[1] Univ Latvia, Dept Environm Sci, LV-1004 Riga, Latvia
[2] Polish Acad Sci, Mineral & Energy Econ Res Inst, PL-31261 Krakow, Poland
[3] Assoc Balt Coasts, LV-1003 Riga, Latvia
[4] Univ Latvia, Dept Analyt Chem, LV-1004 Riga, Latvia
[5] Univ Latvia, Dept Geol, LV-1004 Riga, Latvia
[6] Latvia Univ Life Sci & Technol, Lab Forest & Water Resources, LV-3001 Jelgava, Latvia
[7] Estonian Univ Life Sci, Chair Rural Bldg & Water Management, EE-51014 Tartu, Estonia
[8] Sci & Tech Res Ctr Arid Reg CRSTRA, Biskra 07000, Algeria
[9] Univ Malakand, Dept Biochem, Chakdara 18800, Khyber Pakhtunk, Pakistan