The Priiksky Territorial Administration of the Ministry of Ecology and Natural Resources of the Republic of Tatarstan received a complaint from residents of Aznakaevo. Locals complained of smoke and an unpleasant smell near the house No. 16 on Leninogorsky Tract Street. To assess the state of the air, inspectors and specialists of the Priisky TA together with a mobile environmental laboratory went to the site. Atmospheric air samples were taken in automatic mode using special equipment installed on the PEL. The samples were analyzed according to 8 indicators: phenol, formaldehyde, nitrogen oxide and dioxide, carbon monoxide, sulfur dioxide, ammonia and hydrogen sulfide. According to the results of the analysis of samples, no exceedances of the maximum permissible concentration of pollutants were detected.