What is the air quality trend in Changli?

Over the past 8 days, Changli had an average AQI of 73 based on station measurements. The worst day was 2026-10-15 with AQI 121.

How is Changli air quality measured?

Air quality in Changli 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 Changli, China

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

158h

PM2.5 Station

158h · 3 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	32	27–37	7.6 µg/m³	4h	4
2026-10-20	74	20–119	23.4 µg/m³	24h	3
2026-10-19	70	34–100	21.5 µg/m³	21h	3
2026-10-18	53	18–159	15.1 µg/m³	23h	3
2026-10-17	53	34–79	14.0 µg/m³	23h	3
2026-10-16	82	41–162	27.1 µg/m³	22h	2
2026-10-15	121	71–162	44.6 µg/m³	24h	2
2026-10-14	100	48–137	34.7 µg/m³	17h	2

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