Air pollution reaches high levels in Iran's cities
epa11049237 Iranians walk on a pedestrian bridge as smog obscures the Milad Tower, also known as the Tehran Tower, in the capital city of Tehran, Iran, 30 December 2023. Air pollution has reached high levels in many cities across Iran, posing a threat to the health of its citizens, which has prompted the authorities to close schools on some days in the past month. EPA/ABEDIN TAHERKENAREH
