What is the air quality trend in Ganghwa-gun?

Over the past 8 days, Ganghwa-gun had an average AQI of 32 based on station measurements. The worst day was 2026-09-02 with AQI 42.

How is Ganghwa-gun air quality measured?

Air quality in Ganghwa-gun 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 Ganghwa-gun, South Korea

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

Historical PM2.5 and AQI trend from monitoring stations near Ganghwa-gun, South Korea.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 29 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	33	28–42	7.9 µg/m³	21h	64
2026-09-04	33	26–51	8.0 µg/m³	24h	64
2026-09-03	36	27–55	8.8 µg/m³	24h	59
2026-09-02	42	32–52	10.2 µg/m³	24h	59
2026-09-01	28	21–36	6.8 µg/m³	24h	66
2026-08-31	27	20–40	6.4 µg/m³	24h	54
2026-08-30	32	21–47	7.8 µg/m³	24h	57
2026-08-29	30	30–30	7.2 µg/m³	1h	43

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