Huajing Seasonal Pollution
Huajing usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in September. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Shanghai, China.
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Average EPA AQI
94
Rank 3 of 6 cities by average AQI
PM2.5
34.9
ug/m3 annualized city average
Seasonality
January
Cleanest: September
Health indicator
1.6
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Huajing
164
151
129
97
79
83
58
69
57
71
-
-
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Huajing, the current global analytics build covers 244 daily rows from 2023-12-31 to 2024-10-20. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.