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《中國(guó)汞礦及污染場(chǎng)地(土壤)研究》專題
MercuryMiningAreasandContaminatedSites(Soil)inChina馮新斌(XinbinFeng)中國(guó)科學(xué)院地球化學(xué)研究所InstituteofGeochemistry,ChineseAcademyofSciencesLatestprogressofIGCAS
-focusingonHgminingareasOutlineHgminesinChinaHglevelsintheenvironment……HgminesinChinaUpto31numbersofHgminesinChina,provedreserveswereover500t.ProvinceAmountsProvedreserves/tChongqing212955Gansu1513Guangxi11981Guizhou1685709Hubei11280Hunan14990Qinghai23303Shaanxi314791Yunnan43989Provedreservesover500tofmercuryminesinChinaHgminesinGuizhouprovinceHgminesinGuizhouCountyLargescaleofHgminingactivitiesceasedin2004.FewillegalartisanalHgminingcurrentlyscattersinsomeofHgminingareasinGuizhou.RecoveringmetallicHgfromusedmercury-catalyst,probablybeingtransportedfromlargeareainChina.AnotherimportantHgreleasesourceinGuizhouHgminingareasHgminesinShaanxiprovinceHgminesinShaanxiprovincearelocatedinXunyangCounty,approximatelycontaining14,000tofmetallicHg,whichrepresentsabout19.8%ofthetotalinChina.TheXunyangHgminesarepresentlythelargestactiveHgminesinChina.Reserves/tHg/%GongguanSouth公館南礦段58950.35GongguanNorth公館北礦段16390.32Qingtonggou青銅溝72570.35QINGTONGGOU(Hg-Sbfactory)GongguanHgminingpitVillageadjacenttowasterockpilesDrainagefromQingtonggouHgretortingCalcinesDamfromQingtonggouHgretortingHgminesinChongqingInXiushanandJiuyangCoutyReserves/tHg/%Xiushan羊石坑117600.195abandonedJiuyang壩竹沱11950.1inactive羊石坑尾礦庫(kù)Reserves/tHg/%Xinhuang新晃<500-abandonedChatian茶田49900.154-0.334HgminesinHunanprovinceXinhuang1Xinhuang2ChatianProvinceNameReserves/tHg/%
GansuMajiashan5130.502abandonedGuangxiYulan19811.05HubeiZhongguwan12800.434Qinghai
Muhei12940.246Kuhai20090.192inactiveYunnan
Ximatang9200.39abandonedMaocaopo9710.39Shuiyinchang1213
Jinjiashan8850.26HgminesinotherprovincesAccordingtothedatareleasedbytheNationalBureauofStatisticsofChina,over1500tofmetallicHgwasproducedintheNationduringlasttwoyears,upto50percentmightattributetotheXunyangHgminingarea.*HglevelsintheenvironmentincalcinesinsoilinsurfacewaterinambientairinvegetationsinfishHgincalcinesLocationsTotalHg/mg·kg-1MMHg/μg·kg-1Wanshan五坑33~44500.17~2.7十八坑540.54四坑48~11300.97~1.1六坑5.7~6.50.17~0.21Wuchuan79-7100.32-3.9Tongren1.8-900LocationsYearHgFlux/ng?m-2·h-1MaxMinMean五坑200266601601710emission0.910.910.91deposition四坑2004160909905720emission320320320depositionAtmosphericHgsource:approximately9600~30000g·km-2·yr-1.HgfluxfromcalcinesinWanshanHgminingareasHginsoilsAreasTotalHg(mg/kg)Wanshan5.1-790Wuchuan1.3-360Xingren8.4-950Tongren0.18-47.5Danzhai0.67-20.9Xunyang1.3-750Sources:Horvatetal.,2003;Qiuetal.,2005,2006a,b;李平等,2008;Lietal.,2008;馮新斌等,1996;林齊維等,1998;劉鵬等,2008;Zhangetal.,2009.TotalHgconcentrationsinsurfacesoilsinHgminingareasTotalHgandMethyl-HginsurfacesoilinXingrenHgminingarea,GuizhouTotalHginsoildepth-profileinWuchanHgminingareaTotalHginsoildowngradientfromaretortinWuchuanHgminingareaWanshanXingrenPaddyCornfieldVegetablelandPaddyCornfieldVegetablelandMethyl-HgconcentrationintypesofarablesoilfromHgminingareasHginsurfacewaterAreasTotalHg(ng/L)MMHg(ng/L)Wanshan1.9~12000<0.035~11Xingren25~7010-Wuchuan22-3600.21-5.7Tongren92-23002.6-7.9WanshanXingrenThedormantfractionofHginsurfacewateristheparticulatedformHgminingareasTGMinair/ng·m-3Wanshan30~15590Xingren8.4~440Wuchuan19-12200Xunyang7.4-410HginambientairTGMinambientairindifferentHgminingareasinChinaTGMinambientairinWanshanHgminingareasmeasuredin2004TGMinambientairinXunyangHgminingareaHginvegetationsTotalHg/mgkg-1MMHg/μgkg-1Rice0.0049-1.121.61-174Corn0.0089-0.570.25-1.3Cabbage0.12-180.65-5.5rape0.47-0.690.57-0.83moss0.98-950.21-20HginvegetationsfromWanshanHgminingareaMethyl-Hgconcentrationsinricefromdifferent
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