Kathmandu Health Impact
Kathmandu averaged 69.5 ug/m3 PM2.5, equal to 13.9x the WHO annual PM2.5 guideline and about 3.2 cigarettes per day by the simple AQI Now indicator. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Nepal, Nepal.
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Average EPA AQI
148
Rank 1 of 4 cities by average AQI
PM2.5
69.5
ug/m3 annualized city average
Seasonality
April
Cleanest: August
Health indicator
3.2
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Kathmandu
179
177
165
195
163
118
96
91
99
134
159
184
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For Kathmandu, the current global analytics build covers 274 daily rows from 2024-01-05 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.