1.Industrialproductionisanimportantsourceofairpollution.2.Theburnofgasolineandotherhydrocarbonfuelsinautomobiles,trucks,andjetairplanesproducesseveralprimarypollutants.3.Lifestovesandheatingboilers.Controlofairpollution 1.Reducetheemissionofallindustrialpollutants.2.Rationalplanofindustrialareasandnon-...
Envircnmental ldlutienThe current situation of environmentWith the development of industry and technology, the problem of the environment becomes a severe teset for our humans There is a tendency that the environmental pollution is becoming more and more serious. So it is time for humans to come...
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▲环境污染(environmentalpollution)是指由于人类活动使环境... 环境污染及防治PPT课件 关于环境污染及防治PPT 现在学习的是第1页,共61页 一环境污染 (一)、环境污染的概念 环境污染(environmentalpollution)大量的有害物质排入环境,环境质量下降,破坏生态平衡、影响人体健康,造成资源破坏和经济损失。公害(publicnuisance)...
1.Industrialproductionisanimportantsourceofairpollution.2.Theburnofgasolineandotherhydrocarbonfuelsinautomobiles,trucks,andjetairplanesproducesseveralprimarypollutants.3.Lifestovesandheatingboilers.Controlofairpollution 1.Reducetheemissionofallindustrialpollutants.2.Rationalplanofindustrialareasandnonindustrialzone....
andwastewaterisbeing pouredintorivers. pouredintorivers. andwastewaterisbeingpoure 77 境保Theenvironmentalprotection英演件 88 Furthermore,whereverwe Furthermore,whereverwe gotoday,wecanfind gotoday,wecanfind rubbisheverywhere. rubbisheverywhere. ...
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Controlofairpollution Majorwaterpollutionsources 1.Thedischargeofuntreatedindustrialwastewater; 2.Thedischargeofuntreateddomesticwastewater; 3.Extensiveuseoffertilizers,pesticides; 1.Reduceandeliminateemissionsofwastewater. 2.Strengthentheprotectionofdrinkingwatersource. ...
Thedestructionofenvironmenthasbroughtaboutnegativeeffectsandevenhasagreatthreattoourexistence. Wemustfacetheserioussituationandtakeactionstosolveourenvironmentalproblems. Forinstance,newlawsmustbepassedtocontrolindustrialpollution, peoplemustreceivetheeducationaboutthebadeffectofpollutionandsoon. Wehopethatallthesemeasures...
Lifeontheearthdependsonenergyfromthesun.About30percentofthesunlightthatbeamstowardEarthisdeflectedbytheouteratmosphereandscatteredbackintospace.Therestreachestheplanet'ssurfaceandisreflectedupwardagainasatypeofslowmovingenergycalledinfraredradiation.Theheatcausedbyinfraredradiationisabsorbedby"greenhousegases"suchaswater...