Two women, one in a face mask, talk as they walk near the bazaar in central Tehran
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Two women, one in a face mask (L), talk as they walk near the bazaar in central Tehran December 8, 2010. Acute air pollution in Tehran cannot be blamed on gasoline produced in an emergency plan to foil sanctions over Iran's nuclear programme, officials said on Wednesday, instead blaming the weather and domestic heaters.
A weather system has trapped air in the Iranian capital for four weeks, posing a major health risk for people with respiratory problems and pushing up hospital admissions by more than 20 percent, according to the Health Ministry. REUTERS/Caren Firouz (IRAN - Tags: POLITICS ENVIRONMENT ENERGY)