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渤海湾沉积物中总汞的分布及本底值
张湘君¹, 廖先贵¹
国家海洋局第二海洋研究所

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THE DISTRIBUTION AND BACKGROUND OF TOTAL MERCURY IN SEDIMENTS FROM BOHAI BAY

Abstract:

121 samples of the surface sediments were taken from Bohai Bay in 1978-1980, their total mercury values ranged from 0.005 to 0.560 ppm, with an average value of 0.065 PPm. The higher levels (0.05 ppm) were in the west part of the Bay adjacent to the estuary of Beitang. The contents of mercury decreased rapidly with increasing distance from the estuary. The area of Bohai Bay polluted by mercury accounts for 5%. According to the data of 7 cores, the background of total mercury was confirmed to be 0. 05 ppm.

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