Harbours
are usually located in estuaries and have large inputs from land through river
flow and runoff which contains various pollutants such as trace elements,
radionuclides, etc. Most of the pollutants (i.e., natural radionuclides) are
accumulated into harbour sediments as a result of scavenging processes that
occur in water column. The harbour also behaves like a reservoir which traps
and buries all anthropogenic and natural pollutants.
Furthermore, harbours
which are usually located at the end of rivers might be influenced by eroded
material transported from land into the harbour area. Naturally occurring
radionuclides present in a harbour ecosystem might come from river effluents of
which their distribution is related to their back rock sediments and
terrestrial origin. Read More>>>>
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