Tehran Is Choked by Annual Buildup of Air Pollution
The haze occurs every year when cold air and windless days trap fumes belched out by millions of cars and hundreds of old factories.
Source: http://goo.gl/mag/QXVrrFc
Tehran Is Choked by Annual Buildup of Air Pollution
The haze occurs every year when cold air and windless days trap fumes belched out by millions of cars and hundreds of old factories.
Source: http://goo.gl/mag/QXVrrFc
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