What is the air quality trend in Roskilde?

Over the past 8 days, Roskilde had an average AQI of 97 based on station measurements. The worst day was 2026-07-16 with AQI 194.

How is Roskilde air quality measured?

Air quality in Roskilde 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 Roskilde, Denmark

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

Historical PM2.5 and AQI trend from monitoring stations near Roskilde, Denmark.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 3 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	4	3–5	0.9 µg/m³	1.8	14h	3
2026-07-20	3	2–5	0.8 µg/m³	1.9	24h	3
2026-07-19	5	2–11	1.2 µg/m³	2.4	24h	3
2026-07-18	27	8–58	6.7 µg/m³	10.7	24h	4
2026-07-17	175	34–249	105.3 µg/m³	109.9	24h	3
2026-07-16	194	165–261	127.4 µg/m³	132.5	24h	3
2026-07-15	182	166–233	114.5 µg/m³	119.2	24h	3
2026-07-14	186	165–258	117.4 µg/m³	122.8	10h	3

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