PART 1Environmental governance
CHAPTER 1Improving the natural environment
Environmental targets
2Environmental targets: particulate matter
1
The Secretary of State must by regulations set a target (“the PM2.5 air quality target”) in respect of the annual mean level of PM2.5 in ambient air.
2
The PM2.5 air quality target may, but need not, be a long-term target.
3
In this section “PM2.5” means particulate matter with an aerodynamic diameter not exceeding 2.5 micrometres.
4
Regulations setting the PM2.5 air quality target may make provision defining “ambient air”.
5
6
7
In this Part “the PM2.5 air quality target” means the target set under subsection (1).