Water_Pollution水污染英文PPT

《Water_Pollution水污染英文PPT》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、WaterPollutionMadeby:TheSunWaterPollutionintroductionWaterpollutionisthecontaminationofwaterbodies(e.g.lakes,rivers,oceans,aquifersandgroundwater).Waterpollutionoccurswhenpollutantsaredischargeddirectlyorindirectlyintowaterbodieswithoutadequatetreatmenttoremoveharm

2、fulcompounds.Waterpollutionisamajorglobalproblemwhichrequiresongoingevaluationandrevisionofwaterresourcepolicyatalllevels(internationaldowntoindividualaquifersandwells).Ithasbeensuggestedthatitistheleadingworldwidecauseofdeathsanddiseases,andthatitaccountsforthedea

3、thsofmorethan14,000peopledaily.AllaboutWaterpollution2.influence3.solution1.CauseNowadays,waterpollutionisdeteriorating.Rivers,lakesandevenoceansallovertheworldarebecomingpollutedbygarbageanddangerouschemicals.OilandotherChemicalscankillfishandmakewaterunsafefordri

4、nking.Beforewethinkaboutwhatshouldwedotosolvethisproblem,weshouldfirstknowwhatcausetheproblem.Cause1.NaturalpollutionDuetothedissolutionofgeological,atmosphericprecipitationleaching,erosionontheground,mixthevariouspollutantsintothewater因地质的溶解作用，降水对大气的淋洗、对地面的冲刷，挟带各种

5、污染物流入水体而形成2.Man-madepollutionindustrialwastewater(工业废水)Dailylifesewage(生活污水)Pesticideandfertilizerpollution（农业化肥污染）Thesedodamagetothequalityofwater.BACKWaterPollutiondistributionWaterpollutionisoneofthemostseriousproblemsthatmankindfacestoday.1.Forbusinessorindustr

6、y,itaffectsproducts’quality,increasedcorrosionofproducts,andsoon.2.Forindividual,itdoesdamagetothehuman’shealthy.Therearemanyinfluencethatwecan’tdescribethembywords.SoIwillshowyousomepictures.InfluenceDischargingsewageintowaterWaterhyacinth水葫芦Redtidereasonsofformre

7、dtideWatereutrophicationMeteorologicalandhydrologicalandphysicalandchemicalpropertiesoftheseaDamagesofredtideDamageHarmtohuman'shealthDestructionofMarinefisheryresourcesandaquaticproductsHarmtohumanhealthThegarbageinwaterBackWhatcanWeDo?WaterPollutionStopPollutionE

8、nvironmentalProtectionWaterConservationEveryonewantstoreducepollution.Butthepollutionproblemisascomplicatedasitisserious.Whatshouldwedotosolvethi