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Beijing's municipal authorities will issue new regulations to improve air quality by the end of this year.
The new regulations include higher standards for vehicle fuel, and stricter restrictions2 on industrial and exhaust gas emissions3.
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 disperse4 it or reduce its density5."
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.
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1 affected | |
adj.不自然的,假装的 | |
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2 restrictions | |
约束( restriction的名词复数 ); 管制; 制约因素; 带限制性的条件(或规则) | |
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3 emissions | |
排放物( emission的名词复数 ); 散发物(尤指气体) | |
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4 disperse | |
vi.使分散;使消失;vt.分散;驱散 | |
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5 density | |
n.密集,密度,浓度 | |
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6 hazardous | |
adj.(有)危险的,冒险的;碰运气的 | |
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