From September 22 to 29, no exceedances of the maximum permissible concentration of pollutants were detected at the automatic air pollution control stations in Kazan.
At the request of residents, the mobile environmental laboratory of the Ministry was organized to visit the northern zone of Kazan both during the day and at night. According to the results of the visits, no excess was recorded in the residential area. In addition, ecologists took samples using a hand-held sampling pump for analysis on a wider list of substances. The results of these analyses will be available later.