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Pregled bibliografske jedinice broj: 604503

Distribution and chemical speciation of arsenic and heavy metals in highly contaminated waters used for health care purposes (Srebrenica, Bosnia and Herzegovina)


Lenoble, Veronique; Omanović, Dario; Garnier, Cedric; Mounier, Stephane; Đonlagić, Nusreta; Le Poupon, Christophe; Pižeta, Ivanka
Distribution and chemical speciation of arsenic and heavy metals in highly contaminated waters used for health care purposes (Srebrenica, Bosnia and Herzegovina) // Science of the total environment, 443 (2013), 420-428 doi:10.1016/j.scitotenv.2012.10.002 (međunarodna recenzija, članak, znanstveni)


Naslov
Distribution and chemical speciation of arsenic and heavy metals in highly contaminated waters used for health care purposes (Srebrenica, Bosnia and Herzegovina)

Autori
Lenoble, Veronique ; Omanović, Dario ; Garnier, Cedric ; Mounier, Stephane ; Đonlagić, Nusreta ; Le Poupon, Christophe ; Pižeta, Ivanka

Izvornik
Science of the total environment (0048-9697) 443 (2013); 420-428

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Arsenic; metal speciation; mineral waters; medicinal uses; water pollution

Sažetak
Determination of distribution and chemical speciation of arsenic and heavy metals in five acidic springs and in the receiving river near Srebrenica (Bosnia and Herzegovina) was carried out. These waters were used for centuries, and continue to be used, for health-care purposes. The composition and properties of all springs and the river water (after all inputs) resembled that of an acid mine drainage. Very low pH (b3.3), high sulphate concentration and extremely high contents of most of the measured elements (25) are found in all springs (e.g. arsenic and iron maximal concentration of 6.6 and 500 mg L^−1, respectively). Although of small discharge, spring waters caused the decrease of the receiving river pH (from 7.3 to 3.4) and the considerable increase of the concentrations of elements. The enrichment factor for the studied elements ranged from 1.2 for Sr up to 425 for As. In acidic spring waters, all elements were predominantly present in dissolved form. Elements associated to freshly- formed hydrous ferric oxide were prevailing in particulate forms only at the two most upstream sites in the river with pH>7. Geochemical speciation modelling (PHREEQC and WHAM-VI) revealed that As was mainly present as As(V), and Fe as Fe(III). Complexation of dissolved metals by organic matter was predicted to be significant only for the two river sites with neutral pH.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Kemija



POVEZANOST RADA


Projekt / tema
098-0982934-2720 - MEĐUDJELOVANJA OBLIKA TRAGOVA METALA U VODENOM OKOLIŠU (Ivanka Pižeta, )

Ustanove
Institut "Ruđer Bošković", Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


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