What is the air quality trend in Chengyang?

Over the past 14 days, Chengyang had an average AQI of 63 based on station measurements. The worst day was 2026-07-19 with AQI 77.

How is Chengyang air quality measured?

Air quality in Chengyang 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 Chengyang, China

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

331h

PM2.5 Station

331h · 7 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	67	48–85	19.5 µg/m³	23h	6
2026-07-20	66	50–77	19.2 µg/m³	23h	5
2026-07-19	77	46–183	26.1 µg/m³	24h	6
2026-07-18	64	52–83	18.2 µg/m³	24h	6
2026-07-17	62	45–126	17.4 µg/m³	23h	5
2026-07-16	68	49–94	20.4 µg/m³	24h	6
2026-07-15	63	41–80	18.0 µg/m³	24h	4
2026-07-14	53	13–74	14.3 µg/m³	23h	5
2026-07-13	57	38–89	15.5 µg/m³	24h	5
2026-07-12	60	39–87	16.7 µg/m³	24h	5
2026-07-11	62	26–90	17.5 µg/m³	24h	5
2026-07-10	61	31–84	17.1 µg/m³	24h	5
2026-07-09	64	39–102	18.5 µg/m³	23h	5
2026-07-08	64	32–104	18.5 µg/m³	24h	4

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