Hongseong Health Impact
Hongseong averaged 15.4 ug/m3 PM2.5, equal to 3.1x the WHO annual PM2.5 guideline and about 0.7 cigarettes per day by the simple AQI Now indicator. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in Chungnam, South Korea.
Search city analytics
Average EPA AQI
60
Rank 34 of 100 cities by average AQI
PM2.5
15.4
ug/m3 annualized city average
Seasonality
April
Cleanest: July
Health indicator
0.7
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Hongseong
-
-
73
74
63
65
43
57
44
59
69
66
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For Hongseong, the current global analytics build covers 286 daily rows from 2024-03-20 to 2024-12-31. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.