DETERMINATION AND DISTRIBUTION OF ELEMENTS IN SUSPENDED MATTER AND BOTTOM SEDIMENTS FROM THE ESTUARIES OF THE SEA-OF-JAPAN, THE EAST CHINA SEA, THE SOUTH CHINA SEA AND THE BERING SEA

Some aspects of sample analysis (for example, sampling, sample prepari ng, experimental conductions) from estuaries zones of the west part of pacific shore have been discussed. The content of elements with diffe rent physico-chemical and geological properties in the water samples, suspended matter, bottom sediments, plankton and aerosols have been st udied by the methods of neutron activation analysis, X-ray fluorescenc e and also atomic emission (with ICP) and atomic absorption. Some pecu liarities of their distribution and accumulation have been revealed.