SmogRank / World / Iceland / March 2023

Most polluted cities in Iceland, March 2023

2 cities in Iceland ranked by their average PM2.5 over the 31 days. Worst: Reykjavík at 96.4 µg/m³, #1 of 947 cities in the world. Cleanest: Hafnarfjörður at 5.7. A city needs measurements on 70% of the days to be ranked.

OpenAQ's archive, where our readings come from, has almost none for 20 of these 31 days. Cities in the United States and Europe have them from the EPA's and the European Environment Agency's own records of the same monitors; many cities elsewhere are missing from this board, not clean. Why.

  1. 1ReykjavíkCapital Region
    180
  2. 2HafnarfjörðurCapital Region
    32
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, March 2023 · Iceland now

Use this board

SmogRank, most polluted cities in Iceland, PM2.5, March 2023, smogrank.com/is/history/2023-03 (accessed 2 Oct 2026).

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.