Shah Alam Health Impact
Shah Alam averaged 29.4 ug/m3 PM2.5, equal to 5.9x the WHO annual PM2.5 guideline and about 1.3 cigarettes per day by the simple AQI Now indicator. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Selangor, Malaysia.
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Average EPA AQI
90
Rank 1 of 2 cities by average AQI
PM2.5
29.4
ug/m3 annualized city average
Seasonality
March
Cleanest: October
Health indicator
1.3
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Shah Alam
96
110
113
113
95
94
103
93
69
63
65
70
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For Shah Alam, the current global analytics build covers 356 daily rows from 2024-01-09 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.