What is the air quality trend in Achères?

Over the past 15 days, Achères had an average AQI of 45 based on station measurements. The worst day was 2026-05-17 with AQI 61.

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
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

335h

PM2.5 Station

335h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-29	47	23–73	12.0 µg/m³	11.5	21h	13
2026-05-28	50	31–77	13.0 µg/m³	14.0	24h	12
2026-05-27	49	26–131	12.6 µg/m³	10.5	24h	13
2026-05-26	42	26–72	10.5 µg/m³	6.5	24h	15
2026-05-25	45	31–56	11.0 µg/m³	12.5	24h	16
2026-05-24	51	28–168	15.5 µg/m³	10.2	24h	13
2026-05-23	40	27–56	9.6 µg/m³	8.4	24h	13
2026-05-22	43	25–79	10.8 µg/m³	7.5	24h	13
2026-05-21	37	22–71	9.3 µg/m³	8.3	24h	14
2026-05-20	44	17–178	14.3 µg/m³	6.0	24h	12
2026-05-19	46	18–95	12.9 µg/m³	3.6	24h	11
2026-05-18	49	14–170	15.5 µg/m³	3.8	24h	12
2026-05-17	61	13–143	18.2 µg/m³	5.1	24h	15
2026-05-16	42	16–163	12.1 µg/m³	4.7	24h	15
2026-05-15	41	23–59	10.6 µg/m³	6.7	2h	18

Back to Achères Air Quality