What is the air quality trend in Phayao?

Over the past 17 days, Phayao had an average AQI of 190 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.

182

Current AQI
Unhealthy

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

314h · 30 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-10	162	135–198	81.5 µg/m³	88.3	22h	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	176–242	144.2 µg/m³	153.3	24h	29
2026-04-02	219	186–274	166.1 µg/m³	169.6	21h	28
2026-04-01	234	188–261	183.1 µg/m³	174.3	22h	25
2026-03-31	180	157–212	111.5 µg/m³	103.7	21h	18
2026-03-30	200	175–237	142.5 µg/m³	137.0	13h	18
2026-03-29	192	159–247	127.8 µg/m³	142.3	24h	26
2026-03-28	205	161–271	143.1 µg/m³	154.3	22h	27
2026-03-27	202	157–271	137.8 µg/m³	148.8	22h	27
2026-03-26	184	137–232	117.2 µg/m³	124.7	24h	28
2026-03-25	159	102–186	81.9 µg/m³	95.1	12h	14

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