Nairobi Health Impact
Nairobi averaged 30.9 ug/m3 PM2.5, equal to 6.2x the WHO annual PM2.5 guideline and about 1.4 cigarettes per day by the simple AQI Now indicator. The page uses OpenAQ-derived daily history for 3 mapped monitoring locations in Nairobi, Kenya.
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Average EPA AQI
80
Rank 2 of 3 cities by average AQI
PM2.5
30.9
ug/m3 annualized city average
Seasonality
May
Cleanest: March
Health indicator
1.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Nairobi
-
61
50
83
223
99
72
59
59
56
55
60
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For Nairobi, the current global analytics build covers 330 daily rows from 2024-01-28 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.