What is the air quality trend in Alfeld?

Over the past 11 days, Alfeld had an average AQI of 25 based on station measurements. The worst day was 2026-05-22 with AQI 34.

How is Alfeld air quality measured?

Air quality in Alfeld 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 Alfeld, Germany

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

17h

PM2.5 Station

17h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	32	23–42	7.8 µg/m³	2h	2
2026-05-28	28	22–33	6.6 µg/m³	2h	2
2026-05-26	8	8–8	1.8 µg/m³	1h	2
2026-05-25	24	7–42	5.9 µg/m³	2h	1
2026-05-24	20	20–20	4.8 µg/m³	1h	1
2026-05-23	34	20–47	8.2 µg/m³	3h	1
2026-05-22	34	34–34	8.2 µg/m³	1h	1
2026-05-21	19	19–19	4.6 µg/m³	1h	1
2026-05-20	22	14–29	5.2 µg/m³	2h	2
2026-05-19	30	30–30	7.1 µg/m³	1h	2
2026-05-18	24	24–24	5.8 µg/m³	1h	1

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