From 19:00 on February 26 to 10:00 on February 27, a "black sky" regime was declared in the Samara Oblast. This alert affects industrial cities including Novokuybyshevsk, Syzran, Otradny, Chapaevsk, and Bezenchuk, anticipating meteorological conditions of the first degree. These conditions are unfavorable for the dispersion of pollutants, potentially impacting air quality.
"Black sky" refers to a combination of weather factors preventing harmful substances from dispersing in the atmosphere, primarily due to lack of wind and frost. Businesses are advised to reduce emissions, and residents are cautioned against prolonged outdoor exposure and advised to close windows.