- The red alert is the highest level in Beijing's four- tier alert system for air pollution. - It mandates emergency measures such as closing schools, restricting vehicle use, and halting construction and factory work to reduce pollution.
Which city has issued a red alert for air pollution for the first time ever on December, 2015 with a heavy cloud of dangerous smog blanketing the city?
Asked in APSC CCE Prelims Exam 2016 · Topic: Pollution (Air Pollution: Types, sources, primary & secondary pollutants, smog, acid rain, effects, control technologies & policies.)
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