The Beijing Municipal Party Committee recently passed an emergency air pollution plan. It assigned blue, yellow, orange, and red colors to measure different pollution levels in the air. If it is a “red” level, schools will be closed and if it is a red and orange level, manufacturing plants will be shut down, no firecrackers can be lit and no outdoor BBQ and burning of garbage, leaves, or stalks will be allowed. City law enforcement organs are instructed to carry out the emergency plan.
Source: Xinhua, October 18, 2013