空气污染 水污染 大气污染的介绍(英文)ppt课件

1、.,OurCountrysEnvironmentalProblems,.,Word,Ecologicalenvironment生态环境Desertification荒漠化Salinization盐碱化Offscum废渣Mining采矿业Biologicalchain生物链Biodiversity生物多样性Wastewater污水WorldHealthOrganization世界卫生组织undergroundwater地下水,drinkingwater饮用水Waterbody水体Contaminate污染Rhine莱茵河Greenhouseeffect温室效应Groundlevelozone地面

2、臭氧particulatematter微粒物质biologicalmaterials生物材料respiratorydisease呼吸疾病stationarysources固定污染源,.,Focal焦点的Quota定额Coordinate使协调Emission发射Afforestation造林Adsorption吸附Photosynthesis光合作用Phosphorus磷Filtration过滤Biodegradable能被细菌分解的Trash垃圾Consumption消耗Rectification改正,globalwarming全球变暖gaseoussystem气态系统ozonedeplet

3、ion臭氧枯竭Ecosystem生态系统Pollutants污染物photochemicalsmog光化雾Countermeasure措施Propaganda宣传Ascendant优势Detergent洗涤剂Evaporative蒸发的,word,.,WastePollution,.,.,WATERPOLLUTION,.,Thefourbasicnaturalresourcesarewater,air,landandenergy.Weneedwaterformultipleusesandacertainqualityisrequired.Itsuseleadstothegenerationof

4、wastewaterthatcancauseanimpactontheenvironment.水，空气，土地和能源是四个基本的自然资源。水的用途多种多样，而且要求其达到一定的标准。但是，由于人类使用而产生的污水造成了对环境的影响。,.,Waterpollutionoccurswhenabodyofwaterisadverselyaffectedduetotheadditionoflargeamountsofmaterialstothewater.水污染是水体中添加大量其他物质而造成的负面影响,.,Drought,Pollution,.,Approximately300millionnation

5、widehavenoaccesstocleanwater.Furthermore,over700millionChinesedrinkfetidwaterbelowWorldHealthOrganizationstandards.Almost90%ofundergroundwaterincitiesisaffectedbypollutionand80%ofChinasriversfailtomeetstandardsforfishing.Almostallofthenationsriversareconsideredpollutedtosomedegreeandhalfofthepopulat

6、ionlacksaccesstocleandrinkingwater.Ninetypercentofurbanwaterbodiesareseverelypolluted.全国约有3亿人使用不上干净的水，此外，有超过7亿中国人饮用的水没能达到世界卫生组织的标准，几乎90%的城市地下水受到污染，80%的中国河流不符合捕鱼标准，某种程度上说，几乎所有的河流都受到某种程度的污染，一半的人口缺少干净的饮用水，90%的城市水体受到严重污染。,.,ShuiYuBingevents水俣病事件（1953-1956）Japanbonepaindiseaseevents骨痛病事件（）1955-1963）Japan

7、poisonoussubstancescontaminatetheRhineevents剧毒物质污染莱茵河事件1986Switzerland,Germany,France,Thefamouswaterpollutionincidents,.,AirPollution,.,Pollutants,Pollutantscanbeclassifiedaseitherprimaryorsecondary.Primarypollutants:emittedfromaprocess.suchas:ashfromavolcaniceruption;thecarbonmonoxidegasfromamotorv

8、ehicleexhaust;sulfurdioxidereleasedfromfactories.,.,Secondarypollutants:notemitteddirectly,theyareproducedwhenprimarypollutantsreactorinteract.Animportantexampleofasecondarypollutantsisgroundlevelozone,itisoneofthemanysecondarypollutantsthatmakeupphotochemicalsmog.,.,Majorpollutantsproducedbyhumanac

9、tivityinclude:,sulfurdioxide:fromburningofcoalandoil.nitrogendioxide:fromhightemperaturecombustion.Carbonmonoxide:incompletecombustionoffuelsuchasnaturalgas,coalorwood.Vehicularexhaustisamajorsource.Carbondioxide:agreenhousegasemittedfromcombustion.Chlorofluorocarbons含氟氯烃:harmfultotheozonelayeremitt

10、edfromproductsbannedfromuse.Particulatematter:producedbygaseousprimarypollutantsandcompoundsinphotochemicalsmog.,.,Indoorairpollution,Airpollutioncontainedindoorairpollution.chemicalsources,physicalsourcesandBiologicalsources.Decorativematerialpollution:formaldehyde甲醛ammonia氨气,.,Countermeasures,.,Ga

11、rbagePollution,Changethewayofproduction,Stepuppublicityeffortstopromotegreenconsumption,Toencouragegarbagecollectiontothedevelopmentofindustryandlegalization,Carryoutthechargingpolicy,cleanandgreen,toxicandhazardoussubstances,wasterecycling,Mediaandpublicize,toreducewasteoutput,greencertifiedproduct

12、s,.,WaterPollution,Protectthewatersourcearea,Increasetheurbansewageandindustrialwastewatertreatmentefforts,Strengthencitizensawarenessofprotectingtheenvironment,Realizetherecyclingofthewastewateruse,Reducewastewaterandpollutants,Developregionalwaterpollutionpreventionandcontrolsystem,Comprehensiveconsiderationofthewaterresourcesplanning,wateruse,theeconomicinvestmentandnaturalpurificationability,.,AirPollution,Takeallkindsofmeasurestoreducepollutants,overallplanning,rationaldistribution,energystructure,raiserate,districtheatingandcentralheating,affores