TEHRAN, Nov. 24 (Xinhua) — Air pollution in Iran’s capital Tehran forced authorities to close schools and universities and allow optional remote work on Tuesday and Wednesday, as they moved to protect public health and reduce pollution…

TEHRAN, Nov. 24 (Xinhua) — Air pollution in Iran’s capital Tehran forced authorities to close schools and universities and allow optional remote work on Tuesday and Wednesday, as they moved to protect public health and reduce pollution…