What is the air quality trend in Pathum Wan?

Over the past 7 days, Pathum Wan had an average AQI of 21 based on station measurements. The worst day was 2026-05-28 with AQI 31.

How is Pathum Wan air quality measured?

Air quality in Pathum Wan 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 Pathum Wan, Thailand

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 29 stations

Temperature GFS model

27pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-28	31	11–62	7.5 µg/m³	1.5	24h	26
2026-05-27	13	5–34	3.2 µg/m³	1.2	24h	20
2026-05-26	22	9–82	5.7 µg/m³	1.4	24h	24
2026-05-25	22	6–58	5.4 µg/m³	2.5	24h	22
2026-05-24	17	6–176	6.6 µg/m³	5.6	24h	15
2026-05-23	25	7–59	6.3 µg/m³	2.8	24h	17
2026-05-22	22	5–87	5.7 µg/m³	1.3	23h	20

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