Most polluted cities in Tula Oblast, Russia, December 2023

No city in Tula Oblast, Russia had measurements on 70% of the days, so December 2023 has no board for Tula 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