What is the air quality trend in Mae Sai?

Over the past 7 days, Mae Sai had an average AQI of 157 based on station measurements. The worst day was with AQI .

How is Mae Sai air quality measured?

Air quality in Mae Sai 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 Mae Sai, Thailand

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

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

124

Current AQI
Unhealthy for sensitive groups

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

130h · 23 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-12	146	116–169	60.8 µg/m³	65.2	13h	22
2026-04-11	165	154–174	82.9 µg/m³	85.4	24h	23
2026-04-10	161	156–172	74.8 µg/m³	77.4	24h	22
2026-04-09	158	145–163	70.4 µg/m³	72.7	18h	19
2026-04-08	147	131–154	55.6 µg/m³	58.7	10h	20
2026-04-07	159	153–165	70.4 µg/m³	72.3	24h	24
2026-04-06	168	157–181	89.3 µg/m³	91.8	17h	23

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