What is the air quality trend in Tallinn?

Over the past 8 days, Tallinn had an average AQI of 123 based on station measurements. The worst day was 2026-05-21 with AQI 157.

How is Tallinn air quality measured?

Air quality in Tallinn 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 Tallinn, Estonia

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

Historical PM2.5 and AQI trend from monitoring stations near Tallinn, Estonia.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-28	126	24–175	51.6 µg/m³	61.6	23h	1
2026-05-27	92	24–164	34.1 µg/m³	53.6	24h	1
2026-05-26	130	25–160	49.3 µg/m³	54.4	24h	1
2026-05-25	130	25–173	52.4 µg/m³	57.6	24h	1
2026-05-24	115	22–155	42.2 µg/m³	52.3	24h	1
2026-05-23	117	21–180	53.8 µg/m³	74.5	23h	1
2026-05-22	120	23–180	50.2 µg/m³	64.8	24h	1
2026-05-21	157	157–157	66.2 µg/m³	70.7	1h	1

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