What is the air quality trend in Heguan?

Over the past 8 days, Heguan had an average AQI of 76 based on station measurements. The worst day was 2026-06-01 with AQI 127.

How is Heguan air quality measured?

Air quality in Heguan 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 Heguan, China

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 12 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-08	60	43–74	16.7 µg/m³	21h	11
2026-06-07	58	50–72	15.3 µg/m³	24h	12
2026-06-06	63	47–132	17.9 µg/m³	24h	11
2026-06-05	70	58–86	21.3 µg/m³	24h	12
2026-06-04	70	55–86	21.0 µg/m³	24h	13
2026-06-03	76	59–95	24.1 µg/m³	24h	12
2026-06-02	90	54–108	30.4 µg/m³	24h	13
2026-06-01	127	127–127	45.9 µg/m³	1h	12

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