北京市门头沟区农村自备井水质总硬度分布特征

··Distributioncharacteristicsoftotalhardnessofruralself-preparewellwaterqualityinMentougouDistrictofBeijing付慧英，聂晶，李勇FUHui-ying，NIEJing，LIYong102300。2012—2013GB/T5750－2006《》GB5740－2006《》。287．5±76．1mg/L2．9%。P＜0．05pH、、、P＜0．05。。自备水源;总硬度;分析Ｒ123．9A1004－1257201417－2452－03Distributioncharacteristicsoftotalhardnessofruralself-preparewellwaterqualityinMentougouDistrictofBeijingFUHui-yingNIEJingLIYongMentougouCenterforDiseaseControlandPreventionBeijing102300ChinaAbstractObjectiveTounderstandthedistributioncharacteristicsoftotalhardnessofruralself-preparewellwaterqualityinMentougoudistrictprovidebasisformanagementofruralself-preparewatersource．MethodsThecentralizedwatersupplysourcewaterinruralareafrom2012-2013wasmonitoredbycensusmethod．AccordingtoGB/T5750-2006“DrinkingWaterStandardTestingMethod”thewaterwasdetected．AccordingtoGB5740-2006“HygienicStandardforDrinkingWater”theresultswereevaluated．ＲesultsThemeanoftotalhardnessofself-preparewatersourcedrinkingwaterwas287．5±76．1mg/Lexceededratewas2．9%．ThedifferenceoftotalhardnesscontentindifferentareaswasstatisticallysignificantP＜0．05thecorrelationoftotalhardnesswithpHchloridesulfateandtotaldissolvedsolidswasstatisticallysignificantP＜0．05．ConclusionThequal-ifiedratesoftotalhardnessofruralself-preparewellwaterishigherwaterishardwater．Intheregionaldistributionwiththein-creasingofelevationthecontentsoftotalhardnessdecrease．KeywordsSelf-preparewatersourceTotalhardnessAnalysis。Ca2+Mg2+。。《》1。。98．5%。。。2012—2013。11．1对象2012—20131。400m。、、、。1．2检测依据及评价标准GB/T5750－2006《》、。GB5749－2006《》。1．3统计学分析SPSS13．0。珋x±stχ2。P＜0．05。22．1总硬度含量分布特征136287．5±76.1mg/L42．9%。2．2区域分部特征·2542·201493017OccupandHealthSept.2014Vol.30No.171。t=2．352P＜0．05。12012—2013珋x±smg/L50324．6±75．286270．0±68．2136287．5±76．12．3深、浅井水分布特征180m80m80m2。136t=0．016P＞0．05。2。22012—2013珋x±smg/L21287．8±52．0115287．5±79．9136287．5±76．1—＜80m—≥80m。2．4不同分类标准总硬度含量值分布特征CaCO3、、43。54．4%40．44%。χ2=12．558P＜0．01χ2=13．281P＜0．01。32012—2013%50～149a150～299a300～499a≥450a00.001712．503022．0632．215036．7632．215741．912518．3810．748663．2432．217454．45540．4442．94136100．00aCaCO3mg/L。2．5总硬度与其他化学指标的相关性分析2012—2013、pH、、、、4。pHr=－0．355P＜0．01、、r=0．635P＜0．01r=0．609P＜0．01r=0．864P＜0．01。397．1%287．5±76．1mg/L。、1-2。。。。pH、、、。。28．58m3/a74．72%3。。5%4。。6-8。、、5、。。425mg/L9。42012—2013珋x±spHmg/Lmg/Lmg/Lmg/L50324．6±75．23．2±6．77．7±0．248．0±44．8112．2±58．5529．7±183．60．06±0．0586270．0±68．21．2±2．37．8±0．319．4±17．161．6±45．9367．5±117．40．04±0．06136287．5±76．11．9±4．57．7±0．329．9±33．280．2±56．3427．1±164．50．05±0．062456·3542·201493017OccupandHealthSept.2014Vol.30No.1730．60%25．20%52008188km2010。451．47%2005—200930．60%52010—201332．56%、38.27%、77．76%、83．11%。。、、、、、6-7。、、、、。、、389、。、、。1．2005—2007J．20091981861－1862．2GB5750－2006．S．2006．3GB5749－2006．S．2006．4．M．20101－79．5．2005—2009J．2011184661－664．6．2005—2008J．2009244212－213．7．1996—2005J．2006166712－714．8．2007J．2009162412－414．9．J．2009193648－650．2014－03－042014－04－222453pH、、。110。。Ca2+、Mg2+pH。pH＜6．51。、Ca2+、Mg2+。、。。。1．J．201037433－37．2．J．2010284276－278．3．OL．http//．bjdfz．gov．cn/ziranhuanjing/shuili．jsp．1999．4．J．20096652－56．5．J．2001177103－106．6．J．201322175－176．7．2003—2008J．2009131372－73．8．J．201015525－27．9．M．20026．10．J．2011285420－422．2014－02－272014－04－28·6542·201493017OccupandHealthSept.2014Vol.30No.17