Santiago, Chile - Environmental issues associated with urban change.

Atmospheric pollution:

Causes:

• Santiagos location in a valley, coastal ranges to the east, Andes to the west, along with cold winters
• Increase in population (1.5 m in 1960 - 5.5 m in 2005), and economic boom. 

Impacts:

• During winter, cold air sinks into valley, whilst warm air is replaced above, temperature inversion, trapping pollutants.
• Health effected, some pollutants are carconegenic. 
• average car ownership…