SmogRank / World / Poland / Lower Silesia / 2025

Most polluted cities in Lower Silesia, Poland, 2025

4 cities in Lower Silesia, Poland ranked by their average PM2.5 over the 365 days; 4 above the WHO annual guideline (5.0 µg/m³). Worst: Kłodzko at 19.1 µg/m³, #255 of 2,624 cities in the world. Cleanest: Szczytna at 13.1. A city needs measurements on 70% of the days to be ranked.

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.

← Kłodzko 15% 10%0
Every city in Lower Silesia, Poland ranked for 2025, one column each, ranked by unhealthy days: height is the share of its measured days that were unhealthy, colour its average. Point at it to read a city; tap to open it.
  1. 1Kłodzko
    15%
  2. 2Jelenia Góra
    10%
  3. 3Wrocław
    9%
  4. 4Szczytna
    7%
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

All cities in the world, 2025 · All cities in Poland, 2025 · Lower Silesia now

Use this board

SmogRank, most polluted cities in Lower Silesia, Poland, PM2.5, 2025, smogrank.com/pl/region/lower-silesia/history/2025 (accessed 6 Oct 2026).

Download top 10 (PNG)

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.