What is the air quality trend in Udon Thani?

Over the past 16 days, Udon Thani had an average AQI of 142 based on station measurements. The worst day was with AQI .

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.

142

Current AQI
Unhealthy for sensitive groups

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

295h · 3 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-10	152	129–167	62.5 µg/m³	68.2	21h	3
2026-04-09	153	127–163	63.0 µg/m³	61.4	15h	4
2026-04-08	157	131–172	73.9 µg/m³	75.7	9h	3
2026-04-07	161	151–172	75.0 µg/m³	73.8	24h	3
2026-04-06	151	134–158	58.9 µg/m³	68.6	17h	2
2026-04-04	153	139–164	62.8 µg/m³	71.9	15h	2
2026-04-03	148	123–163	58.7 µg/m³	60.1	24h	3
2026-04-02	139	95–169	54.6 µg/m³	47.4	23h	3
2026-04-01	155	119–176	67.2 µg/m³	53.5	23h	3
2026-03-31	132	93–153	48.6 µg/m³	47.3	17h	3
2026-03-30	121	80–157	45.2 µg/m³	48.2	10h	3
2026-03-29	135	108–158	49.7 µg/m³	58.8	23h	3
2026-03-28	127	99–152	46.1 µg/m³	55.6	22h	2
2026-03-27	134	112–156	49.3 µg/m³	59.5	21h	2
2026-03-26	126	98–152	45.7 µg/m³	51.4	24h	2
2026-03-25	131	112–139	47.6 µg/m³	50.1	7h	3

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