Agence France-Presse: Iran is to close schools for two days in Tehran, an official said on Saturday, following air pollution three times the acceptable level that has blanketed the city in smog.
Air quality in Iran's capital was the worst for at least nine months this week, media said, and airborne particles from car emissions were at "seven times the standard level".
"All schools will be closed on Sunday in Tehran and in the... towns of Shahr-Rey and Islam-Shahr (both south of the capital)," said environment official...