What is the air quality trend in Troyes?

Over the past 15 days, Troyes had an average AQI of 41 based on station measurements. The worst day was 2026-07-12 with AQI 66.

How is Troyes air quality measured?

Air quality in Troyes 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 Troyes, France

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

211h

PM2.5 Station

211h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	20	1–32	4.9 µg/m³	4h	1
2026-07-21	44	13–77	12.0 µg/m³	17h	2
2026-07-20	39	10–75	10.1 µg/m³	13h	2
2026-07-19	36	7–64	8.9 µg/m³	16h	2
2026-07-18	38	7–68	9.8 µg/m³	17h	1
2026-07-17	41	10–58	10.1 µg/m³	18h	2
2026-07-16	44	2–65	11.2 µg/m³	13h	1
2026-07-15	33	2–61	8.2 µg/m³	13h	1
2026-07-14	59	13–168	20.5 µg/m³	17h	2
2026-07-13	40	25–62	9.8 µg/m³	16h	1
2026-07-12	66	17–187	27.5 µg/m³	15h	1
2026-07-11	52	9–206	23.3 µg/m³	10h	1
2026-07-10	43	15–148	12.2 µg/m³	15h	1
2026-07-09	34	7–87	8.8 µg/m³	16h	1
2026-07-08	30	1–87	8.3 µg/m³	11h	1

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