Brazil Seasonal Pollution
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI. This pilot covers 4 eligible cities with OpenAQ-derived daily AQI history.
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Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Taboão da Serra
28
-
41
58
57
71
70
86
93
53
40
38
Caxias do Sul
-
-
-
-
-
-
-
-
98
51
37
33
Rio de Janeiro
40
39
36
54
61
75
66
65
76
41
34
37
Iguaçu
22
25
26
37
42
47
38
41
47
25
22
21
Methodology
The extractor maps OpenAQ monitoring locations to the nearest AQI Now city in the same country, aggregates PM2.5 and PM10 to daily city averages, and converts those concentrations to US EPA AQI. Country tool pages use only city summaries that satisfy the configured minimum daily coverage threshold.