Ulsan Health Impact
Ulsan averaged 14.1 ug/m3 PM2.5, equal to 2.8x the WHO annual PM2.5 guideline and about 0.6 cigarettes per day by the simple AQI Now indicator. The page uses OpenAQ-derived daily history for 18 mapped monitoring locations in Ulsan, South Korea.
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Average EPA AQI
58
Rank 49 of 100 cities by average AQI
PM2.5
14.1
ug/m3 annualized city average
Seasonality
April
Cleanest: September
Health indicator
0.6
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Ulsan
-
-
58
78
60
69
53
53
47
47
55
59
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For Ulsan, the current global analytics build covers 287 daily rows from 2024-03-19 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.