What is the air quality trend in Changcheng?

Over the past 15 days, Changcheng had an average AQI of 91 based on station measurements. The worst day was 2026-10-12 with AQI 145.

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
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

285h

PM2.5 Station

285h · 3 stations

Temperature GFS model

55pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	24	15–36	5.6 µg/m³	4h	2
2026-10-20	68	15–126	21.7 µg/m³	23h	2
2026-10-19	76	34–152	24.0 µg/m³	24h	2
2026-10-18	53	24–129	15.0 µg/m³	21h	2
2026-10-17	48	26–75	12.2 µg/m³	21h	2
2026-10-16	83	34–163	28.1 µg/m³	16h	2
2026-10-15	117	65–163	43.6 µg/m³	21h	2
2026-10-14	87	28–153	29.6 µg/m³	21h	2
2026-10-13	62	12–124	19.1 µg/m³	23h	2
2026-10-12	145	76–189	66.2 µg/m³	18h	2
2026-10-11	138	52–191	59.7 µg/m³	22h	2
2026-10-10	137	58–172	57.8 µg/m³	23h	2
2026-10-09	115	50–173	43.3 µg/m³	22h	2
2026-10-08	115	50–165	43.5 µg/m³	14h	1
2026-10-07	99	46–151	34.1 µg/m³	12h	1

Back to Changcheng Air Quality