成都市郊区土壤中重金属元素分析及环境评价VIP免费

第1页共39页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第1页共39页成都市郊区土壤中重金属元素分析及环境评价摘要：选取成都郊区龙潭寺北湖周围一片区域，进行剖面土壤采样，利用X荧光分析仪，对土壤表层及深层中Fe，Zn，Cu，As，Pb，Cr6种重金属元素进行含量测定，与热电厂周围土壤数据以及土壤背景值进行对比分析。分析得出该区已有部分污染，主要污染元素为Zn，Cu。污染最主要来源为农药，化肥的大量使用，汽车尾气以及城市燃煤，热电厂排放的烟尘等也对起其环境造成了一定的影响。这表明城市化进程已经开始影响到城市周边的环境，对城市郊区的污染防治不仅要从本地的实际情况出发，也要注意城市工业的影响。关键词：郊区土壤重金属元素环境评价第2页共39页第1页共39页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第2页共39页AnalyzingelementsofheavymetalsandvaluatingenvironmentintheearthofChengdu’ssuburbanareas(Geochemistry200206030102JIANGHONGteacher:PENGXIUHONG)Abstract:SelectaregionaroundtheNorthlakeatLongtanshi,asuburbinChengdu,carryonthesectionplanesoilsampling,measurethecontentofFe,Zn,Cu,As,Pb,Cr,thesixheavymetalelementsintopsoilanddeepsoil,byusingofXfluorescenceanalyzer,andthencontrastwiththedataofthesoilaroundthethermalpowerplantandsoilbackgroundvalue.Theresultshowsthatpartsofthisareahavebeenpolluted,andZn,Cuisthemainpollution.Themainsourceofpollutionistheagriculturalchemicals,andmassiveusingofthechemicalfertilizer,theautomobileexhaustandthecitycoal-burning,andmist,thethermalpowerplantemissions,andsoonallhavecertaininfluenceonenvironment.Theresultalsoindicatesurbanizedadvancementhasalreadystartedtoaffectperipheralenvironmentofthecity,andnotonlytomadeallowanceforthelocalactualsituation,butalsopayattentiontotheinfluenceof.theindustrycityinpollutionpreventingandcontrollingofcitysuburbs.Keyword:Suburbsoilheavymetalelementenvironmentassessment目录第3页共39页第2页共39页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第3页共39页摘要：.........................................................1Abstract:.............................................................2前言.............................................................50.1选题依据及研究意义.............................................50.2国内外研究现状及进展...........................................90.3研究思路、方法、内容...........................................111.研究区基本概况................................111.1地理概况.......................................................111.2资源及工业分布现状.............................................121.3区域地质.......................................................121.3.1大地构造位置...............................................121.3.2地层.......................................................131.3.3构造.......................................................142.样品的采集与分析............................142.1样品采集.......................................................142.1.1.采样方法...................................................142.1.2.采样位置...................................................142.1.3.采样重量...................................................152.2样品的处理.....................................................152.2.1样品的处理:.................................................152.2.2.样品的实验室室内的制备。...................................162.3.样品的分析测试.................................................162.3.1X荧光分析原理..................