# The Environmental Targets (Fine Particulate Matter) (England) Regulations 2022, Paragraph 9


PEIbase (that is, the Population Exposure Indicator, as defined in regulation 10, for the baseline period as defined in regulation 7).

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Source: https://www.legislation.gov.uk/ukdsi/2022/9780348242959/schedule/3/paragraph/9 (the official version)
Page: https://openlegislation.uk/draft-environmental-targets-fine-particulate-matter-england-regulations-2022/schedule-3/paragraph-9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.