Chile Seasonal Pollution
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI. This pilot covers 60 eligible cities with OpenAQ-derived daily AQI history.
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Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Coyhaique
64
65
88
130
228
188
161
154
95
86
79
71
Nacimiento
70
72
74
113
181
142
166
154
104
95
104
83
Villarrica
-
-
-
87
136
122
151
140
118
81
77
68
Cochrane
63
66
-
142
195
158
-
-
-
81
71
63
Osorno
57
61
74
107
187
130
163
155
122
82
70
64
Puerto Varas
66
75
81
105
159
109
162
145
116
98
83
66
El Bosque
78
78
82
94
125
128
157
120
100
83
78
81
Alerce
63
94
81
103
138
111
149
123
107
78
73
63
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.