What is the air quality trend in Saint-Denis?

Over the past 8 days, Saint-Denis had an average AQI of 47 based on station measurements. The worst day was 2026-08-03 with AQI 58.

How is Saint-Denis air quality measured?

Air quality in Saint-Denis is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Saint-Denis, Réunion

Name: Saint-Denis Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Saint-Denis, Réunion.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

161h

PM2.5 Station

161h · 15 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-08	52	48–56	13.0 µg/m³	4h	16
2026-08-07	36	21–60	8.9 µg/m³	22h	10
2026-08-06	44	20–68	11.4 µg/m³	24h	13
2026-08-05	48	32–90	12.2 µg/m³	24h	11
2026-08-04	46	26–76	11.8 µg/m³	24h	11
2026-08-03	58	25–299	23.7 µg/m³	24h	11
2026-08-02	47	19–117	11.8 µg/m³	23h	11
2026-08-01	48	20–104	12.8 µg/m³	16h	8

Back to Saint-Denis Air Quality