[1] Natl Res Inst, Dept Chem Biol & Aerosol Hazards, Cent Inst Labour Protect, 16 Czerniakowska St, PL-00701 Warsaw, Poland
[2] Latvian State Inst Wood Chem, Polymer Lab, 27 Dzerbenes St, LV-1006 Riga, Latvia
[3] Riga Tech Univ, Inst Mat & Struct, 6b Kipsalas St, LV-1048 Riga, Latvia
[4] Warsaw Univ Technol, Fac Mat Sci & Engn, PL-02507 Warsaw, Poland