Smog grips Iran’s big cities despite holiday shutdowns, orange alert issued

A man sits in a park, following the increase in air pollution in Tehran, Iran, November 22, 2025.
A man sits in a park, following the increase in air pollution in Tehran, Iran, November 22, 2025.

Iran issued an orange air-pollution alert on Monday for several major urban centers, with official monitoring showing unhealthy air even as the country observed a public holiday and many schools and universities were closed or moved online.