Iran 's schools , public offices , universities and banks close Thursday and Wednesday . Residents have been asked to avoid outdoor activities and encouraged to use public transportation . Tehran shut down Wednesday to cut down on auto emissions and traffic . The government says despite a over 80 percent drop in traffic , pollution is at critical levels .
Iran 's schools , public offices , universities and banks close Thursday and Wednesday . Tehran shut down Wednesday to cut down on auto emissions and traffic . The government says despite a over 80 percent drop in traffic , pollution is at critical levels .