# The Air Quality Standards Regulations (Northern Ireland) 2010, Paragraph 5: Sampling points for the protection of human health

Extent: N.I.

Where contributions from industrial sources are to be assessed, at least one sampling point shall be installed downwind of the source in the nearest residential area. Where the background concentration is not known, an additional sampling point shall be situated within the main wind direction.

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Source: https://www.legislation.gov.uk/nisr/2010/188/schedule/1/paragraph/5 (the official version)
Page: https://openlegislation.uk/air-quality-standards-regulations-northern-ireland-2010/schedule-1/paragraph-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.