What is the air quality trend in Achères?

Over the past 4 days, Achères had an average AQI of 49 based on station measurements. The worst day was 2026-05-10 with AQI 87.

How is Achères air quality measured?

Air quality in Achères 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 Achères, France

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

46h

PM2.5 Station

46h · 2 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-22	37	37–37	8.9 µg/m³	—	1h	2
2026-05-11	43	5–112	12.5 µg/m³	13.1	19h	1
2026-05-10	87	52–131	28.5 µg/m³	31.8	24h	1
2026-05-09	32	31–33	7.7 µg/m³	7.7	2h	1

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