俄罗斯外贝加尔氟的水文地球化学异常

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1、第37卷第3期2010年6月中国地质GEoLoGYINCHINAV01．37．No．3Jun．。2010HydrogeochemicalanomaliesoffluorineinTransbaikalia，RussiaLeonidV．Zamana(InstituteofNaturalResources，EcologyandCryologyofSiberianBranchRAS，Chita,Russia672014)Abstract：Fivetypesofhydrogeochemiealanomaliesoffluorinewithdifferen

2、ceinformationprocesses，sourccsofinflowinthewaterenvironmentandleveIofconcenwadonaredeterminedandcharacterizedinthearticle．KeyWords：Fluorine；typesofhydrogeochemicalanomalies；relativeconcentrafion；TransbaikalmCLCnumber：P641．3ArticleCharacter：AArticleID：1000—3657(2010)03-0607-07

3、1IntroductionFluorineisabasicchemicalelementnecessaryforahumanorganism．Drinkingwatersatisfiesupto85％ofthephysiologicalrequirementofaperson【I】．Thelackoffluorineinwaterresultsintoomdecay．itSleadsexcesstofluorosis．Theincreaseofff竹Ca2+ratiocontributestofluorosisprogress．Whenitsle

4、veliSlessthan0．25andfluorinecontentis>1．5mg／L．accordingtotheresultofresearchesmadeinRepublicMoldova,fluorosisispracticallynotdiscovered，whereasatrF‘／疋a≯>2．0it棚ictsOVer70％ofthepopulation翻．Prolongeduseofwaterwithhighleveloffluorineresultsnotonlyindentalfluorosisbutalsoinotherdi

5、seasesofvariousorgansandsystemsofahumanorganism[31．111Russiathemaximumallowableconcentrationoffluorineindrinkingwateris1．2．1．5mg／Ldependingonclimaticconditions．Smallerlevelischaracteristicoftheterritorieswithhotdryclimate．Thelowlimitoffluorinecontentindrinkingwaterisnotnormal

6、izedbut0．5mg／Lisconsideredoptimal．2ThegenerallawsoffluorinedistributioninnaturalwatersFluorineisachemicalelementactivelymigratinginwaters．TherangeofitsconcentrationinnaturalwaterschangesfromanalyticalZero(1essthanO．01me／L)to15．0g／L．Thespecifiedmaximumisestablishedinultraalkal

7、ineQH12．0)miningwatersinagpaiticsyenitesofLovozerskiymassifOiltheKolaPeninsula【4】．Thebackgroundcontentoffluorineinnaturalwatersisinfluencedbylandscape-climaticzoningandgrowstogetherwiⅡ1watertotaldissolvedsolids(TDSonthesumofions)intheprocessofclimatedrynessincreaseandevaporat

8、ionportioninwaterbalanceofterritories．ThusitsportionintheTDSorrelati