Catford Health Impact
Catford averaged 8.7 ug/m3 PM2.5, equal to 1.7x the WHO annual PM2.5 guideline and about 0.4 cigarettes per day by the simple AQI Now indicator. The page uses OpenAQ-derived daily history for 7 mapped monitoring locations in Lewisham, United Kingdom.
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Average EPA AQI
42
Rank 44 of 171 cities by average AQI
PM2.5
8.7
ug/m3 annualized city average
Seasonality
November
Cleanest: February
Health indicator
0.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Catford
44
35
44
36
49
39
36
40
43
41
58
40
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For Catford, the current global analytics build covers 364 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.