Maia Health Impact
Maia averaged n/a ug/m3 PM2.5, equal to n/ax the WHO annual PM2.5 guideline. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Porto, Portugal.
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Average EPA AQI
15
Rank 51 of 58 cities by average AQI
PM2.5
n/a
ug/m3 annualized city average
Seasonality
September
Cleanest: May
Health indicator
n/a
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Maia
20
22
15
15
11
14
13
12
34
11
16
21
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For Maia, the current global analytics build covers 267 daily rows from 2024-01-10 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.