Pb distribution and translocation in Jiaozhou Bay |
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| Authors: | Dongfang Yang Chang Su Zhenhui Gao Peiyan Sun Lixin Cao |
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| Affiliation: | [1]Marine Science College, Zhejiang Ocean University, Zhoushan 316000, China [2]North China Sea Environmental Monitoring Center, SOA, Qingdao 266033, China [3]State Key of Urban and Regional Ecology, Research Center for Eco-Environmental Science, Beijing 100085, China [4]College of Animal Science and Technology, Liaoning Medical University, Jinzhou 121000, China |
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| Abstract: | The trends of distribution, translocation and seasonal change of heavy metal Pb were studied based on the surface and bottom water sampling in Jiaozhou Bay in 1979, and compared with those in 1990's. The results showed that the source of Pb in the bay was from wastewater and sewage in the east of Jiaozhou Bay from ocean vessels. Pb concentration was higher in spring and lower in summer and autumn, and remained stable through sedimentation in the bottom layer. The overall water quality was good in 1970's. Compared with the environmental monitoring data of 1995-1999, Pb pollution had become serious. Therefore, more efforts should be made to protect the bay from Pb pollution. |
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| Keywords: | heavy metal Pb distribution pollution source translocation Jiaozhou Bay |
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