What is the air quality trend in Changcheng?

Over the past 14 days, Changcheng had an average AQI of 65 based on station measurements. The worst day was 2026-05-16 with AQI 78.

How is Changcheng air quality measured?

Air quality in Changcheng 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 Changcheng, China

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

328h

PM2.5 Station

328h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	66	43–77	19.4 µg/m³	21h	3
2026-05-28	62	31–88	17.5 µg/m³	24h	4
2026-05-27	71	52–89	21.7 µg/m³	24h	4
2026-05-26	63	33–89	17.9 µg/m³	24h	4
2026-05-25	57	22–74	15.5 µg/m³	24h	4
2026-05-24	65	34–102	18.9 µg/m³	24h	4
2026-05-23	75	46–116	23.5 µg/m³	24h	4
2026-05-22	65	32–95	19.2 µg/m³	24h	4
2026-05-21	76	44–119	23.8 µg/m³	23h	3
2026-05-20	64	45–87	18.6 µg/m³	24h	4
2026-05-19	59	30–81	16.5 µg/m³	24h	4
2026-05-18	59	26–85	16.5 µg/m³	24h	4
2026-05-17	61	25–105	17.1 µg/m³	22h	4
2026-05-16	78	28–147	25.5 µg/m³	22h	4

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