What is the air quality trend in Chaotian?

Over the past 21 days, Chaotian had an average AQI of 54 based on station measurements. The worst day was 2026-09-05 with AQI 78.

How is Chaotian air quality measured?

Air quality in Chaotian 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 Chaotian, China

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

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

115

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

465h

PM2.5 Station

465h · 3 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	78	48–135	25.0 µg/m³	17h	3
2026-09-04	56	19–86	15.5 µg/m³	23h	4
2026-09-03	50	23–71	12.9 µg/m³	24h	4
2026-09-02	53	16–89	14.1 µg/m³	24h	5
2026-09-01	46	16–80	12.1 µg/m³	24h	6
2026-08-31	40	14–125	10.8 µg/m³	22h	5
2026-08-30	56	25–105	15.7 µg/m³	24h	4
2026-08-29	46	25–63	11.4 µg/m³	22h	3
2026-08-28	50	31–66	12.8 µg/m³	23h	5
2026-08-27	56	19–102	15.5 µg/m³	24h	5
2026-08-26	57	19–149	15.9 µg/m³	23h	4
2026-08-25	43	3–69	11.0 µg/m³	22h	3
2026-08-24	52	22–74	13.9 µg/m³	22h	5
2026-08-23	55	17–159	16.2 µg/m³	24h	3
2026-08-22	49	12–99	13.2 µg/m³	24h	4
2026-08-21	58	32–87	16.0 µg/m³	23h	3
2026-08-20	63	31–114	18.4 µg/m³	24h	5
2026-08-19	63	38–92	18.1 µg/m³	24h	4
2026-08-18	58	27–114	16.6 µg/m³	24h	4
2026-08-17	54	25–102	14.6 µg/m³	24h	3
2026-08-16	71	48–115	21.2 µg/m³	4h	3

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