SmogRank / World / Iceland / Capital Region / November 2025

Most unhealthy days in Capital Region, Iceland, November 2025

3 cities in Capital Region, Iceland ranked by their share of unhealthy days over the 30 days. The most unhealthy days: Hafnarfjörður, Iceland, 0 of 30 measured days. 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.

← Hafnarfjörður 0% 0.75%0
Every city in Capital Region, Iceland ranked for November 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. 1Hafnarfjörður
    0 of 30
  2. 2Reykjavík
    0 of 30
  3. 3Garðabær
    0 of 30
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, November 2025 · All cities in Iceland, November 2025 · Capital Region now

Use this board

SmogRank, most polluted cities in Capital Region, Iceland, by unhealthy days, PM2.5, November 2025, smogrank.com/is/region/capital-region/history/2025-11?by=days (accessed 7 Oct 2026).

Download top 10 by average (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.