SmogRank / World / Europe / Russia / Ryazan Oblast
Most polluted cities in Ryazan Oblast, Russia
No city in Ryazan Oblast, Russia has enough readings to rank for the last 7 days.
A city joins this ranking with enough days of readings over the last 7 days; none here has that right now, so there is nothing to map or chart.
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
Estimated: cities without a monitor
Ryazan Oblast cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.
| City | 7-day estimate |
|---|---|
| Ryazan’ | ≈ 5 µg/m³ |
| Kasimov | ≈ 4 µg/m³ |
| Sasovo | ≈ 4 µg/m³ |
| Skopin | ≈ 5 µg/m³ |
| Ryazhsk | ≈ 5 µg/m³ |
| Novomichurinsk | ≈ 5 µg/m³ |
| Rybnoye | ≈ 5 µg/m³ |
| Shilovo | ≈ 4 µg/m³ |
Updated 2026-10-08 21:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); Love My Air (City and County of Denver), no reuse terms published (why we use them).