Peru Seasonal Pollution
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI. This pilot covers 14 eligible cities with OpenAQ-derived daily AQI history.
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Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Huaycan
94
86
93
151
192
195
161
178
176
172
160
154
Lima
74
66
66
57
55
106
124
125
119
104
87
92
Ascope
-
-
57
64
61
72
70
68
68
66
65
66
Pisco
-
-
35
52
64
67
58
58
70
66
62
69
Arequipa
-
-
64
60
54
56
56
55
60
56
57
61
Cerro de Pasco
-
-
31
43
51
56
58
78
97
55
39
33
Chimbote
-
-
41
40
55
53
49
53
58
58
63
36
Santo Tomás
-
-
16
25
40
53
57
66
65
55
30
31
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.