如何翻译这段文字,英译汉WaterPollutionThreatensNorthwestChinaNearly80percentofthepopulationinnorthwestChinaarelivinginanenvironmentwithseriousormoderatewaterpollution,accordingtoarecentreportbytheChineseAcademyof|小学英语问答-字典翻译问答网

如何翻译这段文字,英译汉WaterPollutionThreatensNorthwestChinaNearly80percentofthepopulationinnorthwestChinaarelivinginanenvironmentwithseriousormoderatewaterpollution,accordingtoarecentreportbytheChineseAcademyof

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如何翻译这段文字,英译汉

WaterPollutionThreatensNorthwestChina

Nearly80percentofthepopulationinnorthwestChinaarelivinginanenvironmentwithseriousormoderatewaterpollution,accordingtoarecentreportbytheChineseAcademyofEngineering.

Thereportcharacterizedwaterpollutioninthisregionintothreecategories:serious,moderateandclean.

Seriouslypollutedareasinclude:sectionsofthemainstreamsoftheYellowRiverandWeiheRiver,theShuleRivervalleyandYiliRivervalleywhere21majorcitiesarelocated.Waterintheseriversisnotusableevenforirrigationpurposes.TheWeiheRivervalleyhasbecomeoneofthemostseriouslypollutedareasinthecountry.Thepollutedsectionsoccupyonly13%ofthetotalareaofthenorthwestregion,buttheyareindustrialandminingcentersandhometo55.2%oftheregion’spopulation.MajorpollutantsintheseareasareCOD,BODandammoniaandnitrogen.InthemainstreamoftheYellowRiverinGansuandInnerMongolia,heavymetalshavealsobeenfound.

Moderatelypollutedareasare:14cities/districtsincludingUrumqi(Xinjiang),Baiyin(Gansu)andTongchuan(Shaanxi).ThewaterqualityintheseareasismeasuredasmeetingGradeIVstandards.Occupying27.2%oftheregion’stotalarea,thepollutedwatersaffect23.9%oftheregion’spopulation.Waterintheseareasmeetsrequirementsforirrigationbutnotqualifiedfordrinking.Ifunchecked,theywilljointheseriouslypollutedareassoon.

Notyetpollutedareascover27cities.Althoughtheyaccountfor59.8%oftheregion’stotalarea,mostofthesecitiesarelocatedinthedesert,coveringonly20.9%oftheregion’stotalpopulation.

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　　贤兄翻译出来了. 　　中国西北的水污染威胁　　根据中国工程院最近的报导,在中国西北部,近百分之八十的人口生活在水污染严重的环境中. 　　该报告将这一地区水污染分为三大类：严重污染,中度污染和清洁. 　　严重污染的地区包括：黄河和渭河主流域,疏勒河流域和伊犁河谷的21个主要城市地区.这些河流的水质受到严重污染,已不能用于灌溉.就整个中国而言,渭河流域已成为全国最严重的受污染地区.虽然污染区域仅占西北地区总面积的13％,但其工矿业产生的污染却使得该地区55.2％的人口饱受污染之苦.这些地区的化学需氧量、生化需氧量和氨氮含量等状况极差,在甘肃、内蒙古等境内的黄河流域还发现有严重的重金属污染. 　　中度污染的地区分别是：其中包括乌鲁木齐（新疆）,白银（甘肃）和铜川（陕西）等14个城市.这些地区的水质测量出仅相当于第四级水质标准.占全区总面积的27.2％,影响该占区域23.9％的人口.该水质基本可用于灌溉,但不能饮用.如果不加以遏制,便会加入严重污染区域行列. 　　尚未受到污染的地区包括27个城市.虽然占全区总面积的59.8％,但大多城市都坐落在沙漠中,仅仅涵盖该地区总人口的20.9％.