Geochemical surveys baseline data

The report by Plant et al. (1996) also gives reasons why Geological Surveys or equivalent governmental institutions are particularly well suited to provide the data needed to establish systematic environmental geochemical baseline databases for Europe. 

Figure 5.13 Aluminium in stream waters from England and Wales from the Geochemical Baseline Survey of the Environment (G-BASE) project illustrating how data sets with different lower detection limits can be combined.

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