when assessing the socio-economic environment of the project, it is possible to identify the main problem of the project, which is the problem of particulate matter in the ambient air, which is dangerous to human health and the environment. The target group of the project is the residents of Kaunas city. The aim of the project is to improve ambient air quality in Kaunas city by reducing environmental pollution by particulate matter. The objective of the project is to improve the management of ambient air quality. Project activities: the development of a plan of measures for the management of ambient air quality; purchase of street cleaning equipment; implementation of the public information campaign. The implementation of air quality management measures will allow the concentration of particulate matter in Kaunas city air to be exceeded by less than 35 days per calendar year.