What is the air quality trend in Nan?

Over the past 8 days, Nan had an average AQI of 350 based on station measurements. The worst day was with AQI .

How is Nan air quality measured?

Air quality in Nan 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 Nan, Thailand

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

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

234

Current AQI
Very unhealthy

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

107h · 21 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-11	252	235–268	202.3 µg/m³	217.7	3h	20
2026-04-10	184	152–228	115.6 µg/m³	123.1	24h	20
2026-04-09	197	80–500	238609403.5 µg/m³	238609410.3	18h	17
2026-04-08	500	500–500	188792482.1 µg/m³	188792489.7	9h	23
2026-04-07	500	500–500	194004928.0 µg/m³	194004937.8	24h	22
2026-04-06	500	500–500	198102814.3 µg/m³	198102822.0	17h	22
2026-04-05	174	174–174	100.0 µg/m³	111.0	1h	1
2026-04-04	500	500–500	191066064.8 µg/m³	191066076.4	11h	23

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