SmogRank / World / Europe / Poland / Pomerania
Most polluted cities in Pomerania, Poland
2 measured cities, last 30 days; 0 above the WHO 24-hour guideline. Worst: Gdańsk at 10.3 µg/m³, #601 in the world.
Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.
- 1Gdańsklast full day 29 Sept 0%
- 2Kościerzynalast full day 29 Sept 0%
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
Pomerania 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 |
|---|---|
| Słupsk | ≈ 9 µg/m³ |
| Tczew | ≈ 8 µg/m³ |
| Starogard Gdański | ≈ 8 µg/m³ |
| Wejherowo | ≈ 6 µg/m³ |
| Rumia | ≈ 7 µg/m³ |
| Chojnice | ≈ 12 µg/m³ |
| Kwidzyn | ≈ 8 µg/m³ |
| Malbork | ≈ 8 µg/m³ |
| Ujeścisko-Łostowice | ≈ 7 µg/m³ |
| Przymorze Wielkie | ≈ 7 µg/m³ |
| Pruszcz Gdański | ≈ 7 µg/m³ |
| Reda | ≈ 6 µg/m³ |
| Bytów | ≈ 10 µg/m³ |
| Ustka | ≈ 10 µg/m³ |
| Osowa | ≈ 7 µg/m³ |
| Kartuzy | ≈ 6 µg/m³ |
Bad-air episodes in Pomerania
- Europe, 18 to 25 March 20268 days430 cities136 µg/m³peak, Łask
- Europe, 1 to 12 March 202612 days532 cities109 µg/m³peak, Radomsko
- Poland and Latvia, February 202628 February 2026, 1 day9 cities44 µg/m³peak, Suwałki
- Europe, January and February 202612 January to 12 February 2026, 32 days625 cities252 µg/m³peak, Travnik
- Poland, January 20265 to 6 January 2026, 2 days46 cities135 µg/m³peak, Łask
- Eastern Europe, 16 to 21 December 20256 days129 cities298 µg/m³peak, Banja Luka
Times when many cities around here had PM2.5 at twice their usual or more on the same days.
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SmogRank, most polluted cities in Pomerania, Poland, PM2.5, last 30 days to 6 Oct 2026, 22:00 UTC, smogrank.com/pl/region/pomerania?w=30d.
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.
Updated 2026-10-06 22:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.