Duty in relation to target valuesU.K.
18.—(1) The Secretary of State must ensure that all necessary measures not entailing disproportionate costs are taken to ensure that concentrations of PM2.5, ozone, arsenic, cadmium, nickel and benzo(a)pyrene do not exceed the target values in Schedule 3.
(2) The Secretary of State must draw up a list of all zones where the target values for arsenic, cadmium, nickel or benzo(a)pyrene are met and in relation to those zones, must maintain the levels of those pollutants below those target values and must endeavour to achieve the best ambient air quality compatible with sustainable development.
(3) The Secretary of State must draw up a list of all zones where the target value for arsenic, cadmium, nickel or benzo(a)pyrene is exceeded, and in relation to those zones, must identify the areas where those values are exceeded and the relevant sources of pollutants.
(4) In relation to the zones to which paragraph (3) applies, the measures in paragraph (1) must be directed at the predominant sources of emission which have been identified, and where applicable will entail the application of best available techniques in accordance with [F1the Environmental Permitting (England and Wales) Regulations 2016].
Textual Amendments
F1Words in reg. 18(4) substituted (31.12.2020) by The Air Quality (Amendment of Domestic Regulations) (EU Exit) Regulations 2019 (S.I. 2019/74), regs. 2(b), 4(4); 2020 c. 1, Sch. 5 para. 1(1)