The Environmental Targets (Fine Particulate Matter) (England) Regulations 2023
These Regulations, which apply to England, set—a target in respect of the annual mean concentration of PM2.5 (fine particulate matter) in ambient air under section 2 of the Environment Act 2021 (c.30) (“the annual mean concentration target”), anda long-term target to reduce population exposure to PM2.5 (fine particulate matter), within the priority area of air quality under section 1 of that Act (“the population exposure reduction target”).