Smog disrupts Beijing traffic, flights

 　　BEIJING, Feb.17 (Xinhua) -- Fresh smog shrouded¹ Beijing and some other provinces in China early on Sunday, disrupting highway traffic and flights.

　　Readings for PM2.5, hazardous² particles measuring 2.5 microns in diameter or less, exceeded 200 micrograms per cubic meter at 9 a.m. in some areas, said the Beijing Environmental Protection Monitoring Center.

　　Moderate or serious air pollution was reported in many parts of Beijing, with a visibility of no more than 500 meters in the early morning, the center added.

　　The visibility at Beijing Capital International Airport at one point fell to 5 to 10 meters, delaying some flights.

　　Beijing stretches of expressways linking to other cities including Kaifeng, Harbin, Shanghai and Tianjin were temporarily closed, Beijing municipal traffic administration authorities said.

　　The provinces of Tianjin, Hebei and Henan were also affected³ by heavy smog on Sunday.

　　The air quality index reached 500, or extreme pollution, in five monitoring sites at 8 a.m. in Shijiazhuang, the provincial⁴ capital of Hebei.

　　Prolonged smog hit many Chinese cities in January.

1 shrouded   

v.隐瞒( shroud的过去式和过去分词 )；保密

参考例句：

• The hills were shrouded in mist . 这些小山被笼罩在薄雾之中。
• The towers were shrouded in mist. 城楼被蒙上薄雾。 来自《简明英汉词典》

2 hazardous   

adj.(有)危险的，冒险的；碰运气的

参考例句：

• These conditions are very hazardous for shipping.这些情况对航海非常不利。
• Everybody said that it was a hazardous investment.大家都说那是一次危险的投资。

3 affected   

adj.不自然的，假装的

参考例句：

• She showed an affected interest in our subject.她假装对我们的课题感到兴趣。
• His manners are affected.他的态度不自然。

4 provincial   

adj.省的，地方的；n．外省人，乡下人

参考例句：

• City dwellers think country folk have provincial attitudes.城里人以为乡下人思想迂腐。
• Two leading cadres came down from the provincial capital yesterday.昨天从省里下来了两位领导干部。