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Air Quality History for Chiang Rai, Thailand

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

166
Current AQI
Unhealthy
48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

317h · 40 stations

Daily Summary

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-04-10 167 156–184 86.1 µg/m³ 90.1 21h 41
2026-04-09 168 155–173 88.8 µg/m³ 91.8 17h 38
2026-04-08 155 147–158 64.3 µg/m³ 64.0 11h 36
2026-04-07 165 156–180 83.3 µg/m³ 87.9 24h 43
2026-04-06 174 164–194 100.5 µg/m³ 104.2 18h 37
2026-04-04 248 230–270 198.2 µg/m³ 214.8 15h 37
2026-04-03 214 193–244 163.4 µg/m³ 170.8 24h 39
2026-04-02 230 197–262 180.0 µg/m³ 181.8 22h 39
2026-04-01 235 194–257 184.8 µg/m³ 177.9 22h 36
2026-03-31 192 170–295 129.9 µg/m³ 114.5 23h 28
2026-03-30 200 175–215 145.2 µg/m³ 144.6 13h 27
2026-03-29 186 163–219 120.4 µg/m³ 134.6 23h 37
2026-03-28 180 159–208 112.0 µg/m³ 122.6 23h 36
2026-03-27 188 166–233 121.0 µg/m³ 132.1 24h 33
2026-03-26 180 157–196 111.1 µg/m³ 119.0 24h 37
2026-03-25 146 102–174 61.3 µg/m³ 67.1 12h 21
2026-03-24 157 157–157 68.0 µg/m³ 41.0 1h 1
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