# The Environmental Targets (Fine Particulate Matter) (England) Regulations 2022, Regulation 4: Target


The annual mean concentration target is that by the end of 31st December 2040 the annual mean level of PM2.5 in ambient air must be equal to or less than 10 µg/m³ (“the target level”).

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Source: https://www.legislation.gov.uk/ukdsi/2022/9780348242959/regulation/4 (the official version)
Page: https://openlegislation.uk/draft-environmental-targets-fine-particulate-matter-england-regulations-2022/regulation-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.