环保知识宣传ppt模板之垃圾回收与环境保护pptonplas

PLASTICONENVIRONMENT!!!INTRODUCTIONPlasticisthegeneralcommontermforawiderangeofsyntheticorsemisyntheticorganicsolidmaterialssuitableforthemanufactureofindustrialproducts.Plasticsaretypicallypolymersofhighmolecularweight,andmaycontainothersubstancestoimproveperformanceand/orreducecosts.Plasticisoneofthefewnewchemicalmaterialswhichposeenvironmentalproblem.Polyethylene,polyvinylchloride,polystyreneislargelyusedinthemanufactureofplastics.TYPESOFPLASTICPRODUCTSPLASTICBAGSPLASTICCOATINGSPLASTICFURNITUREPLASTICSHEETSPLASTICFITTINGSPLASTICTANKSPLASTICTOYSPLASTICBUCKETSPLASTICSANITARYWAREPLASTICSTATIONERYPLASTIC’SADVERSEEFFECTSONOURENVIRONMENT1}Plasticpollutebeaches&oceansGarbagehasbeendiscardedintotheoceansforaslongashumanshavesailedthesevenseasorlivedonseashoresornearwaterwaysflowingintothesea.Sincethe1940s,plasticusehasincreaseddramatically,resultinginahugequantityofnearlyindestructible,lightweightmaterialfloatingintheoceansandeventuallydepositedonbeachesworldwide2}PlasticbagslitterthelandscapeOncetheyareused,mostplasticbagsgointolandfill,orrubbishtips.Eachyearmoreandmoreplasticbagsareendinguplitteringtheenvironment.Oncetheybecomelitter,plasticbagsfindtheirwayintoourwaterways,parks,beaches,andstreets.And,iftheyareburned,theyinfusetheairwithtoxicfumes.3}PlasticbagskillanimalsAbout100,000animalssuchasdolphins,turtleswhales,penguinsarekilledeveryyearduetoplasticbags.Manyanimalsingestplasticbags,mistakingthemforfood,andthereforedie.Andworse,theingestedplasticbagremainsintactevenafterthedeathanddecompositionoftheanimal.Thus,itliesaroundinthelandscapewhereanothervictimmayingestit.4}Plasticbagsarenon-biodegradableAndoneoftheworstenvironmentaleffectsofplasticbagsisthattheyarenon-biodegradable.Thedecompositionofplasticbagstakesabout1000years.PLASTIC’SEFFECTONHUMANLIFEPlasticplaysthevillainrightfromthestageofitsproduction.Themajorchemicalsthatgointothemakingofplasticarehighlytoxicandposeseriousthreattolivingbeingsofallspeciesonearth.Someoftheconstituentsofplasticsuchasbenzeneareknowntocausecancer.Plasticresinsthemselvesareflammableandhavecontributedconsiderablytoseveralaccidentsworldwide.Onceplasticisproduced,theharmisdoneonceandforall.Plasticdefiesanykindofattemptatdisposal–beitthroughrecycling,burning,orlandfilling.Whenyourecycleahazard,youcreateahazard.Recyclingofplasticisassociatedwithskinandrespiratoryproblems,resultingfromexposuretoandinhalationoftoxicfumes,especiallyhydrocarbonsandresiduesreleasedduringtheprocess.RockBandhascappy,cheapplastic...570x867-45k-jpgNISHANTDOGRAROHITKHANNAKAVALDEEPSINGHMANRAJSANDHUMEGHAGAIKWADSNEHASINGHTHANKYOU!!!TOSPREADSUCHASOCIALMESSAGE!!HOPETOSEEABETTERFUTURE!!