Air pollution in the town of Brezno and its surroundings poses a significant threat to human health and the quality of life of its inhabitants. Being able to comprehensively estimate the overall pollution and air quality in town is very important for decision-making and implementation of preventive measures to reduce greenhouse gas emissions. Therefore, 560 sensors (basic sensor 500 pieces, optimal sensor 50 pieces, full sensor 10 pieces) will be installed in the town at a distance of no more than 100 metres from each other, which will generate an extremely accurate map of the status of measurable indicators. The data obtained in this way will enable objective and extremely detailed processing of the list of risky localities, will inform about the relative state of the air within the cadastre, can be used to predict environmental degradation, allow more accurate definition of transport plan within town, or generate warnings of sudden deterioration. One of the key areas that the town can influence with this solution is the production of greenhouse gases - especially CO2.