What is the air quality trend in Hekou?

Over the past 7 days, Hekou had an average AQI of 74 based on station measurements. The worst day was 2026-10-15 with AQI 114.

How is Hekou air quality measured?

Air quality in Hekou 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 Hekou, China

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

161h

PM2.5 Station

161h · 5 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-20	67	17–116	20.6 µg/m³	24h	4
2026-10-19	69	38–112	20.8 µg/m³	24h	4
2026-10-18	53	22–77	14.8 µg/m³	24h	4
2026-10-17	55	35–74	14.5 µg/m³	24h	4
2026-10-16	78	35–149	25.0 µg/m³	22h	4
2026-10-15	114	66–159	41.3 µg/m³	23h	5
2026-10-14	86	38–128	28.8 µg/m³	20h	3

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