What is the air quality trend in Zhangjiakou?

Over the past 21 days, Zhangjiakou had an average AQI of 72 based on station measurements. The worst day was 2026-05-14 with AQI 104.

How is Zhangjiakou air quality measured?

Air quality in Zhangjiakou 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 Zhangjiakou, China

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

467h

PM2.5 Station

467h · 2 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	68	43–99	20.1 µg/m³	14h	2
2026-05-28	59	30–85	16.2 µg/m³	24h	2
2026-05-27	64	52–88	18.2 µg/m³	24h	2
2026-05-26	59	30–84	16.3 µg/m³	24h	2
2026-05-25	54	27–77	14.6 µg/m³	23h	2
2026-05-24	63	23–107	18.3 µg/m³	24h	2
2026-05-23	76	48–171	25.2 µg/m³	24h	3
2026-05-22	66	25–127	20.0 µg/m³	24h	2
2026-05-21	75	48–114	23.6 µg/m³	24h	2
2026-05-20	58	34–87	16.2 µg/m³	23h	2
2026-05-19	60	37–97	16.7 µg/m³	24h	3
2026-05-18	59	30–80	16.4 µg/m³	24h	2
2026-05-17	61	32–102	17.6 µg/m³	22h	2
2026-05-16	72	33–97	22.4 µg/m³	21h	2
2026-05-15	75	13–136	23.8 µg/m³	24h	2
2026-05-14	104	38–417	45.5 µg/m³	24h	2
2026-05-13	93	32–154	31.8 µg/m³	24h	3
2026-05-12	101	46–160	36.2 µg/m³	24h	2
2026-05-11	91	47–139	30.8 µg/m³	21h	2
2026-05-10	88	35–172	30.9 µg/m³	24h	2
2026-05-09	80	62–96	25.7 µg/m³	7h	3

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