Marinha Grande Health Impact
Marinha Grande averaged 10.9 ug/m3 PM2.5, equal to 2.2x the WHO annual PM2.5 guideline and about 0.5 cigarettes per day by the simple AQI Now indicator. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Leiria, Portugal.
Search city analytics
Average EPA AQI
Rank 6 of 58 cities by average AQI
PM2.5
10.9
ug/m3 annualized city average
Seasonality
February
Cleanest: August
Health indicator
0.5
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For Marinha Grande, the current global analytics build covers 77 daily rows from 2024-01-01 to 2024-10-23. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.