Łomianki vs Otwock: PM2.5 compared
Łomianki and Otwock were both measured on only one day over the last year, too few to compare them (it takes 30).
Right now
Łomianki#1,055on the 24-hour board of 2,625, at 46 US AQI (8.2 µg/m³)
Otwock#140on the 24-hour board of 2,625, at 75 US AQI (22.0 µg/m³)
Compare either city with another
Łomianki
Side by side with Legionowo (the nearest), Kasur (the world's worst on 30 days).
Otwock
Side by side with Konstancin-Jeziorna (the nearest), Kalisz (Poland's 2nd worst on 30 days), Kasur (the world's worst on 30 days).
The same rules as every SmogRank figure: reference monitors first, and a day counts with 18 measured hours. How we measure.
Updated 2026-10-14 07:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence).