1. 海洋污染百分比
全球水资源，咸水占97.5％，淡水占2.5％，在这2.5％中，又有87％是人类难以利用的两极冰盖、冰川、冰雪。人类可以利用的淡水只占总水量的0.26％，而这些淡水大部分是地下水，实际上，人类可以从江河湖泊取用的淡水只占总水量的0.014％。
地球表面、岩石圈内、大气层中和生物体内所有各种形态的水，包括海洋水、冰川水、湖泊水、沼泽水、河流水、地下水、土壤水、大气水和生物水，在全球形成了一个完整的水系统，这就是水圈。
2. 海洋污染的数据统计
就目前的开采技术而言，基本上无论是哪种方法，都是促使可燃冰中天然气与水的分离，要促使其分离，必然要改变其温度及压力环境，这样就可能会产生一系列不可预知的环境问题，如温室效应的加剧、海洋生态的变化及引起地质灾害的可能。
可燃冰的成分主要是甲烷，甲烷是一种强温室气体，对大气辐射平衡的影响仅次于CO2。
目前探明全球可燃冰储量的甲烷是大气圈中甲烷的5000倍，在开采的过程中，即使如此巨大的甲烷总量哪怕是0.5%进入大气层，对全球变暖的影响也是难以估量的，如果开采中稍有不慎，则必然会加剧温室效应。在海洋中开采可燃冰带来的环境问题更多，一方面甲烷如果直接进入海水中，则会很快发生微生物的氧化反应，从而会改变海水的化学属性，如果大量进入，其氧化过程中会消耗海水中大量的氧气，使得海洋缺氧，这样势必会加速海洋生物的死亡；
另一方面大量直接进入海洋的甲烷还可能会加速海洋气化及海啸，导致海水加速流动及气压卷吸，会严重危害海面船只及作业平台的安全，甚至强对流的海水会直入空中，影响航空及陆地建筑的安全。
在开采可燃冰的过程中，会分解大量的水，这些水会稀释岩层空间，使得地层结构稳定性变差，容易引发地质灾害。
在海洋环境中，无论是减压分解还是激热分解，都会导致海底陆坡区的稳定性下降，严重则会发生海底坍塌，如毁坏海底输电或通信电缆和海洋石油钻井平台等设施。
就目前的开采方法来看，无论是哪种方法都不能单独实施，必须是几种方法的结合，如果使用二氧化碳置换法、化学试剂减压法与其他方法的结合实施，则势必会产生新的问题，这些化学试剂及二氧化碳注入到地下后，会严重污染地下水源。
3. 海洋污染具体数据
你指的有点宽泛，主要指海底地貌：
如同陆地上一样，海底世界有高山，有平原，还有深沟峡谷。这个世界并不象人们所想像的或是象表面看起来那样平缓和宁静，相反却是地球上最活跃最动荡不安的地带。地震火山活动频繁，形成高山峻岭，只不过一切都掩盖在海水之下进行而已。
世界各大洋的洋底形态虽然各不相同，但基本上都是由大陆架，大陆坡，岛弧海沟，大洋盆地，洋中脊（海底山脉）几个部分组成。
我们平时所看到的海岸线并不是大陆与海洋的分界线，实际上，在海面以下，大陆仍以极为缓和的坡度延伸至大约200米深的海底。这一部分就是大陆架——被海水淹没的滨海平原，这里成为海洋生物的乐园，可以发现许许多多的海洋动植物在此处安居乐业，繁衍生息。
大陆架以下，是大陆架向大洋底过渡的斜坡，坡度陡然增大，一般为3-4度，有的甚至超过10度，水深急剧增加，一般为200-2500米。这就是比较狭窄的大陆坡，它的底部才是大陆与海洋的真正的分界线。
超过大陆坡，就是深邃的海沟或岛弧一海沟系。在此处，大洋板块俯冲到大陆板块以下，交错地带形成了“V”形的海沟，是海洋中最深的地方，与相邻的岛弧构成了地球上最大的高度差。例如秘鲁-智利海沟深8000米，其背靠的安底斯山海拔6500米以上，它们之间的交差为14500米，若不是被海水覆盖，这将是最雄伟壮观的景象！
这一带由于地处两个板块的边缘，故地震、火山活动频繁发生，跨过海沟再向海洋深处，就到了广阔无垠的大洋盆地。其深度在2500-6000米之间，大部分是深海平原，面积占海底总面积的77%，辽阔平坦，但景色无奇。在平原的周围，分布着绵亘千里的海岭，陡峭的海山峰和光滑如刀削的平顶山，其中还有深海谷，断裂带和海槽等，海岭和海山皆因火山组成，海山甚至可以露出海面成为岛屿，如太平洋的夏威夷群岛。
