What is the air quality trend in Yangsan?

Over the past 8 days, Yangsan had an average AQI of 50 based on station measurements. The worst day was 2026-08-03 with AQI 57.

How is Yangsan air quality measured?

Air quality in Yangsan 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 Yangsan, South Korea

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

Historical PM2.5 and AQI trend from monitoring stations near Yangsan, South Korea.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 38 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-08	39	37–43	9.4 µg/m³	3h	50
2026-08-07	48	37–59	11.6 µg/m³	24h	39
2026-08-06	52	28–85	13.6 µg/m³	24h	61
2026-08-05	52	43–62	13.1 µg/m³	24h	67
2026-08-04	52	33–66	13.4 µg/m³	24h	48
2026-08-03	57	50–74	15.2 µg/m³	24h	38
2026-08-02	53	40–59	13.4 µg/m³	24h	29
2026-08-01	53	37–79	13.6 µg/m³	18h	31

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