SmogRank / World / Reunion / February 2023

Most polluted cities in Reunion, February 2023

3 cities in Reunion ranked by their average PM2.5 over the 28 days. Worst: Saint-Denis at 6.3 µg/m³, #1,045 of 1,175 cities in the world. Cleanest: Saint-Joseph at 3.4. A city needs measurements on 70% of the days to be ranked.

OpenAQ's archive, where our readings come from, has almost none for 25 of these 28 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.

← Saint-Denis 6.3 µg/m³ 20 µg/m³0
Every city in Reunion ranked for February 2023, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1Saint-DenisReunion
    35
  2. 2Saint-PaulReunion
    26
  3. 3Saint-JosephReunion
    19
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 2023 · Reunion now

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SmogRank, most polluted cities in Reunion, PM2.5, February 2023, smogrank.com/re/history/2023-02 (accessed 2 Oct 2026).

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