Ceremony of honoring the ambassadors of clean air in Tehran Jan 19, 2021 The ceremony of honoring the clean air ambassadors of Tehran was held on Tuesday, January 19th, 2021. The ceremony was held in the presence of Dr. Pirooz Hanachi, Mayor of Tehran, and Seyed Manaf Hashemi, Deputy of Transportation and Traffic of Tehran Municipality, in Iran Zamin Hall. Mojtaba Arabzadeh https://www.tehranpicture.ir/u/8Io