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Cambridge Seasonal Pollution

Cambridge usually records its highest OpenAQ-derived EPA AQI in April and its cleanest month in November. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Ontario, Canada.

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Average EPA AQI

50

Rank 1 of 158 cities by average AQI

PM2.5

12.2

ug/m3 annualized city average

Seasonality

April

Cleanest: November

Health indicator

0.6

cigarette-equivalent per day

Yearly EPA AQI trend

0501002024Cambridge

Seasonal EPA AQI heatmap

JanFebMarAprMayJunJulAugSepOctNovDec
Cambridge
-
-
-
69
47
52
57
58
53
37
37
51

What this seasonality page measures

Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.

For Cambridge, the current global analytics build covers 224 daily rows from 2024-04-28 to 2025-01-01. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.

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