: Criteria for Determining Minimum Numbers of Sampling Points for Fixed Measurement of Concentrations of Relevant Pollutants in Ambient Air.

Extent: N.I.



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Source: https://www.legislation.gov.uk/nisr/2002/94/schedule/4 (the official version)
Page: https://openlegislation.uk/air-quality-limit-values-regulations-northern-ireland-2002/schedule-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.