Annual mean concentration of fine particulate matter

(2.5 micrometres or less) in micrograms per cubic metre

for 3,000 towns and cities around the world

Xingtai,

China

128

Zabol,

Iran

217

London, UK

15

Gwalior,

India

176

Coyhaique,

Chile

64

Bamenda,

Cameroon

132

London, UK

15

Xingtai,

China

128

Monterrey,

Mexico

36

Zabol,

Iran

217

San Salvador,

El Salvador

42

Bamenda,

Cameroon

132

Gwalior,

India

176

Annual mean concentration of fine particulate matter (2.5 micrometres or less) in micrograms per cubic metre for 3,000 towns and cities around the world

Coyhaique,

Chile

64