Here are some photos of Tehran. Photos on the left are taken on 17th and 21st Dec 2012 and the ones on the right shows the situation this morning.
How could you run in this kind of situation? Or would you?
Have a marathon planned in three weeks and all I can do is training indoors. I had a long run planned for this morning but I didn't go out as I could barely breath. When you are running or doing another endurance sports, obviously your body needs more oxygen for your muscles.You breath harder and that inserts more toxin into your system. This is about the only time that exercise can bring more harm than benefit.