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作 者:史致丽[1] 孙秉一[1] 王恕昌[1] 于圣睿[1] 郝恩良[1] 王永辰[1] 戴国陞[1]
机构地区:[1]山东海洋学院化学系
出 处:《山东海洋学院学报》1982年第4期27-36,共10页
摘 要:由河流所携带的各种成分(包括天然风化产物及人为污染物质),入海后将逐步地转移到海底。这种转移过程在河口区最显著。此现象已经引起了人们的重视,并进行了大量的研究工作。The contents of zinc,lead, organic matter and iron in surface sediments (33 stations) of the Northeast Jiaozhow Bay were measured. The results obtained are summarized as follows:1. The highest concentration of zinc and lead in sediments occured in the estuarine areas.2. The relationships between the concentration of zinc (or lead) and either organic matter or iron content in sediments are as follows:Zn (ppm)= 18.63 + 52.94 Organic matter (%)Zn (ppm) = -9.38 + 35.31 Iron (%)Pb (ppm)=21.11+5.23 Organic matter (%)Pb (ppm)= 14.67 + 7.23 Iron (%)Pb (ppm) =-0.3312 + 0.0488 Zn(ppm)3. The rates of zinc and lead removed from sea water into sediments were estimated by means of zinc concentration variation in sea water with tide at a station and TDL of lead concentration vs chlorinity in sea water respectively. The removal rate of lead is higher than zinc, and the difference is concerned with the forms 01 zinc and lead in sea water.4. The zinc and lead introduced by rivers into sea water are mainly removed with flocculation of organic matter in the estuarine areas at first and then with precipitation of iron in the offshore areas.
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