1. 海洋核污染檢測(cè)海洋可以稀釋核輻射,。 海洋對(duì)核輻射水沒有凈化能力,只能隨著洋流稀釋,。凈化是指將其中的污染物以過濾,、轉(zhuǎn)化或分解的方式去除掉。但核輻射是無法去除掉的,,只能讓放射性元素自己衰變?yōu)榉€(wěn)定的非放射性元素,,所以無法凈化。其實(shí)沒有必要把放射性完全去除掉,,只要放射性強(qiáng)度在安全限度以下就可以了,,海水依靠稀釋就能做到。因?yàn)閲?yán)格地說,,放射性廣泛存在于自然界,,無處躲避,,也沒有必要躲避。只要其強(qiáng)度在安全值以下,,對(duì)健康就沒有影響,。 2. 海產(chǎn)品核污染檢測(cè)不能 核污染對(duì)魚類的影響主要是通過基因突變引起的。惡性突變會(huì)隨著魚類的繁殖一代代傳下去,,而人類又非常喜歡吃海鮮,,尤其是來自海洋的野生海鮮,那么這種由核輻射導(dǎo)致的變異基因就會(huì)進(jìn)入人體內(nèi),,間接來影響人體的DNA,,有可能也會(huì)讓人類的基因發(fā)生一些不好的變異。 3. 海里核試驗(yàn)污染地下核試驗(yàn)會(huì)產(chǎn)生放射性核素,,人們非常關(guān)注它造成的環(huán)境危害,。 這種危害很大程度上依賴于物理和化學(xué)機(jī)理,這些機(jī)理控制著放射性核素如何進(jìn)入地下水并將它傳播給生物圈內(nèi)的各種物種,。 在內(nèi)華達(dá)州南部和美國其它的試驗(yàn)基地,,相關(guān)的環(huán)境包括地下水中潛在的污染、它們對(duì)環(huán)境或農(nóng)業(yè)所產(chǎn)生的影響,,以及它們對(duì)那些可能會(huì)發(fā)生間接生態(tài)影響的地方的地表水源的極限排泄的環(huán)境,。 在南太平洋的阿留申群島的海洋試驗(yàn)區(qū),人們還對(duì)地下水中滲漏的放射性核素進(jìn)入海水以及由此引起的對(duì)漁民和其它生物所產(chǎn)生的影響表示關(guān)注,。 地下核試驗(yàn)也會(huì)污染土地. 4. 海底核試驗(yàn)污染被核輻射的海水含有鈷,、氚等有害元素,,這些元素對(duì)海洋生物,、動(dòng)物的生存環(huán)境會(huì)有直接的嚴(yán)重的影響。由于海水是流動(dòng)的,,洋流將被輻射的海水帶到海洋各地,,所到之處相關(guān)聯(lián)區(qū)域人類的身體健康將受到極大的的影響,故將被幅射的海水倒入大海,,違反國際有關(guān)法律法規(guī)的規(guī)定,,也會(huì)引起全世界、全人類極大的關(guān)注,。 5. 海洋核試驗(yàn)污染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! 海洋污染英語作文二: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! 海洋污染英語作文三: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. 海洋污染英語作文四: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. 海洋污染英語作文五: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. 海洋污染英語作文六: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 6. 海洋核污染處理應(yīng)該會(huì)被海水稀釋,,因?yàn)楹K写嬖诖罅康呐鹚幔梢灾泻鸵恍┖溯椛湮?,還含有很多稀有金屬具有抗核原素的功能,,就如同一滴鋼筆水在盆里會(huì)被盆水稀釋,但源頭要控制住,,不然海里的魚吃了會(huì)對(duì)魚的健康有危害,,也可能會(huì)導(dǎo)致魚的基因變異成異型生物,,也未可知。 7. 海洋核污染檢測(cè)技術(shù)及對(duì)海洋影響海洋核污染對(duì)城市的影響為海里打上來的魚蝦不能食用,。海水不能養(yǎng)殖,。海水不能淡化飲用。 8. 海洋生物核污染海參是海產(chǎn)品,,他當(dāng)然受到黑輻射的影響還不是影響,,包括海里面的任何海產(chǎn)品和水產(chǎn)品包括各種魚類以及海參,海帶等水產(chǎn)品都要受到核輻射的影響因此,,只要是海里面的產(chǎn)品,,海水受到輻射影響了,他都受影響我們強(qiáng)烈反對(duì)任何國家向海洋群島海廢料維護(hù)世界人民的身體健康
|