Considerations on aims and approaches of the study on the transport of trace elements in a river watershed

Matsunaga, Takeshi

Concerning the study subject on the transport of radioactive and trace elements in a river watershed, its aims and methodological approaches have been discussed. It is stressed that a numerical model is prerequisite and to be keenly developed to assess the physiological impact and to provide appropriate countermeasures in case of a nuclear accident. The outcome of the modeling will be also important for the other environmental issues,for example, associated with metals and metalloids. From a methodological aspect, techniques, which are ought to the nuclear sciences, will have further contribution to the questions of toxic chemicals hereafter.