What is the air quality trend in Bar-le-Duc?

Over the past 21 days, Bar-le-Duc had an average AQI of 44 based on station measurements. The worst day was 2026-05-09 with AQI 132.

How is Bar-le-Duc air quality measured?

Air quality in Bar-le-Duc 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 Bar-le-Duc, France

Name: Bar-le-Duc Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Bar-le-Duc, France.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

421h

PM2.5 Station

421h · 3 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	35	15–57	8.5 µg/m³	12h	2
2026-05-28	43	11–71	10.8 µg/m³	19h	2
2026-05-27	42	15–73	11.3 µg/m³	18h	2
2026-05-26	49	14–124	13.2 µg/m³	15h	2
2026-05-25	39	14–78	9.9 µg/m³	23h	2
2026-05-24	34	13–102	8.8 µg/m³	21h	2
2026-05-23	33	5–54	8.0 µg/m³	22h	2
2026-05-22	46	20–235	17.7 µg/m³	19h	2
2026-05-21	31	8–58	7.6 µg/m³	20h	2
2026-05-20	39	8–113	10.2 µg/m³	23h	2
2026-05-19	38	16–114	10.5 µg/m³	22h	2
2026-05-18	30	5–85	7.8 µg/m³	22h	2
2026-05-17	86	17–500	47.1 µg/m³	21h	2
2026-05-16	36	16–75	9.0 µg/m³	20h	2
2026-05-15	33	6–84	8.6 µg/m³	24h	2
2026-05-14	38	19–85	9.6 µg/m³	21h	3
2026-05-13	34	15–57	8.4 µg/m³	23h	2
2026-05-12	36	13–175	11.5 µg/m³	23h	3
2026-05-11	33	10–80	8.2 µg/m³	24h	2
2026-05-10	40	13–68	10.2 µg/m³	24h	2
2026-05-09	132	29–494	106.8 µg/m³	5h	3

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