What is the air quality trend in Changyuan?

Over the past 7 days, Changyuan had an average AQI of 71 based on station measurements. The worst day was 2026-10-15 with AQI 93.

How is Changyuan air quality measured?

Air quality in Changyuan 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 Changyuan, China

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

140h

PM2.5 Station

140h · 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	72	42–137	22.1 µg/m³	19h	4
2026-10-19	58	32–78	16.1 µg/m³	21h	5
2026-10-18	54	21–126	14.7 µg/m³	19h	4
2026-10-17	48	29–75	12.3 µg/m³	18h	4
2026-10-16	87	63–153	28.8 µg/m³	21h	4
2026-10-15	93	68–153	31.5 µg/m³	21h	5
2026-10-14	85	46–109	28.2 µg/m³	21h	4

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