The text discusses regulations and assessments of air pollution levels in different regions of Poland for specific substances such as Pb, As, Cd, Ni, BaP, O3. The main laws governing these assessments are the Law on Environmental Protection and the Ministry of Environment's Regulation on Assessing Pollutant Levels. The report discusses the results of both modeling and measurements for substances such as SO2, NO2 and CO. The report also highlights the major sources of air pollution, such as energy production and agriculture. Methods for assessing air quality are also described, including measurements for specific substances.