Duty to ensure that ambient air quality is improved
3.—(1) Northern Ireland departments shall take the measures necessary to ensure that throughout Northern Ireland in each zone concentrations of relevant pollutants in ambient air, as assessed in accordance with regulations 4 to 7, do not exceed the limit values set out in Schedule 1 from the dates specified in that Schedule.
(2) The measures taken shall—
(a)take into account an integrated approach to the protection of air, water and soil;
(b)not contravene Community legislation on the protection of safety and health of workers at work; and
(c)have no significant negative effects on the environment in the other Member States.