TEHRAN, Nov. 27 (MNA) – With the air pollution index increasing to 187 and Tehran ranked as the fifth most polluted city in the world, schools were closed and traffic rules was put into operation but the air quality…
TEHRAN, Nov. 27 (MNA) – With the air pollution index increasing to 187 and Tehran ranked as the fifth most polluted city in the world, schools were closed and traffic rules was put into operation but the air quality…