[1] Tech Univ Ostrava, Ostrava, Czech Republic
[2] Charles Univ Prague, Fac Med 1, Dept Occupat Med, Prague, Czech Republic
[3] AS CR, Inst Chem Proc Fundamentals, Prague, Czech Republic
[4] AS CR, J Heyrovsky Inst Phys Chem, Prague, Czech Republic
[5] Inst Chem Technol, Prague, Czech Republic