What is the air quality trend in Changtu?

Over the past 15 days, Changtu had an average AQI of 54 based on station measurements. The worst day was 2026-05-22 with AQI 70.

How is Changtu air quality measured?

Air quality in Changtu 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 Changtu, China

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

211h

PM2.5 Station

211h · 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	52	14–107	15.0 µg/m³	12h	1
2026-05-28	48	3–117	14.1 µg/m³	21h	1
2026-05-27	60	27–109	17.5 µg/m³	17h	1
2026-05-26	52	8–97	14.7 µg/m³	13h	2
2026-05-25	40	3–74	10.7 µg/m³	19h	2
2026-05-24	49	3–127	14.5 µg/m³	16h	2
2026-05-23	61	21–96	18.4 µg/m³	15h	1
2026-05-22	70	15–127	22.1 µg/m³	10h	1
2026-05-21	54	8–99	15.6 µg/m³	15h	1
2026-05-20	45	21–70	11.5 µg/m³	12h	1
2026-05-19	51	9–93	14.1 µg/m³	14h	2
2026-05-18	57	23–107	16.5 µg/m³	10h	1
2026-05-17	56	13–132	17.0 µg/m³	13h	1
2026-05-16	65	22–117	19.6 µg/m³	20h	2
2026-05-15	58	48–66	15.4 µg/m³	4h	2

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