What is the air quality trend in Hongjiang?

Over the past 9 days, Hongjiang had an average AQI of 67 based on station measurements. The worst day was 2026-10-09 with AQI 127.

How is Hongjiang air quality measured?

Air quality in Hongjiang 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 Hongjiang, China

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

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

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

27h

PM2.5 Station

27h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-09	127	127–127	46.1 µg/m³	1h	1
2026-10-08	92	87–97	31.6 µg/m³	2h	1
2026-10-07	79	53–162	27.0 µg/m³	8h	1
2026-10-06	59	31–87	17.0 µg/m³	5h	1
2026-10-05	40	21–57	10.0 µg/m³	4h	1
2026-10-04	76	42–109	24.4 µg/m³	2h	1
2026-10-03	40	13–68	11.7 µg/m³	2h	1
2026-10-02	82	74–91	27.1 µg/m³	2h	1
2026-10-01	14	14–14	3.4 µg/m³	1h	1

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