When will the smog control in Xi 'an begin?

The smog control in Xi 'an began on February 30th, 65438. According to relevant data, Class III emergency response of heavily polluted weather was started at 1 1 on February 30th. According to the regulations, motor vehicles are not allowed to pass during the New Year holiday, and heavy vehicles such as yellow label vehicles and muck trucks are prohibited from entering the Third Ring Road. At 65438+February 29th 16, the headquarters issued a blue warning of heavy polluted weather in our city. From the night of February 29th, 65438, the pollution index of our city and its surrounding areas continued to rise, reaching the level of severe pollution in some periods. On the morning of the 30th, the environmental protection and meteorological departments, together with relevant experts, discussed again. It is predicted that the meteorological conditions in our city will not be conducive to the diffusion of air pollutants in the next 48 hours, and the overall ambient air quality will be at a moderate and severe pollution level, with serious pollution in some time periods or regions.