What is the air quality trend in Zhangji?

Over the past 7 days, Zhangji had an average AQI of 74 based on station measurements. The worst day was 2026-10-15 with AQI 104.

How is Zhangji air quality measured?

Air quality in Zhangji 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 Zhangji, China

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

106h

PM2.5 Station

106h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-20	58	20–127	17.3 µg/m³	15h	1
2026-10-19	77	18–129	25.3 µg/m³	16h	1
2026-10-18	48	21–94	12.9 µg/m³	15h	1
2026-10-17	58	18–99	17.3 µg/m³	19h	1
2026-10-16	82	29–147	27.0 µg/m³	17h	1
2026-10-15	104	60–158	38.0 µg/m³	15h	1
2026-10-14	93	38–147	31.6 µg/m³	9h	1

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