中国内蒙古河套平原砷污染地下水勘探技术方法

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1、第37卷第3期中国地质V01．37．No．32010年6月GEOLOGYINCHINAJun．．2010TechniquesandmethodsofarseniccontaminatedgroundwaterexplorationintheHetaoplainofInnerMongolia，ChinaToshiakiIT01，FumioKANAl2，KazuroBAND03ResearchgroupforarseniccontaminationofgroundwaterinInnerMongoli#，AsiaArsenicNetwork5，ResearchGroupforApplie

2、dGeology6(1．KOKUSAIKOUGYOCo．，Ltd．，2-24—1，Harumi—choIl，Fucyuu—shi,，Tokyo183-0057。Japan；2．KanaiConsulmagengineeroflace2—35,Kouyoudai,Uchinada-machi,Kahoku—gun,Ishikawa,920—0272，Japan；3．KOWACo．，Ltd．，6-1，Shinkou—thou，Chuou～ku。Niigata-shi,Niigata950—8565，Japan；4．c／oKouichiTERASAKI，6379—72，lgarasiIch

3、ino-chou,Nishi—ku,Niigata-shi,Niigata950—2101，Japan；5．c／oHidenoriYOKOI，2-9—6—208。Tsurunoshima,Miyazaki---shi,Miyazaki880—0014，Japan；6．c／oKazlI”lbSUENAGA,1—15—31—202，Hon—chou,Asaka—slli'Saitama351—0011，Japan)Abstract：In1990，thechronicarsenicosispatientsduetodrinkingcontaminatedgroundwaterwererep

4、ortedintheHetaoplainofInnerMongolia，China．Atpresent，itisestimatedthatmorethan410，000ofinhabitantsaredamagedbyarsenicpoisoninginInnerMongolia．Wecarriedouthydrogeoiogicalsurvey，geologicalsurvey，medicalsurveyandinstallationofpipedwatersupplysystemsforan8-yearperiodfrom1997to2004．Thesesurveysreveal

5、edthemechanismofthegroundwatercontaminationbyarsenicintheHetaoplainasfollows：Fe-oxyhydroxideisdissolvedbyintensifyingreducingconditionintheaquifersasaresulttheadsorbedarseniciSreleasedintogroundwater．Inordertopreventfurtherincreaseofarsenicosispatients，itisimportanttostopingestingcontaminatedwa

6、ter,andtosupplysafedrinkingwater．Forthatpurposeweneedtounderstandthemechanismofarseniccontaminationbasedongeologicalandhydrogeologicalconditionsofthefield．Keywords：arsenic；groundwater；contamination；Hemoplain；InnerMongolia；ChinaCLCnumber：P641．72ArticleCharacter：AArticleID：1000．3657(20lO)．03-0730

7、．1l1IntroductionIntheHetaoplain,naturalhigharsenicgroundwaterhasaffectedwellsin662villagesandmorethan180，000ofpeoples．WecarriedouthydrogeologicalandmedicalinvestigationstograsptheoutlineofarseniccontaminationthroughouttheHetaoplai