海洋污染的英文作文
海洋污染的英文作文
导语：我们要做保护大运河的参与者。保护运河周边环境是历史赋予我们的.神圣使命。以下是小编为大家分享的海洋污染的英文作文，欢迎借鉴！洋槐蜜
marine pollution海洋污染qq昵称女
This essay concentrates on five major caus of marine pollution, which are the discharge of domestic and industrial wastewater, waste oil, plastics, heavy metals and aquaculture. The propod solution to this problem will be prevention and pollution treatment, and eventually, the former one proves to be more effective. Firstly, this essay will prent and explain the major caus and effects of marine pollution. Then, different solutions will be suggested in the cond part. The final part will evaluate the effectiveness of the solutions and show that prevention may be more successful.
来之不易的意思The first main cau of the marine pollution is the discharge of domestic and industrial wa
stewater. Since both the cities and industrial estates are crowded with lots of people, there is more wage flowing into rivers and then into oceans. Therefore, the quality of awater gets wor and oxygen content decreas rapidly. Without oxygen, fish living under the a can not survive. Becau of the nutrients in the wage, aweed may grow well firstly and eventually die when running out of food. So the wastewater will finally destroy ecological balance for the reason of the discharge of domestic and industrial wastewater.
Then waste oil is another significant cau of marine pollution. After leaking from ships, or spilling in accidents, or flowing out of factories, waste oil enters oceans. The total amount of waste oil is surprisingly great. Then the waste oil floats on the water and drifts with winds for it is lighter than water. Several elements in the waste oil are harmful to the living of creatures, especially to the living of abirds. The oil sticks to the wings of abirds so they can not fly and die on the a one after another. It is also poisonous for fish and a plants. So it is obvious that waste oil may let
many creatures to run into danger of dying out.
The third major cau of marine pollution is plastics. Plastics are the main solid pollutants and people treat the oceans like a giant dustbin to pour plastics in. Kusui and Noda’s rearch showed that in the ashore of Japan, if there are 100 waste items thrown by people, 73 items are plastics, and the plastic litter equals 53.8% of the total litter of wastes. In the neighbouring Russia, the statistics are 55 items and 23.4% respectively (Islam, 2004).[1] The plastics can block the propeller of ships, and may cau enormous accident. Plastics floating in the oceans can also cau lack of oxygen and have the similar effects, preventing respiration of creatures, as the wage does. When the plastics break down in the oceans, they can be toxic to marine plants and animals. Therefore, plastics are not only harmful to ships sailing in the oceans and mankind, but also to other creatures living in the as.
Heavy metals are the fourth main cau of the environment problem. There are various sorts of heavy metals contained in water from factories. They go into the oceans through rivers or water run-off. Then they are eaten by fish and begin to accumulate in their bodies. When the fish are caught by us human beings, heavy metals enter our bodies
奥运会时间and make us ill. Heavy metals can cau rious dias.初学钢琴的8个指法图
Aquaculture is the final major cau to marine pollution. People usually cultivate fish and other marine life for food. But the foods which they u to feed marine life conquently harm the marine environment where there are people live around. It is becau the foods are organic matter and will become rotten in the oceans gradually. The quality of awater is reduced by this kind of substance and the marine life living
in this ocean area and adjacent ocean area will die. Thus, aquaculture will cau harm to the quality of awater of large areas of oceans.
There are two main solutions to the marine pollution problem. Prevention comes out first. It is suggested that governments should perfect new intendance system of protecting the quality of water that we should make water completely clean before it is discharged to the oceans. It is also necessary to establish laws to keep the conduct of people and enterpris, and develop cooperation among different countries. The cond main solution is pollution treatment, which contains tting up treatment plants and planting tre
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es. In Kocasoy, Mutlu, and Alag?z’s study (2008), [2] the solutions can reduce the discharge of domestic and industrial wastewater as well as improve the quality of awater. Since trees are able to make soil cure and hold back water from running off, they can be planted in the crowded cities and factories which cau marine pollution. Treatment plants are ud to clean the awater.
Considering the advantages and disadvantages of the two solutions, prevention of marine pollution will be more effective to solve the problem. In one hand, prevention is the most esntial theme of environmental management. The monitoring of water quality can be put into practice in advance to prevent damage to ocean environment. To improve attitudes of people and enterpris towards pollution will obviously be helpful and it is feasible to bringing the limits to maintain the marine environment in good condition. In the other hand, always firstly polluting the marine environment and then taking counter-measures as treatment is irresponsible behaviour. Although the measures can reduce pollution to some extent, the disastrous
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conquences may have already existed, and marine pollution will continually come into being and never end. Conquently, prevention is much better in solving the pollution problem.
