1. Division
of Geochemistry and Laboratories, Czech Geological Survey, Geologicka
6, 152 00 Prague
5, Czech Republic
2. U.S. Geological
Survey, Menlo Park, California 94025, United States
3. AQD-envitest,
s
r.o., Vitezna 3, 702 00 Ostrava, Czech Republic
4. AECOM, Rocky Hill, Connecticut 06067, United States