# The Air Quality Standards (Wales) Regulations 2007, Paragraph 11


Sampling points should also, where possible, be representative of similar locations not in their immediate vicinity. Where appropriate, they should be co-located with sampling points for PM10.

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Source: https://www.legislation.gov.uk/wsi/2007/717/schedule/5/paragraph/11 (the official version)
Page: https://openlegislation.uk/air-quality-standards-wales-regulations-2007/schedule-5/paragraph-11
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.