VARIATION OF MICROBIAL POLLUTION (SF AND CF) IN WATER RIVERS OF TIRANA AND SHKODRA

During 2006-2010 years, ten sampling station in Kiri, Drini, Tirana and Lana rivers are taken in order to estimate the pollution level from SF and CF. All the station are choose in way to have unpolluted samples, that means before pollution and polluted ones in down streams or samples polluted by urban charges. The selection of monitoring stations is based on monitoring scheme of liquid discharges. In that scheme collector is considered the source of pollution to receiving surface waters. The samples are taken at the collector and also in distance 500 to 1000 m from point of discharge after mixing and dilution with receiving waters. Faecal Coliforms/E.coli and Faecal Streptococci/Enterococci are detected via Multiple-Tube Fermentation Technique or Most Probable Numbers (MPN) technique.The analysis of samples shows a high pollution level in Tirana and Lana rivers during all the year seasons, particularly during the summer and autumn season. Water of Tirana and Lana rivers results most polluted, respectively at level of 104-107 for faecal coliforms and 103-105 for faecal streptococci. Drini and Kiri are less pollution.