再深入洋底，就来到了洋中脊，与一般海岭不同，他们是海底扩张的中心。而且洋中脊是一个世界性体系，横贯各大洋，从北冰洋开始，穿过大西洋，经印度洋，进入太平洋，逶迤连绵约七万余公里，就好像是大洋的脊梁，任何一条陆地山脉都不能与之相媲美。
各大洋洋中脊的位置均不相同，大西洋中脊贯穿大洋中部，与两岸大致平行（中脊各称由来），中轴为中央裂谷分开，两侧内壁陡峻，两峰嶙峋，蔚为奇观；印度洋中脊犹如“入”字分布在大洋中部；太平洋中脊位于偏东的位置上。三大洋中脊在南部相互连接，而北端却分别伸进大陆。
这就是海底世界
4. 海洋污染2021
第一条 为了保护和改善环境，防治水污染，保护水生态，保障饮用水安全，维护公众健康，推进生态文明建设，促进经济社会可持续发展，制定本法。
第二条 本法适用于中华人民共和国领域内的江河、湖泊、运河、渠道、水库等地表水体以及地下水体的污染防治。海洋污染防治适用《中华人民共和国海洋环境保护法》。
第三条 水污染防治应当坚持预防为主、防治结合、综合治理的原则，优先保护饮用水水源，严格控制工业污染、城镇生活污染，防治农业面源污染，积极推进生态治理工程建设，预防、控制和减少水环境污染和生态破坏。
第四条 县级以上人民政府应当将水环境保护工作纳入国民经济和社会发展规划。地方各级人民政府对本行政区域的水环境质量负责，应当及时采取措施防治水污染。
第五条 省、市、县、乡建立河长制，分级分段组织领导本行政区域内江河、湖泊的水资源保护、水域岸线管理、水污染防治、水环境治理等工作。
第六条 国家实行水环境保护目标责任制和考核评价制度，将水环境保护目标完成情况作为对地方人民政府及其负责人考核评价的内容。
5. 海洋污染率
海洋污染物依其海洋污染来源、性质和毒性，可分为以下几类：
①石油及其产品(见海洋石油污染)。
②金属和酸、碱。包括铬、锰、铁、铜、锌、银、镉 、锑 、汞 、铅等金属，磷、砷等非金属，以及酸和碱等。它们直接危害海洋生物的生存和影响其利用价值。
③农药。主要由径流带入海洋。对海洋生物有危害。
④放射性物质。主要来自核爆炸、核工业或核舰艇的排污。
⑤热污染和固体废物。主要包括工业冷却水和工程残土、垃圾及疏浚泥等。前者入海后能提高局部海区的水温，使溶解氧的含量降低 ，影响生物的新陈代谢，甚至使生物群落发生改变;后者可破坏海滨环境和海洋生物的栖息环境。
⑥有机废液和生活污水。由径流带入海洋。极严重的可形成赤潮。
6. 海洋污染程度是多少
海洋污染的危害：渔场外迁、鱼群死亡、赤潮泛滥、海生资源丧失。海洋污染会导致海洋生物的体内积累毒素，如果这些体内带有毒素的海洋生物被人类误食到身体内，毒素同样也伴随食物进入身体后，将会危及到人类的身体健康，严重的会威胁到生命。
海洋污染通常是指人类改变了海洋原来的状态，使海洋生态系统遭到破坏。有害物质进入海洋环境而造成的污染，会损害生物资源，危害人类健康，妨碍捕鱼和人类在海上的其他活动，损坏海水质量和环境质量等。
海洋面积辽阔，储水量巨大，因而长期以来是地球上最稳定的生态系统。由陆地流入海洋的各种物质被海洋接纳，而海洋本身却没有发生显著的变化。然而近几十年，随着世界工业的发展，海洋的污染也日趋严重，使局部海域环境发生了很大变化，并有继续扩展的趋势。
防止海洋污染的措施主要有：海洋开发与环境保护协调发展，立足于对污染源的治理；对海洋环境深入开展科学研究；健全环境保护法制，加强监测监视和管理；建立海上消除污染的组织；宣传教育；加强国际合作，共同保护海洋环境。
7. 海洋污染比例
你好，给你提供几条概括性的影响危害，具体的自己发挥一下。
1.污染影响：工业废水（如海洋石油开发、炼油厂、排海工程、海岸工程、远洋运输危险货等）
2.生态影响 ：对海洋生态影响，影响生物量、生物多样性、影响珍稀濒危海洋生物的
栖息地、食源地、迁徙、繁殖）,有可能引发赤潮。
总之，环境污染后作为地表水和地下水最终受纳水体的海洋，因其环境容量局部海域有限（尤其是海湾或者封闭海域），在大量污染物质进入海洋环境后不能够很快的进行稀释净化，污染物累积进而出现各种危害效应。
8. 海洋污染指数
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!
