台风“凤凰(Fung-wong)”对泉州湾重金属分布的影响  

Impact of Typhoon"Fung-wong"on the Distribution Patterns of Heavy Metals in the Quanzhou Bay

作　　者：李云海[1,2] 陈坚[2] 陈建宁[2] 黄财宾[2] 王爱军[2] 李东义[2] 

机构地区：[1]中国海洋大学海底科学与探测技术教育部重点实验室,青岛266100 [2]国家海洋局第三海洋研究所,厦门361005

出　　处：《环境科学》2010年第6期1450-1458,共9页Environmental Science

基　　金：福建省青年人才项目(2007F3058);中国海洋大学海底科学与探测技术教育部重点实验室开放基金项目(2008-08);国家908专项(908-ZC-Ⅰ-09)

摘　　要：利用等离子质谱仪(ICP-MS)测定了台风"凤凰(Fung-wong)"登陆后泉州湾6个13h连续站悬浮颗粒物及1个13h连续站(Q4站)表层沉积物的样品中Cr、Ni、Cu、Zn、As、Pb和Cd等元素的含量.表层沉积物中其平均含量分别为60.4、50.3、26.5、101.7、3.36、40.0和0.180μg/g;悬浮颗粒物中其平均含量分别在1.108～7.408、0.476～3.394、0.809～5.046、3.190～19.337、0.087～0.595、2.621～10.073μg/L和4.160～50.828ng/L之间,从内湾向外湾逐渐降低.与平静海况下相同站位和潮时中相同元素含量及分布进行对比,结果显示台风过境后在1个潮周期内的样品中重金属含量和分布特征较正常海况下均有显著变化:Q4站表层沉积物中除Ni元素显著增加外,其他元素含量明显降低,分布特征与正常海况下类似,但变化幅度增加;悬浮颗粒物中重金属含量增加,其分布特征与正常海况下的有显著差异,因地理位置而异.台风期间的强动力过程导致的重金属"二次污染",以及伴随的强降雨增加了入海物质量及其扩散范围是影响重金属含量和分布的直接原因.本研究结果将为泉州湾重金属污染的准确评价和科学治理提供依据,为评估台风对重金属污染的综合影响提供直接佐证.Based on the inductively coupled plasma mass spectroscopy（ICP-MS） data of concentrations of 7 heavy metals（including Cr,Ni,Cu,Zn,Cd,Pb and As） in suspended particles and surface sediments samples collected at 6 and 1 13-hours-mooring stations,respectively,in Quanzhou Bay 4 days after the landing of typhoon＂Fung-wong＂.The average contents of Cr,Ni,Cu,Zn,As,and Cd are 60.4,50.3,26.5,101.7,3.36,40.0 and 0.180 μg /g,respectively,in the surface sediments,and are 1.1087.408,0.476-3.394,0.809-5.046,3.190-19.337,0.087-0.595,2.621-10.073 μg /L and 4.160-50.828 ng /L,respectively,in different stations in the suspended particles.The contents and distribution patterns of 7 heavy metals during a tidal cycle were significantly changed after typhoon＂Fung-wong＂by contrasting with that in same stations and tidal time at an ordinary situation.The contents of heavy metals,besides Ni,evidently decreased but the distribution patterns were similar with that in an ordinary condition with relatively large grads after typhoon ＂Fung-wong＂in the surface sediments at station Q4.While in the suspended particles,the contents of heavy metals were evidently increased with the distribution patterns varied obviously and differently due to their geographical position after typhoon＂Fung-wong＂.These impacts of typhoon＂Fung-wong＂to the contents and distribution patterns of heavy metals could be attribute to the ＂second contamination＂and the increased supply of particles materials from continent during the typhoon process.The results of this study provide a reference to accurate assessing and scientific governing the heavy metals＇contamination,and provide a directly support to evaluating the integrated impacts of typhoon process on the contamination of heavy metals in the Quanzhou Bay.

关 键 词：泉州湾 重金属 台风“凤凰(Fung-wong)” 表层沉积物 悬浮颗粒物 

分 类 号：X145[环境科学与工程—环境科学]