Particulate matters with a diametar of \(PM_{2,5}\) and \(PM_{10}\), nitrogen dioxide (\(NO_{2}\)), sulfur dioxide (\(SO_{2}\)) and ground-level ozone (\(O_{3}\)) are among the air pollutants that are often found in concentrations above the prescribed values. They cause poor air quality and have the greatest impact on human health and biological diversity. Increased concentration represents the risk of respiratory and vascular diseases. The directive seeks to regulate the limit of concentrations in order to ensure the target value of concentrations and reduce mortality in case of chronic conditions. The European Parliament is putting forward stricter air quality standards with the policy of reducing pollution, in order to ensure the zero rate of pollution from the European Green Plan. The commission of the Ministry of Economy and Sustainable Development announced the creation of a national list of indicators. The national list of indicators in the field of air monitors the implementation of plans and evaluation of air quality in the Republic of Croatia. The industry's obligation is to control the concentrations of emissions that occur during production, heat and electricity consumption, and fuel consumption. The authorized testing laboratory is responsible for monitoring the Environmental Status Report on stationary sources. The European Union's most important tool, the Greenhouse Gas Emissions Trading System, has clearly set out targets for reducing emissions from stationary sources, using carbon permits for every tonne of \(CO_{2}\) emitted by industries.