Kwai Chung Seasonal Pollution
Kwai Chung usually records its highest OpenAQ-derived EPA AQI in December and its cleanest month in July. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Hong Kong, Hong Kong.
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Average EPA AQI
60
Rank 7 of 11 cities by average AQI
PM2.5
15.2
ug/m3 annualized city average
Seasonality
December
Cleanest: July
Health indicator
0.7
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Kwai Chung
73
60
67
60
55
43
34
56
53
65
62
93
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Kwai Chung, the current global analytics build covers 364 daily rows from 2023-12-31 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.