Abstract
Pb pollution is one of the most critical environmental issues in the world. This paper analyzed the content, pollution level and pollution source of Pb in Jiaozhou Bay based on investigation data in surface waters in 1987. Results showed that Pb contents in surface waters in May, July and November 1987 were 1.95-7.96 μg L−1, 5.02-61.61 μg L−1 and 3.98-24.64 μg L−1, respectively, and the pollution levels were moderate, heavy and relative heavy, respectively. The major Pb sources in this bay were river flow and marine current, whose source strengths could be as high as 61.61 μg L−1and 24.64 μg L−1, respectively. The pollution level of Pb in Jiaozhou Bay was serious enough in 1987, and the pollution control and environmental remediation were necessary.
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