Article 5 Responsibilities

assessment of ambient air quality, including ensuring an adequate functioning and maintenance of the monitoring network;

approval of measurement systems (methods, equipment, networks and laboratories);

ensuring the accuracy of measurements and the transfer and sharing of measurement data;

promoting the accuracy of modelling applications;

analysis of assessment methods;

coordination on their territory if Union-wide quality assurance programmes are being organised by the Commission;

cooperation with the other Member States and the Commission, including on transboundary air pollution;

establishment of air quality plans and air quality roadmaps;

establishment of short-term action plans;

provision and maintenance of an air quality index and other relevant public information as specified in Annex X.