What is the air quality trend in Chaotian?

Over the past 14 days, Chaotian had an average AQI of 51 based on station measurements. The worst day was 2026-07-09 with AQI 65.

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.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

287h

PM2.5 Station

287h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	57	17–93	16.4 µg/m³	22h	2
2026-07-20	48	15–80	13.1 µg/m³	20h	2
2026-07-19	50	9–78	13.7 µg/m³	23h	2
2026-07-18	40	9–102	10.2 µg/m³	20h	2
2026-07-17	46	8–78	12.2 µg/m³	19h	2
2026-07-16	48	26–74	12.4 µg/m³	16h	2
2026-07-15	49	10–77	13.1 µg/m³	21h	2
2026-07-14	49	20–71	12.8 µg/m³	21h	2
2026-07-13	55	27–82	15.1 µg/m³	22h	2
2026-07-12	56	18–104	16.0 µg/m³	21h	2
2026-07-11	59	18–133	16.5 µg/m³	19h	2
2026-07-10	49	20–93	13.4 µg/m³	20h	2
2026-07-09	65	19–500	34.8 µg/m³	21h	2
2026-07-08	53	14–86	14.4 µg/m³	22h	3

Back to Chaotian Air Quality