英闻天下——210 Beijing to Release Regulations to Improve Air Quality
英语课
Beijing's municipal authorities will issue new regulations to improve air quality by the end of this year.
The smoggy weather has affected 1 a total area of 1.3 million square kilometers in China recently.
The new regulations include higher standards for vehicle fuel, and stricter restrictions 2 on industrial and exhaust gas emissions 3.
Traffic authorities in Beijing have also ordered 30 percent of official cars in the city to be off road.
Ma Xuekuan is the chief weather forecaster with National Meteorological Center.
"It is a long process to change the situation. It is particularly hard to tackle such a large-scale smog through artificial means. Only strong wind or rainfall can disperse 4 it or reduce its density 5."
He advises people to take precautionary measures to protect their health.
The smog has also disrupted traffic, with planes grounded and highways closed during the on-going Spring Festival travel rush.
The smog has also led to a surge in respiratory illnesses, particularly among children and the elderly.
Studies show that most of the pollution comes from coal burning, motor vehicles, industrial emissions and dust.
It was the fourth round of heavy smog to hit Beijing in a month.
Beijing's air quality has worsened again since Monday, with a significant thickening of the PM 2.5, or airborne particles measuring less than 2.5 micrometers in diameter.
The average concentration of PM 2.5 has reached hazardous 6 levels.
adj.不自然的，假装的
- 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。
约束( restriction的名词复数 )； 管制； 制约因素； 带限制性的条件（或规则）
- I found the restrictions irksome. 我对那些限制感到很烦。
- a snaggle of restrictions 杂乱无章的种种限制
排放物( emission的名词复数 )； 散发物（尤指气体）
- Most scientists accept that climate change is linked to carbon emissions. 大多数科学家都相信气候变化与排放的含碳气体有关。
- Dangerous emissions radiate from plutonium. 危险的辐射物从钚放散出来。
vi.使分散；使消失；vt.分散；驱散
- The cattle were swinging their tails to disperse the flies.那些牛甩动着尾巴驱赶苍蝇。
- The children disperse for the holidays.孩子们放假了。
n.密集，密度，浓度
- The population density of that country is 685 per square mile.那个国家的人口密度为每平方英里685人。
- The region has a very high population density.该地区的人口密度很高。