What is the air quality trend in Hetoudian?

Over the past 7 days, Hetoudian had an average AQI of 84 based on station measurements. The worst day was 2026-10-15 with AQI 120.

How is Hetoudian air quality measured?

Air quality in Hetoudian 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 Hetoudian, China

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

46h

PM2.5 Station

46h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-20	66	25–147	20.7 µg/m³	6h	1
2026-10-19	75	38–105	24.1 µg/m³	7h	1
2026-10-18	44	30–85	11.8 µg/m³	6h	2
2026-10-17	60	34–99	17.3 µg/m³	9h	1
2026-10-16	112	35–174	47.2 µg/m³	5h	1
2026-10-15	120	50–174	50.0 µg/m³	8h	2
2026-10-14	116	99–152	42.1 µg/m³	5h	1

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