Santa Cruz Seasonal Pollution
Santa Cruz 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 Madeira, Portugal.
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Average EPA AQI
17
Rank 47 of 58 cities by average AQI
PM2.5
3.4
ug/m3 annualized city average
Seasonality
December
Cleanest: July
Health indicator
0.2
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Santa Cruz
16
18
16
21
7
8
7
14
22
14
22
35
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Santa Cruz, the current global analytics build covers 309 daily rows from 2024-01-01 to 2024-12-30. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.