空氣污染 水污染 大氣污染的介紹(英文)ppt精選課件

.,OurCountrysEnvironmentalProblems,.,Word,Ecologicalenvironment生態(tài)環(huán)境Desertification荒漠化Salinization鹽堿化Offscum廢渣Mining采礦業(yè)Biologicalchain生物鏈Biodiversity生物多樣性Wastewater污水WorldHealthOrganization世界衛(wèi)生組織undergroundwater地下水,drinkingwater飲用水Waterbody水體Contaminate污染Rhine萊茵河Greenhouseeffect溫室效應Groundlevelozone地面臭氧particulatematter微粒物質(zhì)biologicalmaterials生物材料respiratorydisease呼吸疾病stationarysources固定污染源,.,Focal焦點的Quota定額Coordinate使協(xié)調(diào)Emission發(fā)射Afforestation造林Adsorption吸附Photosynthesis光合作用Phosphorus磷Filtration過濾Biodegradable能被細菌分解的Trash垃圾Consumption消耗Rectification改正,globalwarming全球變暖gaseoussystem氣態(tài)系統(tǒng)ozonedepletion臭氧枯竭Ecosystem生態(tài)系統(tǒng)Pollutants污染物photochemicalsmog光化霧Countermeasure措施Propaganda宣傳Ascendant優(yōu)勢Detergent洗滌劑Evaporative蒸發(fā)的,word,.,WastePollution,.,.,WATERPOLLUTION,.,Thefourbasicnaturalresourcesarewater,air,landandenergy.Weneedwaterformultipleusesandacertainqualityisrequired.Itsuseleadstothegenerationofwastewaterthatcancauseanimpactontheenvironment.水，空氣，土地和能源是四個基本的自然資源。水的用途多種多樣，而且要求其達到一定的標準。但是，由于人類使用而產(chǎn)生的污水造成了對環(huán)境的影響。,.,Waterpollutionoccurswhenabodyofwaterisadverselyaffectedduetotheadditionoflargeamountsofmaterialstothewater.水污染是水體中添加大量其他物質(zhì)而造成的負面影響,.,Drought,Pollution,.,Approximately300millionnationwidehavenoaccesstocleanwater.Furthermore,over700millionChinesedrinkfetidwaterbelowWorldHealthOrganizationstandards.Almost90%ofundergroundwaterincitiesisaffectedbypollutionand80%ofChinasriversfailtomeetstandardsforfishing.Almostallofthenationsriversareconsideredpollutedtosomedegreeandhalfofthepopulationlacksaccesstocleandrinkingwater.Ninetypercentofurbanwaterbodiesareseverelypolluted.全國約有3億人使用不上干凈的水，此外，有超過7億中國人飲用的水沒能達到世界衛(wèi)生組織的標準，幾乎90%的城市地下水受到污染，80%的中國河流不符合捕魚標準，某種程度上說，幾乎所有的河流都受到某種程度的污染，一半的人口缺少干凈的飲用水，90%的城市水體受到嚴重污染。,.,ShuiYuBingevents水俁病事件（1953-1956）Japanbonepaindiseaseevents骨痛病事件（）1955-1963）JapanpoisonoussubstancescontaminatetheRhineevents劇毒物質(zhì)污染萊茵河事件1986Switzerland,Germany,France,Thefamouswaterpollutionincidents,.,AirPollution,.,Pollutants,Pollutantscanbeclassifiedaseitherprimaryorsecondary.Primarypollutants:emittedfromaprocess.suchas:ashfromavolcaniceruption;thecarbonmonoxidegasfromamotorvehicleexhaust;sulfurdioxidereleasedfromfactories.,.,Secondarypollutants:notemitteddirectly,theyareproducedwhenprimarypollutantsreactorinteract.Animportantexampleofasecondarypollutantsisgroundlevelozone,itisoneofthemanysecondarypollutantsthatmakeupphotochemicalsmog.,.,Majorpollutantsproducedbyhumanactivityinclude:,sulfurdioxide:fromburningofcoalandoil.nitrogendioxide:fromhightemperaturecombustion.Carbonmonoxide:incompletecombustionoffuelsuchasnaturalgas,coalorwood.Vehicularexhaustisamajorsource.Carbondioxide:agreenhousegasemittedfromcombustion.Chlorofluorocarbons含氟氯烴:harmfultotheozonelayeremittedfromproductsbannedfromuse.Particulatematter:producedbygaseousprimarypollutantsandcompoundsinphotochemicalsmog.,.,Indoorairpollution,Airpollutioncontainedindoorairpollution.chemicalsources,physicalsourcesandBiologicalsources.Decorativematerialpollution:formaldehyde甲醛ammonia氨氣,.,Countermeasures,.,GarbagePollution,Changethewayofproduction,Stepuppublicityeffortstopromotegreenconsumption,Toencouragegarbagecollectiontothedevelopmentofindustryandlegalization,Carryoutthechargingpolicy,cleanandgreen,toxicandhazardoussubstances,wasterecycling,Mediaandpublicize,toreducewasteoutput,greencertifiedproducts,.,WaterPollution,Protectthewatersourcearea,Increasetheurbansewageandindustrialwastewatertreatmentefforts,Strengthencitizensawarenessofprotectingtheenvironment,Realizetherecyclingofthewastewateruse,Reducewastewaterandpollutants,Developregionalwaterpollutionpreventionandcontrolsystem,Comprehensiveconsiderationofthewaterresourcesplanning,wateruse,theeconomicinvestmentandnaturalpurificationability,.,AirPollution,Takeallkindsofmeasurestoreducepollutants,overallplanning,rationaldistribution,energystructure,raiserate,districtheatingandcentralheating,affores