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1、參與成員：#2021-10-21water pollutionwater pollution-content2021-10-21Defination & Categories CausesHarm actuality & Case analysisSuggestionscontentwater pollution-defination2021-10-21defination Water pollution is the contamination (污染污染)of water bodies(eg. lakes, rivers, oceans, aquifers and groundwater)
2、. Water pollution occurs when pollutants（污染物） are directly or indirectly discharged（排放） into water bodies without adequate treatment to remove harmful compounds（復(fù)合物）.water pollution-categories2021-10-21Industrial waste water工業(yè)廢水Domestic sewage生活污水Agricultural waste water農(nóng)業(yè)廢水CategoriesIndustrial wate
3、r pollution All kinds of industry generate trade waste (工業(yè)廢水）: Iron and steel industry Food industry Complex organic chemicals industry Nuclear industry Pollutants: organics, oil, metal, acid Waste water from bathing, dishes, toilets. No toxic substance, abundant in nutrients with nitrogen (N，氮）and
4、phosphorus (P，磷） Eutrophication （水體富營養(yǎng)化） Trash or garbage (eg. paper, plastic, or food waste) discarded by people on the ground, along with accidental or intentional dumping of rubbish, that are washed by rainfall into storm drains and eventually discharged into surface waters .Domestic sewage pollu
5、tionagriculture water pollution Excessive fertilizer use may lead to eutrophication（水體富營養(yǎng)化） in many aquatic habitats agricultural runoff from large, open expanses is major source of water pollution.water pollution2021-10-21industrial effluent （printing and dyeing印染，metallurgy冶金 )Main Causesdomestic
6、sewerage （ wash sewage洗滌污水）agriculture sewerage （nitrogen氮 phosphorus磷 potassium鉀）solid waste in the industrial production （工業(yè)生產(chǎn)中的固體廢棄物）Harm water pollution affects plants and organisms(有機(jī)物） living in these bodies of water. in almost all cases the effect is damaging not only to individual species an
7、d populations, but also to the natural biological communities(生物圈）. it is the leading worldwide cause of deaths and diseases. it accounts for the deaths of more than 14,000 people daily. an estimated of 580 people in India die of water pollution related illness every day.water pollution2021-10-21How
8、 much city water is polluted in the world?water pollution2021-10-21The answer is water pollution2021-10-21有1.7億人飲用被有機(jī)物污染的水15%有7億人在飲用大腸桿菌含量超標(biāo)的水55%3億城市居民正面臨水污染這一世界性問題3億Among these polluted waterAmong these polluted waterwater pollution-actuality2021-10-21 Actualitywater pollution-actuality2021-10-21ac
9、tuality water pollution-actuality2021-10-21 actualitypresent situation of China Around 90% the water in the cities of China is polluted. And as of 2007, half a billion Chinese had no access to safe drinking water. The head of Chinas national development agency in 2007 said 1/4th the length of Chinas
