What is the air quality trend in Phrae?

Over the past 7 days, Phrae had an average AQI of 169 based on station measurements. The worst day was with AQI .

How is Phrae air quality measured?

Air quality in Phrae 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 Phrae, Thailand

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

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

142

Current AQI
Unhealthy for sensitive groups

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

107h · 18 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-10	147	110–172	63.6 µg/m³	75.3	18h	18
2026-04-09	143	74–174	65.1 µg/m³	73.7	18h	16
2026-04-08	186	166–255	117.5 µg/m³	132.9	10h	17
2026-04-07	175	166–187	101.9 µg/m³	120.6	24h	18
2026-04-06	166	158–183	84.3 µg/m³	93.8	17h	19
2026-04-04	182	177–190	115.0 µg/m³	125.5	15h	18
2026-04-03	188	184–189	126.6 µg/m³	135.9	5h	19

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