Rivers, chemical composition Rhine

The Dutch magazine KGK (Klei Glas Keramiek = Clay Glass Ceramics) reports the results of an extensive physical and chemical research of five clay deposits in the area between the rivers Rhine and river Meuse in the Netherlands. The chemical part involved both main and trace elements. The analysis of trace elements was carried out within the framework of an Act on the requirements for the environmental quality of soil materials in relation to, for example, the chemical composition of baked clay products. One of the things which have to be investigated in the baked product is the degree in which incorporated pollutions leach out (are extracted) under the influence of the weather, and especially under the influence of water. The analysis of one of the five deposits is represented in table 8.2. 

Table 17-1 Composition and average concentrations of chemicals in seawater and Rhine River water (Duisburg)...

Example 7.L Chemical Erosion Rate The Rhine River above Lake Constance (alpine and prealpine catchment area) averages the following composition ... 

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