都龙矿区三岔河铜、锌污染特征的研究.doc

都龙矿区三岔河铜、锌污染特征的研究.doc都龙矿区三岔河铜、锌污染特征的研究贝荣塔,王艳霞,吴明(四南林业大学环境科学与工程系,云南昆明650224)摘要:该研究通过对都龙矿区两支流水质、底质进行采样分析,探讨了河流底质、水质中铜、锌的污染特征及其相互关系。结果表明,花石头河水质铜、锌浓度远高于天生桥河,两支流都是平水期铜、锌浓度高于丰水期。而两支流表层底质铜、锌浓度超标严重,且天生桥河高于花石头河。在两个采样期,丰水期底质铜、锌浓度高于平水期,即底质中铜、锌浓度有随季节推移而下降的趋势,丰水期底质铜、锌浓度波动大,平水期趋于平稳。研究还表明,两支流底质中铜、锌浓度与水质相应重金属浓度具有负相关关系,即底质铜、锌浓度越高,水质铜、锌浓度反而降低。关键词:水质;底质;铜污染;锌污染;相关关系中图分类号:X143文献标识码:AStudyonCopper&ZincPollutionCharacteristicsofSanchaheRiverinDulongMineBEIRongta,WANGYanxia,WUMing(DeparlinenlofEnvironnienlScience&Engineering,SouthwestForestryUniversity,Kunming,Yunnan650224,China)Abstract:Inthispaper,basedonsamplingandanalyzingthewaterqualityandsedimentfromtwotributariesofDulongminearea,thecoppcr&&oncentrationofwaterqualityinHuashitouriverwerefarmorethaninTianshengqiaorivers,andthecopper&,thecopper&oncentrationofthesurfacelayersedimentwerebeyondnationalstandardseriouslyandthecopper&,thesedimentcoppcr&oncentrationinfloodflowperiodwerehigherinaverageflowperiods,thatis,thesedimentcoppcr&oncentrationbecamegraduallylowerandlowerwithseason,inwhichthesedimentcopper&oncentrationinfloodflowperiodlluctuatedlargelyandthes