What is the air quality trend in Yên Hòa?

Over the past 7 days, Yên Hòa had an average AQI of 55 based on station measurements. The worst day was 2026-07-21 with AQI 107.

How is Yên Hòa air quality measured?

Air quality in Yên Hòa 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 Yên Hòa, Vietnam

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

Historical PM2.5 and AQI trend from monitoring stations near Yên Hòa, Vietnam.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	107	76–155	38.1 µg/m³	41.4	23h	2
2026-07-20	81	24–150	26.7 µg/m³	29.3	24h	2
2026-07-19	39	13–75	10.2 µg/m³	11.3	24h	2
2026-07-18	18	9–44	4.3 µg/m³	5.7	24h	2
2026-07-17	29	13–49	6.9 µg/m³	8.3	24h	2
2026-07-16	48	22–74	12.8 µg/m³	14.3	24h	2
2026-07-15	68	53–118	20.1 µg/m³	22.4	24h	2

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