10 worst cities in rest of North and South America
PM2.5 annual mean, micrograms per cubic metre
amount
control
Coyhaique
Chile
64
Lima
Peru
48
La Paz
Bolivia
44
Santa Gertrudes
Brazil
44
San Salvador
El Salvador
42
La Estrella
Colombia
41
Guatemala
Guatemala
41
Tegucigalpa
Honduras
36
Monterrey
Mexico
36
Osorno
Chile
35
0
50
100
150
200