What is the air quality trend in Phayao?

Over the past 8 days, Phayao had an average AQI of 183 based on station measurements. The worst day was with AQI .

How is Phayao air quality measured?

Air quality in Phayao 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 Phayao, Thailand

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

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

171

Current AQI
Unhealthy

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

110h · 30 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-10	161	135–198	79.8 µg/m³	86.7	20h	31
2026-04-09	172	158–199	96.8 µg/m³	97.4	18h	27
2026-04-08	167	162–173	86.9 µg/m³	90.4	10h	29
2026-04-07	179	163–212	108.3 µg/m³	117.0	24h	31
2026-04-06	184	177–231	117.8 µg/m³	123.0	19h	25
2026-04-05	178	178–178	107.0 µg/m³	119.0	1h	1
2026-04-04	225	210–246	174.7 µg/m³	186.1	15h	29
2026-04-03	201	198–206	150.6 µg/m³	169.8	3h	28

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