What is the air quality trend in Kotka?

Over the past 7 days, Kotka had an average AQI of 10 based on station measurements. The worst day was with AQI .

How is Kotka air quality measured?

Air quality in Kotka 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 Kotka, Finland

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

Historical PM2.5 and AQI trend from monitoring stations near Kotka, Finland.

Current AQI
Good

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

101h · 1 station

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-10	6	3–10	1.5 µg/m³	5.0	20h	1
2026-04-09	7	5–9	1.6 µg/m³	4.9	14h	1
2026-04-08	10	8–11	2.4 µg/m³	4.9	9h	1
2026-04-07	10	1–28	2.4 µg/m³	4.2	24h	1
2026-04-06	11	3–31	2.7 µg/m³	5.4	17h	1
2026-04-04	10	4–27	2.4 µg/m³	3.8	14h	1
2026-04-03	19	18–22	4.6 µg/m³	5.9	3h	1

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