SmogRank / World / The Netherlands / Utrecht / February 2025

Most polluted cities in Utrecht, The Netherlands, February 2025

3 cities in Utrecht, The Netherlands ranked by their average PM2.5 over the 28 days. Worst: Breukelen at 21.9 µg/m³, #420 of 2,574 cities in the world. Cleanest: Utrecht at 18.3. 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.

← Breukelen 14% 10%0
Every city in Utrecht, The Netherlands ranked for February 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. 1Breukelen
    14%
  2. 2Utrecht
    11%
  3. 3Lopik
    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, February 2025 · All cities in The Netherlands, February 2025 · Utrecht now

Use this board

SmogRank, most polluted cities in Utrecht, The Netherlands, PM2.5, February 2025, smogrank.com/nl/region/utrecht/history/2025-02 (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.