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英国论文代写范文精选-About water pollution

2016-06-20 | 来源:51Due教员组 | 类别:更多范文

51Due英国论文代写网精选assignment代写范文:“About water pollution”,这篇论文讨论了水污染问题。2002年,全国污水排放量已达到631亿吨了。大多数城市的地下水在一定程度上受到了污染。日益严重的水污染不仅降低了水的功能,还进一步加剧了水资源短缺的矛盾,给城镇居民的健康造成了严重威胁。对于我们被污染的生命之源,我们应该如何应对?

This paper make a description and analysis about the present situation of water resources and pollution in our country, using the method of state governance, and puts forward personal views and opinions. The national polluted water emissions increased by 31.5 billion tons in 1980 to 63.1 billion tons in 2002.

Most urban groundwater polluted to some extent, and has a tendency to increase year by year. The use of the increasingly serious water pollution not only reduces the water functions, further aggravated the contradiction of water resource shortage, but also a serious threat to urban residents drinking water safety and health. For our life source being polluted, how should we respond?

From The first national water resources census bulletinBy the end of 2011,there are 45000 reasons basin area of 50 square kilometers above, total length of 1.5085 million km. There are 22900 reasons basin area of 100 square kilometers above. There are 2865 natural lakes water is greater than 1 square kilometers with a total area of 7.8 square kilometers. The country has about 98000 reservoirs, with a total capacity of 98000 cubic meters.

The national total of 638900 lakes water inlet, the earth's surface and underground water source is respectively 1.17 and 1847. China's per capita water resources is only 2100 cubic meters, only 28% of the world's per capita. In the northern region, water resource is very shortage, the Yellow River, huaihe river, haihe river three per capita water resources quantity respectively for the national average of only 30.1%, 21.6% and 12.9%. China's per capita fresh water resources is only a quarter of the world's average, ranked 110 in the world, is one of the poorest countries in the world per capita water resources.

Available water the presence of more than 400 cities in more than 600 cities has water supply shortage problem, the serious water shortage city more than 110, the national total water shortage of 6 billion cubic meters. China's top ten river basin water quality success rate is 2/3, Local water quality is worryingoverall. Through years of efforts, we have improved water quality in China, the top ten overall for watershed water quality mild pollution, but at local area, the water quality of local water environment pollution is still serious.

Recently published in domestic academic journal article. Surface water contains 68 kinds of antibiotics in China, and the concentration is higher. There are 90 kinds of the antibiotic pharmaceutical ingredients being checconcentration is much higher than abroad. 90% of our country urban groundwater by different level of organic and inorganic pollution of poisonous and harmful pollutants, 70% of the pollution of river water system, more than 90% of the river pollution flows through the city.

On enhancing urban water supply water saving and water pollution prevention and control work Promulgated by the state council in 2000 point out that we should gradually change the past a drainage system, a single reservoir and a river water to the city water supply way, Take

By the end of 2013, the total 3895 key projects, medium and small rivers Management River is 35000 kilometers long. By 2015, the project management of small and medium-sized rivers around 5000, governance river is 60000 kilometers long, can make the 340 million population and 330 million mu of farmland protected by flood control. In order to ensure the river health life, implementing strict water management system in our country, defined the development and utilization of water resources, water use efficiency, water function area restriction. Strict control into the lakes pollution gross, the position is beyond the water function area limits of the total area, limit for examination and approval of new water and sewage outlet into the rivers.

I think the best way to curb water pollution is in legislation and law enforcement supervision. The water pollution problem has to be reckoned with, because it has two characteristics: The first: concealment, imperceptible. Second: once the pollution, it is difficult to treatment and recovery. In the driven of the interests, pale the role of the propaganda work, to really stop water pollution phenomenon only can depends on the guarantee of law and law enforcement supervision. Therefore, a specific law to protect drinking water sources is fundamental. Strengthen the regulation of drinking water sources protection law enforcement is the important guarantee. To continue increasoing the intensity of law enforcement inspection, investigate seriously illegal threat to drinking water quality environment act.

For urban water conservation, I put forward the following SuggestionsFirst, optimize the urban layout and industrial structure, Second, increase the level and efficiency of utilization of the urban internal water cycle. Third, to strengthen the construction of urban water supply. Fourth, strengthen the protection of urban water supply. I believe that as long as there is a reasonable means and strict supervision legislation and a determined, the problem of water pollution can be effectively improve!

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