What is the air quality trend in Cầu Giấy?

Over the past 3 days, Cầu Giấy had an average AQI of 99 based on station measurements. The worst day was 2026-07-22 with AQI 124.

How is Cầu Giấy air quality measured?

Air quality in Cầu Giấy 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 Cầu Giấy, Vietnam

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

Historical PM2.5 and AQI trend from monitoring stations near Cầu Giấy, Vietnam.

117

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

48h

PM2.5 Station

48h · 2 stations

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-22	124	121–126	44.7 µg/m³	52.3	2h	2
2026-07-21	100	76–142	34.9 µg/m³	40.1	24h	2
2026-07-20	73	18–134	23.8 µg/m³	28.1	22h	2

Back to Cầu Giấy Air Quality