Case Study of the Relationship between Aqua Regia and Real Total Contents of Harmful Trace Elements in Some European Soils
Figure 1
Degree of extractability of As, Ba, Co, Cr, Cu, Mn, Ni, Pb, V, and Zn as the percentage of aqua regia from real total contents in soils of different European countries The Netherlands, Switzerland, Spain, Lithuania, Belarus, Estonia, Finland, (8) Germany, (9) Latvia, (10) Norway, (11) Poland, (12) Russia, (13) and Sweden. Soil samples from The Netherlands, Switzerland, and Spain were analysed by participants of WEPAL ISE program; while from other 10 countries in the following laboratories, WDXRF analysis was performed at BGR, Hannover; HF extraction and analysis by ICP-MS—at GTK’s Espoo Geolaboratory, aqua regia extraction and analysis by AAS and ICP-AES—at GTK’s Rovaniemi Geolaboratory [15].
