What is the air quality trend in Katrineholm?

Over the past 15 days, Katrineholm had an average AQI of 35 based on station measurements. The worst day was 2026-10-07 with AQI 54.

How is Katrineholm air quality measured?

Air quality in Katrineholm 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 Katrineholm, Sweden

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

Historical PM2.5 and AQI trend from monitoring stations near Katrineholm, Sweden.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

252h

PM2.5 Station

252h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	43	10–132	12.5 µg/m³	9h	1
2026-10-20	40	16–78	10.4 µg/m³	14h	2
2026-10-19	39	4–78	10.0 µg/m³	19h	1
2026-10-18	38	7–142	10.4 µg/m³	20h	1
2026-10-17	28	7–82	7.2 µg/m³	19h	1
2026-10-16	39	7–145	11.1 µg/m³	18h	1
2026-10-15	28	13–77	7.1 µg/m³	18h	1
2026-10-14	32	3–60	7.8 µg/m³	20h	1
2026-10-13	36	16–74	9.3 µg/m³	17h	2
2026-10-12	38	4–292	18.6 µg/m³	18h	1
2026-10-11	22	12–55	5.3 µg/m³	16h	2
2026-10-10	28	2–80	7.4 µg/m³	20h	1
2026-10-09	27	7–62	6.8 µg/m³	18h	1
2026-10-08	38	9–85	10.2 µg/m³	19h	1
2026-10-07	54	14–98	15.5 µg/m³	7h	1

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