Organic Pollutants in Surface Waters of Erseka Region, Albania

In this paper are presented concentrations of organochlorine pesticides, polychlorinated biphenyls (PCB), polycyclic aromatic hydrocarbons (PAH) and BTEX – benzene, toluene, ethylbenzene and xylenes in surface water samples of Erseka region, Albania. Erseka region is situated in South-East of Albania. Water samples were taken in December 2017 in different steams that flowing from Gramozi Mountain. These steams are part of water basin for Devolli and Osumi rivers. Liquid-liquid extraction was used for extracting organochlorine pesticides, PCBs and PAHs from water samples. Clean-up procedure was realized in an “open” florisil column for chlorinated pollutants. Analysis of pesticides and PCBs were realized in HP 6890 Series II, gas chromatograph equipped with μECD detector. For separation of organochlorine pesticides and PCB markers was used Rtx-5 capillary column. Analysis of PAH and BTEX were realized in Varian 450 GC, gas chromatograph equipped with FID detector and VF-1ms capillary column. BTEX were analyzed using HS-SPME method. The highest levels of organochlorine pollutants in surface waters of Erseka region was found for organochlorine pesticides because of their previous uses in agricultural areas near these streams. Volatile PCBs were found in higher concentrations because of their atmospheric origin. PAH and BTEX were found only for 20% of water samples. Their concentration could be because of natural origin or some mechanical business that discharge their wastes directly in these steams. Found levels were lower than previous studies for other water basin areas in Albania.

Keywords:

Organoclorined pesticides; PCBs; PAH; BTEX; water samples; GC/ECD/FID,

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Como E., Nuro A., Murtajn B., Marku E., Emiri A. (2013): Study of Some Organic Pollutants in Water Samples of Shkumbini River”, International Journal of Ecosystems and Ecology Sciences (IJEES), Vol 8, Issue 4; 573-579
Çullaj A., Hasko A., Miho A., Schanz F., Brandl H., Bachofen R., (2005): Overview on Albanian natural waters and the human impact. Environment International 31(1):133-146
Directive 2008/105/Ec Of The European Parliament And Of The Council on environmental quality standards in the field of water policy, amending and subsequently repealing Council Directives 82/176/EEC, 83/513/EEC, 84/156/EEC, 84/491/EEC, 86/280/EEC and amending Directive 2000/60/EC of the European Parliament and of the Council
EU (2007) “Guidance Document On Pesticide Residue Analytical Methods”, (ENV/JM/ ENV/JM/MONO (2007;17)
Gustafson E., Dickhut M., (1997): Distribution of polycyclic aromatic hydrocarbons in southern Chesapeake Bay surface water: evaluation of three methods for determining freely dissolved water concentrations. Environment Toxicology Chemistry 16, 452–461
Konstantinou I.K., Hela D. G., Albanis T. A. (2006) The status of pesticide pollution in surface waters (rivers and lakes) of Greece. Part I. Review on occurrence and levels, Environmental Pollution, 141, 3, 555–570
Lekkas Th., Kolokythas G., Nikolaou A., Kostopoulou M., Kotrikla A., Gatidou G., Thomaidis N.S., Golfinopoulos S., Makri C. (2004) Evaluation of the pollution of the surface waters of Greece from the priority compounds of List II, 76/464/EEC Directive, and other toxic compounds, Environ. Int., 30, 995–1007
Menendéz J C F, Sánchez L. F, Uría J E S, Martínez E F, Sanz-Medel A. (2000): Static headspace, solid-phase microextraction and headspace solid-phase microextraction for BTEX determination in aqueous samples by gas chromatography. Anal Chim Acta; p. 415:9-20
Nuro A., Marku E., Murtaj B. (2014): Determination of PAH and BTEX levels in water sampling using GC/FID technique. Case study: Patoku Lagoon, Int. J. Ecosyst. & Ecol. Sci. (IJEES) 4(2), 195-200.
Vryzas Z, Vassiliou, G., Alexoudis C., Papadopoulou-Mourkidou E. (2009) Spatial and temporal distribution of pesticide residues in surface waters in northeastern Greece, Water Research, Volume 43, Issue 1, Pp. 1–10
Wells DE, Hess P, (2000): Determination and evaluation of chlorinated biphenyls. In: Barceló E (2007) Sample handling and trace analysis of pollutants, techniques, applications and quality assurance. Elsevier, Amsterdam; pp:239–285