What is the air quality trend in Udon Thani?

Over the past 6 days, Udon Thani had an average AQI of 48 based on station measurements. The worst day was 2026-05-22 with AQI 59.

How is Udon Thani air quality measured?

Air quality in Udon Thani 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 Udon Thani, Thailand

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

Historical PM2.5 and AQI trend from monitoring stations near Udon Thani, Thailand.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

31h

PM2.5 Station

31h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-27	48	23–63	12.4 µg/m³	6h	1
2026-05-26	44	43–46	10.5 µg/m³	4h	1
2026-05-25	51	21–77	13.8 µg/m³	6h	1
2026-05-24	51	39–57	12.9 µg/m³	3h	1
2026-05-23	36	15–53	8.6 µg/m³	5h	1
2026-05-22	59	40–104	16.3 µg/m³	7h	1

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