What is the air quality trend in Couëron?

Over the past 14 days, Couëron had an average AQI of 29 based on station measurements. The worst day was with AQI .

How is Couëron air quality measured?

Air quality in Couëron 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 Couëron, France

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

Historical PM2.5 and AQI trend from monitoring stations near Couëron, France.

Current AQI
Good

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

232h · 1 station

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-10	29	17–44	6.9 µg/m³	20.2	20h	1
2026-04-09	40	13–69	10.3 µg/m³	25.8	15h	1
2026-04-08	41	35–52	9.8 µg/m³	24.4	8h	1
2026-04-07	32	12–56	7.9 µg/m³	29.5	22h	1
2026-04-06	18	12–28	4.2 µg/m³	8.2	17h	1
2026-04-04	38	16–53	9.2 µg/m³	13.8	14h	1
2026-04-03	35	14–52	8.4 µg/m³	13.2	23h	1
2026-04-02	18	10–36	4.3 µg/m³	8.1	19h	1
2026-04-01	19	10–29	4.6 µg/m³	7.9	20h	1
2026-03-31	39	18–52	9.3 µg/m³	15.0	20h	1
2026-03-30	41	21–52	9.9 µg/m³	17.0	9h	1
2026-03-29	23	17–28	5.5 µg/m³	10.1	23h	1
2026-03-28	21	10–36	5.0 µg/m³	8.9	20h	1
2026-03-27	20	18–22	4.8 µg/m³	7.9	2h	1

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