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ID:36356395
大小:4.74 MB
页数:70页
时间:2019-05-10
《南京市不同功能区干湿沉降物污染特征研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、河海大学硕士学位论文南京市不同功能区干湿沉降物污染特征研究姓名:范力申请学位级别:硕士专业:环境工程指导教师:袁旭音20080613河海大学硕士学位论文AbStl?actPointsollrcepolllnionillNa巧iIlgcityisf.eweraIldf.ewerinrecentyears,butmesituationofNa坷ingwatereIlviro哪eIlth嬲notbeeIlimproVed.Soitmealls廿latnon-pointsourcepollutionh舔beenpri
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3、e伍cientlyC0n昀lstomiskindofpolllltion.E}asedonreadinglotsofrelcvantre缸℃nces,tllisp印er跚mmarizespresentrcsearI’hofdryandwetd印ositionpollution.FourtypicalamctionalzonesaStheindust拶area'themaintramcline,thecommercialarea,aIldtheresidentialareawereselectedinN鲫_ji
4、ngcity.TbinvestigatetheheaVymetalspollutiona11dmedistributionofch锄iccompositionsconcen仃ationsofprecipitationineach矗mctionalzones.Inwhichmed拶锄dwetdepositionsampleswasconductedbe铆e阻July,2006aIldJulM2007.WbmeaSuredmechemiccompositionsa11dtheacidityofprecipitat
5、ion,includingpH,TN(totalnitl.ogen)andTP(totalphosphorus);heavymetalssuchasPb,Cu,Zn,Cd,Cr,Cd.Wbanalyzedmep01lutionV撕ationineVery如nctionalzonesa11dstudieditsconstitlltents,densityleV%teI】叩oralVariation,pollutionfeatureandsources.Experimentsdatawllichare丘’omea
6、chfhnctionalzonesd印ictsmat:tllehi曲estValueofpH,TN(totalnitrogell)a11dTP(totalphosphoms);heavymetalssuchasPb,Cu,Zn,Cd,Cr,Cdistra衔carea,andthesecondisindustrialarea.Thepollution舶mcommercialareaaIldresidelltialareaarelowertll2u1tllefomers.Potentialecolo酉calris
7、kassessmentshowst11attra伍careaa11dindustrialareahavehigcrpotentialecolo百calrisk.7111econceIltrationofheaVymetalsinwetdepositionarehi曲erinau咖andwint%lowerinspringaIldsumm瓯Theorderof6veheaVymetalseIlriChmentf.actorisCu>Zn>Pb>Cd>Cr.Thee11dchmentf.aIctorofCuis1
8、1.49.Soit’sexpectedthatmeresearch6ndingsbasedonmespotcaIlbeusedtootherareaofNa囱ing,andproVidescieIltificbasisforcontr01lingd巧andwetd印osition河海大学硕士学位论文pollution孤dsimplysolVingtheprobl锄ofurballwaterpollu
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