As of Monday, December 2, hazardous air quality levels have again been registered in Tehran, with an air quality reading of 166 at 12:00 (local time).
An odd-even traffic control scheme was implemented on Friday, November 30, and is likely to remain in place on Monday. Schools and universities have closed, and outdoor sport matches have been banned until further notice. The situation is expected to improve slightly in the coming days.
An AQI reading of 0-50 is considered good, 51-100 moderate, and 101-200+ unhealthy.
Individuals in Tehran are advised to monitor the situation, limit outdoor activities until the situation normalizes, and wear N95 rated masks for protection. Children and those with chronic respiratory illnesses should exercise increased caution. Individuals are advised to seek medical attention if experiencing breathing difficulties or other health concerns.