Rivers oceans

Komada, T., and Reimers, C.E. (2001) Resuspension-induced partitioning of organic carbon between solid and solution phases from a river-ocean transition. Mar. Chem. 76, 155-174. 

Lancelot C, Gypens N, Billen G, Gamier J, Roubeix V (2007) Testing an integrated river-ocean mathematical tool for linking marine eutrophication to land use the Phaeocystis dominated Belgian coastal zone (Southern North Sea) over the past 50 years. J Mar Syst 64 216-228... 

Biogeochemical Processes on the Amazon Shelf Changes in Dissolved and Particulate Fluxes During River/Ocean Mixing... 

For these reasons, biogeochemical processes in the water column and in the seabed need to be understood in the Amazon River/ocean mixing zone. The specific objectives of the paper are as follows ... 

Carbon is transported into the Amazon River/ocean mixing zone in numerous forms including dissolved inorganic carbon (DIC), dissolved organic carbon (DOC), and particulate organic carbon (POC). The average DIC, DOC, and POC concentrations in Amazon River water are 460, 275, and 180 pmol L-1 (Richey et al. 1991), which indicates that DOC supply exceeds POC supply and that DIC is the most abundant form of carbon in the river. Sholkovitz et al. (1978) noted that most riverine dissolved... 

Biogeochemkal Processes on the Aina2Dn Shdf Changes in Dissolved and Paniculate FIuks Duiing River/Ocean Mixing 339... 

The fluxes illustrated in Fig. 17.3 reveal several important aspects of N cycling in the Amazon River/ocean mixing zone. First, the external supply of biologically available dissolved nitrogen (totalling 10-12 x 10 mol d, including N fixation) is considerably... 

Biogeocheinical Processes on the Aina2on Shdf Changes in Dissolved and PaiticulalB Fluxes During River/Ocean Mixing 347... 

Modeling efforts must be conducted with these various geochemical studies. The cycling and export of chemical compounds within the river/ocean mixing zone are dependent on estuarine and shelf circulation. Characterizing the end member concentrations in Amazon River water, surface ocean water, upwelled offshore water, and the northward flowing North Brazilian... 

DeMaster D. J. and Aller R. C. (2001) Biogeochemical processes on the Amazon Shelf changes in dissolved and particulate fluxes during river/ocean mixing. In The Biogeochemistry of the Amazon Basin (eds. M. E. McClain, R. L. Victoria, and J. E. Richey). Oxford Press, pp. 328-357. 

Effects of environmental chemical agents on human health perhaps represent the bulk of environmental health research. People may be exposed to harmful chemicals in the outdoor air, surface water (lakes, rivers, oceans, etc.), soil, indoor air, at the workplace, in food, or from consumer products. Exposures to chemicals (or other agents) in the workplace are called occupational exposures . Food exposure to chemical or biological agents may occur as a result of agricultural applications, environmental pollution, or are formed when foods are... 

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