Heunghae Seasonal Pollution
Heunghae usually records its highest OpenAQ-derived EPA AQI in April and its cleanest month in September. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in Gyeongbuk, South Korea.
Search city analytics
Average EPA AQI
55
Rank 62 of 100 cities by average AQI
PM2.5
12.8
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
Heunghae
-
-
57
71
58
63
52
53
40
47
54
61
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Heunghae, 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.