Annual mean of PM 2.5 in µg/m3 in each of the 3,000 cities

Zabol, Iran

Gwalior, India

150 µg/m3

Bamenda,

Cameroon

Annual mean levels of PM 2.5 above 35µg/m3 are associated with significantly higher mortality risks

100

50

Asia

Africa

Europe

Middle

East

50

Europe

Tetovo,

Macedonia

50

Europe

Coyhaique,

Chile

Timaru,

New Zealand

San Salvador,

El Salvador

South

America

North and

Central America

Oce-

ania

Zabol, Iran

217

Gwalior, India

176

150 µg/m3

Bamenda, Cameroon

132

100

Annual mean levels of PM 2.5 above 35µg/m3 are associated with significantly higher mortality risks

50

Asia

Africa

Europe

Middle

East

Tetovo,

Macedonia

81

Coyhaique,

Chile

64

Timaru,

New Zealand

15

San Salvador,

El Salvador

42

 

50

Europe

South

America

North and Central America

Oce-

ania