CONTENT OF DISSOLVED INORGANIC CARBON (DIC) IN THE WATER ENVIRONMENT OF BACH DANG ESTUARY (HAI PHONG)

Abstract

The article presents the results of initial research on dissolved inorganic carbon (DIC) content and evaluation of DIC transportation in the water environment of the Bach Dang estuary (Hai Phong). In water, carbon exists in two main forms: inorganic carbon and organic carbon. There are four basic forms of carbon in seawater: Dissolved inorganic carbon (DIC), Particulate inorganic carbon (PIC), Dissolved organic carbon (DOC), Particulate organic carbon (POC). In marine environments, DIC has the largest content (98% of the total carbon). The DIC content in the water at the first survey points ranged from 17.40 to 23.28mgC/l, the average value was 21.76mgC/l; the second survey ranged from 18.89 to22.85mgC / l, the average value was 21.57mgC/l; initially calculating of DIC transportation in the water environment of the Bach Dang estuary was 1189.56 tons C/day (434190 tons C/year).