What is the air quality trend in Beijing?

Over the past 7 days, Beijing had an average AQI of 77 based on station measurements. The worst day was 2026-10-15 with AQI 116.

How is Beijing air quality measured?

Air quality in Beijing 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 Beijing, China

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

Historical PM2.5 and AQI trend from monitoring stations near Beijing, China.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 31 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-20	65	20–122	20.0 µg/m³	24h	28
2026-10-19	82	55–112	26.7 µg/m³	24h	25
2026-10-18	46	23–65	11.5 µg/m³	24h	34
2026-10-17	49	25–76	12.9 µg/m³	24h	31
2026-10-16	82	54–140	26.5 µg/m³	24h	26
2026-10-15	116	65–152	41.3 µg/m³	24h	29
2026-10-14	102	69–126	35.8 µg/m³	21h	23

Back to Beijing Air Quality