The main objective of the Decree of the Ministry of Environment, which is composed of five articles and 14 Annexes, is to establish target values for the concentration of selected pollutants in ambient air in accordance with European Union legislation. The present Decree lays down in particular: (a) limit values, target values and long-term objectives for ozone, critical levels of air pollution for selected pollutants and deadlines to achieve them, ways of monitoring and assessing these criteria; (b) details on information and data on air quality which must be available to the general public; (c) methods and technical requirements for air quality assessment; (d) upper and lower limits to assess the level of air pollution for selected pollutants, requirements for the location of sampling points. Limit values of pollutants for human health protection are specified in Annex 1.