# The Air Quality Limit Values (Scotland) Regulations 2001, Paragraph


Where fewer than five years’ data are available, measurement campaigns of short duration during the period of the year and at locations likely to be typical of the highest pollution levels may be combined with results obtained from information from emission inventories and modelling to determine exceedances of the upper and lower assessment thresholds.

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Source: https://www.legislation.gov.uk/ssi/2001/224/schedule/2/part/II/paragraph/wrapper4n1 (the official version)
Page: https://openlegislation.uk/air-quality-limit-values-scotland-regulations-2001/schedule-2/part-II/paragraph-wrapper4n1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.