What is the air quality trend in Changzhou?

Over the past 15 days, Changzhou had an average AQI of 58 based on station measurements. The worst day was 2026-05-23 with AQI 80.

How is Changzhou air quality measured?

Air quality in Changzhou 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 Changzhou, China

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

325h

PM2.5 Station

325h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	64	27–99	19.1 µg/m³	14h	5
2026-05-28	67	56–96	19.8 µg/m³	23h	7
2026-05-27	61	42–105	17.0 µg/m³	24h	5
2026-05-26	57	40–78	15.2 µg/m³	24h	6
2026-05-25	54	27–74	14.2 µg/m³	24h	6
2026-05-24	51	34–74	12.9 µg/m³	24h	6
2026-05-23	80	48–158	25.9 µg/m³	23h	6
2026-05-22	69	35–124	20.7 µg/m³	24h	5
2026-05-21	57	25–89	15.7 µg/m³	24h	5
2026-05-20	52	15–77	14.3 µg/m³	24h	6
2026-05-19	57	30–93	16.0 µg/m³	22h	5
2026-05-18	54	27–112	14.5 µg/m³	24h	6
2026-05-17	54	20–83	14.4 µg/m³	22h	6
2026-05-16	58	33–153	16.6 µg/m³	21h	6
2026-05-15	36	28–55	8.9 µg/m³	8h	6

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