IN a study of mercury in sediments in Swansea Bay, mercury dispersed from an industrial outfall into the bay is at least partially retained in the sediments within a radius of 2 km. There is a very significant correlation between the mercury content and organic carbon content of sediments ranging from sand to mud over the whole bay, but with a higher ratio of mercury to organic carbon in the contaminated sediments.
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CLIFTON, A., VIVIAN, C. Retention of mercury from an industrial source in Swansea Bay sediments. Nature 253, 621–622 (1975). https://doi.org/10.1038/253621a0
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