Demographia

Air Pollution Intensity in International Cities:
Pollution per Square Mile by Geography: 1990/1:
In Annual Metric Tons

Area NOx CO VOC Average Population Density Number of Urban Areas in Analysis
Asia 395 2,182 415 48,457 8
Australia 72 620 76 3,313 5
Canada 290 1,728 233 10,757 1
Europe 173 992 154 13,496 10
United States 83 705 83 3,771 10

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