Mashhad's Air Was Clean Only Four Days in First Half of This Year

The Deputy for Human Environment at the Khorasan Razavi Department of Environment said that Mashhad residents enjoyed clean air for only four days in the first half of the current year.

Khorasan Razavi, Deputy Director of Human Environment of the General Department of Environmental Protection, said: Mashhadis have had only four days of clean air in the first half of this year.