What is the air quality trend in Si Maha Phot?

Over the past 8 days, Si Maha Phot had an average AQI of 66 based on station measurements. The worst day was 2026-07-19 with AQI 85.

How is Si Maha Phot air quality measured?

Air quality in Si Maha Phot 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 Si Maha Phot, Thailand

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

Historical PM2.5 and AQI trend from monitoring stations near Si Maha Phot, Thailand.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

52h

PM2.5 Station

52h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	66	45–76	19.9 µg/m³	4h	1
2026-07-20	68	68–68	20.2 µg/m³	1h	1
2026-07-19	85	72–108	27.8 µg/m³	3h	1
2026-07-18	75	59–84	23.4 µg/m³	5h	1
2026-07-17	67	55–81	19.7 µg/m³	6h	1
2026-07-16	58	53–67	15.3 µg/m³	9h	1
2026-07-15	60	47–77	16.4 µg/m³	23h	1
2026-07-14	53	53–53	13.1 µg/m³	1h	1

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