Beijing Seasonal Pollution
Beijing usually records its highest OpenAQ-derived EPA AQI in April and its cleanest month in December. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Beijing, China.
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Average EPA AQI
111
Rank 1 of 6 cities by average AQI
PM2.5
43.1
ug/m3 annualized city average
Seasonality
April
Cleanest: December
Health indicator
2.0
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Beijing
111
118
129
136
113
111
109
86
86
133
123
78
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Beijing, the current global analytics build covers 357 daily rows from 2024-01-02 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.