What is the air quality trend in Beijing?

Over the past 14 days, Beijing had an average AQI of 61 based on station measurements. The worst day was 2026-07-19 with AQI 74.

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

335h

PM2.5 Station

335h · 8 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	68	52–79	20.2 µg/m³	23h	13
2026-07-20	66	52–82	19.4 µg/m³	24h	14
2026-07-19	74	59–125	23.1 µg/m³	24h	16
2026-07-18	67	57–88	19.9 µg/m³	24h	14
2026-07-17	60	51–72	16.3 µg/m³	24h	14
2026-07-16	68	42–94	20.1 µg/m³	24h	14
2026-07-15	58	42–72	15.6 µg/m³	24h	11
2026-07-14	50	31–73	12.6 µg/m³	24h	13
2026-07-13	57	48–68	14.8 µg/m³	24h	15
2026-07-12	56	38–73	14.7 µg/m³	24h	13
2026-07-11	59	49–73	16.1 µg/m³	24h	15
2026-07-10	60	52–78	16.5 µg/m³	24h	15
2026-07-09	62	54–78	17.6 µg/m³	24h	15
2026-07-08	61	47–77	17.0 µg/m³	24h	14

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