10、 seven main rivers were so poisoned the water harmed the skin.the examples of the water pollutionabout china ：1.白洋淀死魚事件2006年2月和3月份，素有“華北明珠”美譽(yù)的華北地區(qū)最大淡水湖泊白洋淀，相繼發(fā)生大面積死魚事件。調(diào)查結(jié)果顯示，水體污染較重，水中溶解氧過低，造成魚類窒息是此次死魚事件的主要原因。這次事件造成任丘市所屬9。6萬畝水域全部污染，水色發(fā)黑，有臭味，網(wǎng)箱中養(yǎng)殖魚類全部死亡，淀中漂浮著大量死亡的野生魚類，部分水草發(fā)黑枯死2.淮河水污染事件震驚中外1994年7月，淮河上
11、游因突降暴雨而采取開閘泄洪的方式，將積蓄于上游一個(gè)冬春的2億立方米水放下來。水經(jīng)之處河水泛濁，河面上泡沫密布，頓時(shí)魚蝦喪失。下游一些地方的居民飲用了雖經(jīng)自來水處理但未能達(dá)到飲用標(biāo)準(zhǔn)的河水后，出現(xiàn)惡心、腹瀉、嘔吐等癥狀。經(jīng)取樣檢驗(yàn)證實(shí)，上游來水水質(zhì)惡化，沿河各自來水廠被迫停止供水達(dá)54天之久，百萬淮河民眾飲水告急。 about world 19551972年，在日本富山縣神通川流域兩岸出現(xiàn)了一種怪病，患者中婦女比男士多，患上此病，則全身骨骼疼痛，不能行走，故取名為“痛痛病”。經(jīng)調(diào)查，這是一種鎘中毒事件，起因是附近的電鍍廠、蓄電池制造廠及熔接工廠或因采礦工業(yè)含鎘之廢水未經(jīng)適當(dāng)處理而徑行排水，污染了
12、神通川水體，兩岸居民利用河水灌溉農(nóng)田，使稻米和飲用水含鎘而中毒，1963年至1979年3月共有患者130人，其中死亡81人。 1986年位于萊茵河上游的瑞士一座叫做桑多茲的化工廠倉庫失火，有10噸殺蟲劑和含有多種有毒化學(xué)物質(zhì)的污水流入萊茵河，其影響達(dá)500多公里。 2000年，羅馬尼亞邊境城鎮(zhèn)奧拉迪亞一座金礦泄漏出氰化物廢水，流到了南聯(lián)盟境內(nèi)。毒水流經(jīng)之處，所有生物全都在極短時(shí)間內(nèi)暴死。流經(jīng)羅馬尼亞、匈牙利和南聯(lián)盟的歐洲大河之蒂薩河及其支流內(nèi)80的魚類完全滅絕，沿河地區(qū)進(jìn)入緊急狀態(tài)。這是自前蘇聯(lián)切爾諾貝利核電站事故以來歐洲最大環(huán)境災(zāi)難。Facing this serious water pol
13、lution, Facing this serious water pollution, what should we do ?what should we do ?water pollution-suggestion2021-10-21Suggestions # #For governmentFor government #F #For individualor individual #F #For businessor businessFor governmentFor government 1.The established of urban sewage treatment syste
14、m（城市污水處理系統(tǒng)建立） 2.Industrial restructuring（產(chǎn)業(yè)結(jié)構(gòu)調(diào)整） 3.The development of new water sources 4.To strength the planning and management of water resources 5.Controlling agricultural non-point source pollution (控制農(nóng)業(yè)面源污染)F For businessor business 1.to reduce water consumption(減少耗水量 ) 2.buy equipment of sewa
15、ge treatment(買污水處理設(shè)備 ) 3.dont discharge sewage into water(不要亂排污水 ) 4.water recycling system(水資源循環(huán)系統(tǒng))F For individualor individual 1.Dont use cleaner conclude. 2.Dont throw the garbage into the river or sea . 3.Tell the person around you to protest the water.water pollution-World water day2021-10-21W
16、orld Water dayWorld Water Day has been observed on 22 March since 1993 when the United Nations General Assembly declared 22 March as World Day for Water.water pollution-world water day2021-10-21Theme of World Water Day2014: Water and Energy 2013: Water Cooperation 2012: Water and Food Security:the w
17、orld is thirsty because we are hungry.2011: Water for cities:Responding to the urban challenge 2010: Clean Water for a Healthy WorldLets watch a video about protecting water from pollution.Wordlist pollutants 污染物 discharged 排放 compounds 復(fù)合物 Industrial waste water 工業(yè)廢水 Domestic sewage 生活污水 organisms 有機(jī)物 biological communities 生物圈 Multinationals 跨國公司 nitrogen 氮 phosphorus 磷 potassium 鉀 imbibing 吸收water pollution2021-10-21thank you
waterpollution水污染