海洋污染英语作文二：Reduce Sea Pollution
Several problems are caused by the non-organic substance. We ought not to pour wastes into the ocean, because it not only pollutes the ocean, but also lead to a series of harmful consequence. First and foremost, the non-organnic things, for instance, plastic bags, may kill fish and whales. Second, fishes can't digest them. Finally, some of the rubbish is inherently toxic, they will posion marine life.
We must take actions to protect our whale from dying. One thing we should do is creating a better system of disposing of rubbish. Another effective solution is making ships environmentally friendly. Sypermarkets shall stop the giving of plastic bags.
As a captain of the ship, you should spare no efforts to think more helpful ideas and stop dumping rubbish from now on. We all need to raise awareness of these problems. It now becomes necessary that we must act now, before it is too late!
海洋污染英语作文三：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.
海洋污染英语作文四：Sea Pollution
Marine environment is one in water, seawater tolerance hydrolyzate and suspended solids, seabed sediment and marine organisms, including complex systems. Ocean rich biological resources, mineral resources, chemical resources and power resources is an indispensable resource treasure house of human beings, with human survival and development of the relationship very close.
The main objective of the current marine conservation is to protect the living marine resources, so as not to failure, in order for human sustainable use. In particular, give priority to protect those valuable and critically endangered marine life. According to the UN for investigation, due to overfishing, accidental capture and killing of non-target to allow hunting of marine, coastal shoreline construction, mangrove deforestation, widespread marine pollution, at least the world's 25 most valuable fishery resources depleted, whales, sea turtles, manatees and many other marine animals face extinction risk. Is expected that with the expansion of the scale of ocean development,Marine living resources are likely to cause more damage.
The task of the first marine protected right to stop over-exploitation of living marine resources and secondly to protect the habitat of marine life or habitat, in particular, their migration, spawning, foraging, avoiding predators coast, tidal flats, estuaries, coral reefs, it is necessary to prevent the heavy metals, pesticides, oil, organic and easy to produce nutrients such as eutrophication of marine pollution. Preservation of the marine living resources of the natural regeneration capacity and water purification capacity, preservation of the marine ecological balance, to ensure sustainable human development and utilization of the oceans.
海洋污染英语作文五：Polluting the seas
The seas and oceans receive the brunt of human waste, whether it is by deliberate dumping or by natural run-off from the land.
In fact over 80% of all marine pollution comes from land-based activities and many pollutants are deposited in estuaries and coastal waters. Here the pollutants enter marine food chains, building up their concentrations until they reach toxic levels. It often takes human casualties to alert us to pollution and such was the case in Minimata Bay in Japan when many people died as a result of a pollutant building up in food chains. A factory was discharging waste containing methyl mercury in low concentrations into the sea and as this pollutant passed through food chains it became more concentrated in the tissues of marine organisms until it reached toxic levels.
As a consequence 649 people died from eating fish and shellfish contaminated with mercury and 3500 people suffered from mercury poisoning.
海洋污染英语作文六：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 in