保护海洋标语

保护海洋学生作文 篇1

The earth scale change of climate has brought a new kind of natural disaster and the developed and complicated city system is holding a latent risk of expanding the damage artificially. Also people has been spoiling the health since the immense quantity of chemicals have been produced and already used in pursuit of convenience and various toxic substances have been produced unintentionally and accumulated in environment. Therefore, We need some countermeasures from the viewpoint to prevent the city environment form disaster and to manage environmental risks. So we will develop and improve a new risk management system and a disaster prevention system to preserve and create the city environment where people feel easy and sound in their life.

保护海洋学生作文 篇2

Sea pollution

Between 75 and 80% of marine pollution is caused by land, particularly agriculture. 30% of this is from the atmosphere. Around 12% of the pollution is caused by maritime transport.

In South America, 98% of domestic wastewater ends up, untreated, in the sea. The countries along the Mediterranean Sea throw 50 million tons of waste into it every year and the Chinese throw 60 million tons of waste into the Yellow sea daily. Over half of the hydrocarbon discharge comes from continents, 5% comes from oil tanker accidents, 20% comes from waste and other ship-related accidents, 4% from sea exploitation and 11 to 15% is due to natural causes. Accidental pollution through hydrocarbon is significantly decreasing and only represents a small percentage of waste through degassing estimated at between 1.5 and 3 million tons of oil a year. In 2003, according to the WWF, between 0.7 and 1.3 million tons of oil were spread by degassing in the Mediterranean. According to the Ifremer (the French Institute for Exploitation of the Sea), coastal water pollution cost the world economy almost 12.8 billion dollars in 2006.

Marine pollution is the result of products being thrown into seas and oceans, mostly by mnkind: domestic waste (sewage and rubbish, pollutants in runoff water...), industrial waste (hydrocarbons, metals, synthetic chemical and organic substances, radionuclides...) and agricultural waste (fertilisers, pesticides...).

This includes water pollution and marine sediments, and more generally all damage to marine ecosystems caused by harmful substances being discharged into the sea, either by their nature or their quantity.

保护海洋学生作文 篇3

The ocean and we are a whole, first of all, the ocean itself has great handling of pollutants, dilution, diffusion, oxidation, reduction and degradation of purification ability. But the capacity is not unlimited, when toxic and harmful substances accepted by the local waters more than its own self-purification ability, it will cause pollution of the waters. In addition the ocean while contains many resources, but the regeneration of marine resources is the need of time, if the development of marine resources we uncontrolled and not pay attention to the protection of these resources, so there is always used in the light of day. So the protection of the marine is extremely important.

保护海洋学生作文 篇4

Sea Pollution

From the overall situation, wastewater emissions growth speed. Is expected in 2000 will reach 666 tons. City life sewage volume will continue to increase, in 2000 reached about 783 tons. The wastewater of low (estimated at 20% ~ 30%),most of untreated wastewater directly or indirectly discharged into the water body, the serious pollution of water resources. China's seven major river systems in nearly half of serious pollution, city section of river water qualitygenerally exceed the standard 86%. The polluted water, more serious is the Huaihe, Haihe, Liaohe, Songhua River, the downstream Yangtze River and the Pearl River Delta industries in developed region.

River city section of riverpollution, heavy on the river, north to south. In 1990, 94 river city section of evaluation, 65 are subject to different degrees of pollution, accounting for 69.1%, the main pollutants ammonia nitrogen, volatile phenol and oxygen consumption of organic matter. According to the survey, 700000000 peopledrinking water the Escherichi a coli exceed the standard, 164000000 people drink organic pollution of water, 35000000 people nitrate drinking water exceed the standard.

Huaihe is one of the most polluted rivers. Huaihe in the evaluation of the 2000kilometers of the river, 78.7% river does not meet the drinking water standard,the 79.7% section does not meet the standard of fishery water, 32% do not meet the standard of irrigation water. According to statistics, the national 3000 heavily polluting enterprises, enterprises of wastewater discharge of industrial pollution,Huaihe River Basin accounts for 160. A sewage units 1.55 182 towns within the basin, industrial wastewater emissions of 1610000000 cubic meters, 700000000 cubic meters of urban living water emissions. Huaihe sewage irrigation farmland,causing serious crop production; in 1989 the occasion of the Spring Festival, the sewage discharge upstream gate opening, the tap water in Huainan, Bengbu twocity is seriously polluted and not drinking, Huaihe basin, the public drinking watercrisis, people Voices of discontent.

Huaihe basin in many areas of cancer incidence rate than the normal area than 10 times to hundreds of times, some villages in 2/3 of hepatomegaly. At the same time, due to the pollution of the estuary, anadromous fish resources has been damaged, the sharp drop in output, part of the inner bay fisheries basic abandoned.

The widespread contamination of lakes, especially the heavy metal pollution and eutrophication problem is very conspicuous. For example, Dianchi is Kunming's largest source of drinking water, water supply for the water supply of 54%, due to the area around Kunming city and Dianchi a large number of industrial and domestic sewage discharge, resulting in Dianchi heavy metal pollution and eutrophication is very serious, as a source of drinking water for a number ofindex is unqualified, overgrown with algae, summer and autumn 84% water by algae coverage. In 1993 Third Waterworks in Kunming city have been forced to stop production for 43 days, a direct economic loss of about 40000000 yuan; themany rural well water also can not drink, resulting in about 300000 rural drinking water difficulty. Because of drinking contaminated water, poisoning incidents have occurred; Dianchi specialty whitebait substantially reduction of output,reduce fish species, rare species disappeared.

Bohai is China inland sea, has been seriously polluted. In the waters of Bohai,reducing the number of marine organisms, fish, shellfish, endangered, has become almost no life "the dead sea". The coastal seawater transparencydecreased significantly, reddish brown or black. Some aquatic products, are on the brink of extinction. On the contrary, fish, green oyster with oil odor (copperpollution), rotten spot kelp has appeared in large numbers. Due to consumption of contaminated seafood and sick of people more and more.

Water is limited, water is precious, water is not renewable. In the face of such apainful lesson, every man on the earth, to consciously establish water-saving awareness, tighten the taps, save every drop of water, reduce and prevent water pollution to human. Water pollution is the civilization of pollution, is the era ofpollution; water disappear is the national disappear, is human extinction.

保护海洋学生作文 篇5

Reduce Sea Pollution

Sea pollution is becoming an increasing problem for our planet and we have a responsibility to reduce sea pollution.

I need to describe the problem. Our ship currently dumps all its rubbish into the sea.It's easy to result in huge endanger. First of all, Non-organic substances such as plastic bags kill fish and whales. Because fish get trapped and whales cannot digest them. Secondly some rubbish is inherently toxic.

I can suggest some solutions. First and foremost we can create a better system of disposing of rubbish for instance. We ought to store rubbish. Next, we are supposed to make ships environmentally and friendly. A case in point is that we should stop providing plastic bags.

We must act now before it is too late!

保护海洋学生作文 篇6

Protect the Ocean

We live in the earth.The sea is about 70% of the earth surface.Theocean is the earth's water warehouse.The ocean provides food and many kinds ofresources for people.At the same time,people fetch more from the sea,but harmit too much,such as overfishing,throwing garbage in it,polluting water.We should protect the ocean.If people don't stop to damage marine circumstance,then we will be revenged inthe near future,then the human being will face a huge disaster.