Piraeus Health Impact
Piraeus averaged 11.4 ug/m3 PM2.5, equal to 2.3x 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 3 mapped monitoring locations in Attikí, Greece.
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Average EPA AQI
51
Rank 12 of 22 cities by average AQI
PM2.5
11.4
ug/m3 annualized city average
Seasonality
November
Cleanest: May
Health indicator
0.5
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Piraeus
55
57
49
52
47
52
49
48
50
49
59
49
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For Piraeus, the current global analytics build covers 294 daily rows from 2024-01-01 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.