Monthly variation of some physico-chemical and microbiological parameters in Biga Stream (Biga, Canakkale, Turkey)

Abstract

Water samples were collected from three different sites of the Biga Stream (Canakkale, Turkey) in the months of October 2007 – September 2008 for the analyzing of some physico-chemical and microbiological parameters of the stream. In the present investigation, the mean average value (mean ±SD) of the stream temperature, dissolved oxygen (DO), biochemical oxygen demand (BOD5), pH, electrical conductivity (EC), total coliform (TC) and faecal coliform (FC) were noted as 15.533 ± 0.199oC,8.332 ± 0.253 mg/L, 136.60 ± 2.51 mg/L, 7.5078 ± 0.0427, 869.93 ± 3.72 ìS/cm, 39381 ± 7952 MPN/100 mL and 42500 ± 7072 MPN/100 mL, respectively. Based on results of comparison of data with WPCR, it is seen that waters of Biga Stream at the sites 1, 2 and 3 belonged to Class 4, for parameter BOD5 and faecal coliform and belonged to Class 3 for parameter total coliform. We conclude that there is a great potential risk of infection of waters from the Biga Stream.