China Battles Worst Air Pollution of the Year
China suffered its worst air pollution of the year recently.
More than 70 Chinese cities released warnings to citizens in the last few days about pollution reaching dangerous levels.
The poor air quality led the government to order factories, some power plants and schools to close. But there were reports that some local officials were not obeying the orders.
In one city in northern Hebei province, people wrote on social media that schools were kept open although the area had the highest pollution threat. Media reports in the central province of Henan also showed pictures of students completing school activities in the dirty open air.
State-run news agency Xinhua reported that an official in Henan province said factory production was continuing. The official said up to 4,000 factories had not stopped or limited production as ordered by the government. Records of power use at the factories showed little change in the amount of production.
The Ministry of Environmental Protection said in a statement Monday that only "a small number of businesses" had not taken the bans seriously and continued operations.
Driving restrictions were also put in effect and hundreds of flights were delayed or cancelled in Beijing because of poor visibility.
The ministry said more than 100,000 drivers in Beijing had been fined for violating the traffic bans.
The World Health Organization measures air quality by the amount of small, particles in it, known as PM2.5. Small particles of this size are easily breathed in and can damage the lungs.
The WHO identifies a safe level of air quality as containing 10-25 micrograms per cubic meter of PM2.5. Beijing reached dangerous levels of more than 400 micrograms per cubic meter this week.
Weather officials were predicting that nighttime winds could finally push out much of the pollution from Beijing and other cities by Thursday.
Ma Yongliang is a professor with Tsinghua University's school of environment. He said temporary government restrictions will not solve the nation's pollution problems over a long period of time.
"In the long run, the pollution problem can only be eased by adjusting the country's industrial structure, or accelerating the upgrading of polluting industries, so as to cut down the emission sources of pollutants," Ma said.
The professor praised the government's efforts to reduce carbon-dioxide after an action plan was started in 2013.
But the increased use of coal in winter for heating homes is still a big problem. Reducing these emissions will remain difficult for China's government as it attempts to find cleaner energy alternatives.
I'm Bryan Lynn.
1.Air Pollution 空气污染
The air pollution exceeds most acceptable levels by 10 times or more.
2.clean energy 清洁能源
First, we should use more clean energy and less coal and oil.
3.so as to 以便；以致
How can faculty improve their teaching so as to encourage creativity?
4.air quality 空气质量
Besides, the air quality and entironment are very good also.
1.so as to cut down the emission sources of pollutants," Ma said.
cut down 削减；砍到
If you spend more than your income, can you try to cut down?
These people do not have the equipment or the manpower to cut down the trees.
2.More than 70 Chinese cities released warnings to citizens in the last few days about pollution reaching dangerous levels.
the last few days 过去几日；近几日
They've pieced together his movements for the last few days before his death.
Social unrest, never far below the surface in Brazil, has erupted over the last few days.
重度的空气污染促使政府下令工厂、发电厂停工，学校停课 。但是有消息称，某些地方政府官员并未遵从 。
在河北省某城市，有人在网上爆料称，虽然该市污染达到峰值，但该市的学校却并未停课 。中部的河南省也有媒体发布了学生在重度雾霾天气中进行室外活动的照片 。
新华社报道称，河南省一位官员表示该地区的工厂生产仍在继续 。他还指出，多达4000家工厂没有遵守政府停业或限产的指令 。工厂用电记录显示，作业产量几乎没受影响 。
车辆限行也开始实施 。北京数百架航班因空气能见度差被延误或取消 。
世卫组织通过空气中含有的微小颗粒物数量（PM2.5）判断空气质量 。这种微小颗粒物易被人体吸入，并可能损害肺部 。
世卫组织规定，PM2.5浓度在每立方米10-25微克范围时为安全值 。本周，北京的PM2.5浓度高达每立方米400微克 。
马永亮是清华大学环境学院的教授 。他表示，中国政府的临时限令无法长期解决空气污染问题 。
然而，因冬季供暖引起的煤炭需求上涨仍然是一项棘手问题 。虽然中国政府积极寻找更清洁能源替代品，但是减少煤炭排放仍然比较困难 。