What is the air quality trend in Chaotian?

Over the past 15 days, Chaotian had an average AQI of 54 based on station measurements. The worst day was 2026-08-22 with AQI 99.

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.

109

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

307h

PM2.5 Station

307h · 4 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	70	31–108	21.5 µg/m³	20h	2
2026-09-04	62	30–102	18.2 µg/m³	21h	3
2026-09-03	49	8–78	13.0 µg/m³	22h	3
2026-09-02	44	24–64	10.9 µg/m³	23h	5
2026-09-01	44	11–108	12.0 µg/m³	24h	5
2026-08-31	47	14–154	13.6 µg/m³	23h	4
2026-08-30	48	22–89	13.0 µg/m³	22h	3
2026-08-29	44	15–99	11.6 µg/m³	21h	3
2026-08-28	47	19–66	12.0 µg/m³	21h	4
2026-08-27	56	13–152	15.8 µg/m³	23h	5
2026-08-26	56	8–115	15.9 µg/m³	20h	4
2026-08-25	45	13–72	11.8 µg/m³	22h	3
2026-08-24	57	18–107	16.2 µg/m³	22h	4
2026-08-23	47	12–101	12.5 µg/m³	22h	3
2026-08-22	99	99–99	34.9 µg/m³	1h	2

Back to Chaotian Air Quality