內(nèi)蒙古麻地壕灌區(qū)土壤中HCHs的分布特征和風(fēng)險(xiǎn)評價(jià).pdf

1、分類號X592學(xué)校代碼10129UDC502學(xué)號2013206006內(nèi)蒙古麻地壕灌區(qū)土壤中HCHs的分布特征和風(fēng)險(xiǎn)評價(jià)DistributionRiskAssessmentofHCHsinMaDiHaoIrrigationAreaofInnerMongolia申請人：高麗惠學(xué)生類別：學(xué)術(shù)型碩士學(xué)科門類：工學(xué)學(xué)科專業(yè)：市政工程研究方向：水環(huán)境與水污染控制指導(dǎo)教師：裴國霞教授論文提交日期：二〇一六年六月DistributionRiskasse

2、ssmentofHCHsinMadihaoirrigationareaofInnerMongoliaAbstractHCHsisakindoftypicalpersistentganicpollutantsthemigrationenrichmentofHCHsinplantbodyitsbiologicalchemicalsthatmakeHCHsendsupwiththefoodchainenterhumanbodytohavece

3、rtainthreattofoodsafetyhumanhealth.TheHCHswasidentifiedasthegoalpollutantwhichbasedonthesoilofMadihaoirrigationareaofInnerMongoliaasthestudyareaanalysistheHCHslevelofresiduesinthesoilpollutionstatusanalyzesthedistributio

4、nofHCHsfromthetypeofsoilirrigationcropstructure，analyzestherelationshipwiththephysicalchemicalpropertiessourceanalysisriskassessmentfit.Mainconclusionsareasfollows:(1)DetectionrateofHCHsinMadihaoirrigationsoilishigherthe

5、αHCHγHCHis100%βHCHis74.19%δHCHis96.77%.HCHscontentintherangeof1.333ng.G1~21.128ng.G1theaveragelevelof8.995ng.G1thepesticideresidueofHCHsinMadihaoirrigationareaisinloweraveragelevel.(2)AnalyzesthedistributionofHCHsitsisom

6、erfromthetypeofsoilirrigationcropstructure.FromtheanalysisresultsofHCHsindifferentsoilresidualwaslightloamsheavyloamsloamclayloamFromtheanalysisresultsofHCHsunderdifferentirrigationconditionswasWellwaterirrigationareaThe

7、YellowRiverirrigationareadrylHeiheriverirrigationareaDifferentcropsofHCHsresiduesinsoilfwastelcnChinesewolfberrypoplaralfalfasunflowerPhilippine.RespectivelytestedthepropertiesofsoilganicmatterpHsaltmoisturecontentfromth

8、eanalysisresultspHHCHssignificantlyrelated.(3)Evaluatingecologicalhealthrisksoftheirrigationarea.FromthepointofecologicalriskMadihaoinirrigationfarmlsoilonthesurfaceofHCHspesticidewithoutriskFromtheperspectiveofhealthris

9、kassessmentbreathwaycancerriskexposureisfarlessthanthroughthemouthexposedwayfarskincancerriskexposurepathwayscancerriskthecomprehensiveriskexcept2152024ofsamplepointthanrisklimitexceedingthemaximumlimitriskmeasuresshould