The project involves the decommissioning of 38 high-emission heat sources (through connection to the gas and district heating network) and the replacement of 80 heat sources in the municipality of Kluczbork for more environmentally friendly types of heating, in accordance with the preferences of residents and the requirements of the regulations and the hierarchy resulting from the possible environmental effects. The implementation of the measures in the project support for the residents will be carried out in a grant system.In addition, the project is planned to create a municipal air quality monitoring system.The main objective of the project is to improve air quality in the municipality of Kluczbork. This is a particularly important task in the context of the long-standing problems in meeting air quality standards in the municipality of Kluczbork and the potential health risk for residents exposed to carbon-intensive boilers and furnaces, especially those firing solid fuels, with an outdated design, allowing the combustion of other unacceptable substances, such as household waste. The planned actions are intended to achieve the concentration levels of substances in ambient air laid down in national and European Union legislation. This concerns, in particular, fine particulate matter with a diameter of less than 10 µm and indirectly also benzo(a)pyrene, for which, in the light of the 2017 Annual Air Quality Assessment prepared by the Provincial Environmental Protection Inspectorate in Opole and the mathematical modelling carried out for the purpose of developing the current Air Protection Programme, there are exceedances of the limit value or target value in the municipality of Kluczbork. Exposure to elevated concentrations of these substances has a significant impact on the state of health, as well as the life expectancy of residents. The parallel objective of the project’s activities is to reduce greenhouse gas emissions, to counter the escalation of global warming and to adapt to climate change.