The plan also calls for education authorities to instruct schools to limit or completely stop outdoor activity during periods of heavy air pollution.
方案另外要求教育部门指示学校等在严重空气污染期间减少或完全终止户外活动。
The municipal environmental monitoring center said readings for PM2.5, or airborneparticles measuring less than 2.5 micrometers in diameter, had reached more than 700 micrograms per square meter at several monitoring stations in Beijing, reaching as high as 993 Saturday evening.
北京市环境检测中心表示，在北京市的几个监测站，PM2.5的浓度检测结果(即大气中直径小于或等于2.5微米的颗粒物)达到了每立方米700微克以上，周六晚间更是高达993微克。
"These figures represent extremely bad pollution. Pollutants have gradually accumulated over the course of recent windless days, making the air quality even worse," said Zhu Tong, a professor from the college of environmental sciences and engineering at Peking University.
北京大学环境科学与工程学院教授朱彤说：“这些数值意味着非常严重、可怕的污染，目前北京无风静稳，新排放的污染物还在不断累积，空气质量更糟。”
The pollution is expected to engulf Beijing until Wednesday, when wind will arrive to blow the smog away, according to a weather report from the meteorological station.
根据北京气象站的天气预报，严重空气污染将持续影响北京至周三即1月16日，周三将有一股冷空气抵到北京吹散雾霾。
