What is the air quality trend in Weiji?

Over the past 7 days, Weiji had an average AQI of 60 based on station measurements. The worst day was 2026-07-21 with AQI 68.

How is Weiji air quality measured?

Air quality in Weiji 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 Weiji, China

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

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

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

151h

PM2.5 Station

151h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	68	34–124	20.7 µg/m³	19h	2
2026-07-20	61	25–83	17.4 µg/m³	23h	2
2026-07-19	62	17–156	18.2 µg/m³	21h	2
2026-07-18	67	30–117	20.2 µg/m³	21h	2
2026-07-17	57	16–97	16.1 µg/m³	24h	2
2026-07-16	49	14–84	13.4 µg/m³	24h	2
2026-07-15	60	20–102	17.4 µg/m³	19h	2

Back to Weiji Air Quality