What is the air quality trend in Arnstadt?

Over the past 15 days, Arnstadt had an average AQI of 26 based on station measurements. The worst day was 2026-10-21 with AQI 54.

How is Arnstadt air quality measured?

Air quality in Arnstadt 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 Arnstadt, Germany

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

Historical PM2.5 and AQI trend from monitoring stations near Arnstadt, Germany.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

272h

PM2.5 Station

272h · 15 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-22	16	12–18	3.7 µg/m³	7.8	10h	14
2026-10-21	54	19–66	14.7 µg/m³	18.0	17h	14
2026-10-20	48	24–61	12.1 µg/m³	16.3	20h	14
2026-10-19	44	23–65	11.0 µg/m³	14.6	19h	15
2026-10-18	28	15–61	6.8 µg/m³	9.3	19h	14
2026-10-17	21	8–37	4.9 µg/m³	7.5	19h	14
2026-10-16	36	22–54	8.6 µg/m³	14.1	19h	15
2026-10-15	33	22–45	7.8 µg/m³	14.1	20h	15
2026-10-14	25	12–42	6.1 µg/m³	10.8	22h	13
2026-10-13	19	11–34	4.5 µg/m³	8.5	18h	14
2026-10-12	20	8–41	4.9 µg/m³	9.2	22h	13
2026-10-11	15	10–18	3.5 µg/m³	6.0	19h	15
2026-10-10	13	5–26	3.1 µg/m³	5.3	21h	14
2026-10-09	14	8–21	3.4 µg/m³	7.1	20h	14
2026-10-08	12	11–13	2.9 µg/m³	6.0	7h	15

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