What is the air quality trend in Hejiang?

Over the past 15 days, Hejiang had an average AQI of 65 based on station measurements. The worst day was 2026-05-21 with AQI 82.

How is Hejiang air quality measured?

Air quality in Hejiang 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 Hejiang, China

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

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

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

314h

PM2.5 Station

314h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	78	74–81	25.2 µg/m³	4h	2
2026-05-29	69	35–118	21.1 µg/m³	24h	2
2026-05-28	62	37–89	17.9 µg/m³	23h	2
2026-05-27	72	46–123	21.9 µg/m³	23h	2
2026-05-26	58	18–85	16.2 µg/m³	24h	2
2026-05-25	56	18–102	15.8 µg/m³	22h	2
2026-05-24	64	34–97	18.6 µg/m³	23h	2
2026-05-23	64	16–106	18.9 µg/m³	21h	2
2026-05-22	67	27–107	20.4 µg/m³	24h	2
2026-05-21	82	50–123	26.6 µg/m³	24h	2
2026-05-20	63	29–151	18.3 µg/m³	21h	2
2026-05-19	60	32–82	16.7 µg/m³	23h	2
2026-05-18	55	18–90	15.2 µg/m³	23h	2
2026-05-17	61	33–124	17.5 µg/m³	20h	2
2026-05-16	67	28–112	20.2 µg/m³	15h	2

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