What is the air quality trend in Altdorf bei Nürnberg?

Over the past 8 days, Altdorf bei Nürnberg had an average AQI of 50 based on station measurements. The worst day was 2026-10-21 with AQI 140.

How is Altdorf bei Nürnberg air quality measured?

Air quality in Altdorf bei Nürnberg 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 Altdorf bei Nürnberg, Germany

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

Historical PM2.5 and AQI trend from monitoring stations near Altdorf bei Nürnberg, Germany.

104

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

147h

PM2.5 Station

147h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-21	140	87–196	63.0 µg/m³	69.1	15h	2
2026-10-20	48	4–209	23.6 µg/m³	27.3	24h	2
2026-10-19	99	10–194	38.1 µg/m³	42.9	24h	2
2026-10-18	49	6–152	15.7 µg/m³	20.6	20h	2
2026-10-17	14	2–56	3.5 µg/m³	5.0	17h	2
2026-10-16	23	2–103	6.5 µg/m³	8.1	23h	2
2026-10-15	16	2–31	3.9 µg/m³	3.5	20h	1
2026-10-14	12	2–27	2.8 µg/m³	1.9	4h	2

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