What is the air quality trend in Changyuan?

Over the past 15 days, Changyuan had an average AQI of 50 based on station measurements. The worst day was 2026-09-05 with AQI 73.

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.

166

Current AQI
Unhealthy Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

313h

PM2.5 Station

313h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	73	36–144	22.4 µg/m³	14h	2
2026-09-04	61	26–127	17.8 µg/m³	23h	3
2026-09-03	51	25–77	13.5 µg/m³	23h	4
2026-09-02	43	25–82	11.1 µg/m³	21h	4
2026-09-01	37	13–68	9.2 µg/m³	22h	3
2026-08-31	43	18–99	11.6 µg/m³	23h	3
2026-08-30	50	25–93	13.4 µg/m³	23h	4
2026-08-29	57	34–80	15.3 µg/m³	24h	4
2026-08-28	50	21–74	13.0 µg/m³	22h	4
2026-08-27	50	21–91	12.8 µg/m³	22h	3
2026-08-26	55	31–80	15.1 µg/m³	23h	3
2026-08-25	46	24–63	11.5 µg/m³	22h	3
2026-08-24	53	26–80	14.5 µg/m³	22h	4
2026-08-23	49	13–108	13.3 µg/m³	23h	3
2026-08-22	40	28–59	9.9 µg/m³	6h	3

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