SmogRank / World / Russia / Leningradskaya Oblast' / February 2026
Most polluted cities in Leningradskaya Oblast', Russia, February 2026
No city in Leningradskaya Oblast', Russia had measurements on 70% of the days, so February 2026 has no board for Leningradskaya Oblast', Russia.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
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