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Even when an estuary is at steady state, it shows the typical features of a sink for contaminants, although input from rivers into the estuary may result in equal output from the estuary to the sea, thus in such estuaries accumulation of material is practically insignificant. The essential properties which determine the processes and transfer of contaminants to particulate matter are the chemical...
Three symposia on environmental geochemistry in tropical countries, held in Niter6i, Brazil (1993), in Cartagena, Colombia (1996) and in Nova Friburgo, Brazil (1999), made it very clear that tropical geochemistry is of world standard and fast increasing in multi disciplinarily and impact on important geochemical paradigms. It has additionally strong links with the economy of tropical countries, such...
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