The study was conducted to evaluate the relationship of coliforms and physico-chemical parameters such as biological oxygen demand (BOD), conductivity, dissolved oxygen (DO), nitrate, pH, phosphate, salinity, temperature, total dissolved solids (TDS) and total suspended solids (TSS) from the water samples taken from Buhisan, Bulacao and Lahug rivers in Cebu Philippines . Monthly sampling was conducted from November 2011 to April 2012 to cover the rainy and dry seasons from three established stations namely upstream, midstream and downstream in each river. The methods for the examination of water and wastewater (APHA AWWA WEF 2005) and the multiple tube fermentation technique (MTFT) were employed for the analyses of the physico-chemical parameters and coliforms respectively. Of the physicochemical parameters tested, BOD, conductivity, DO, nitrate, phosphate, salinity and TDS showed a significant correlation with FC and TC (p≤0.05). The high levels of organic pollutants combined with the presence of coliforms could be related to an accumulation of waste along the river stretch, the lack of wastewater treatment plants and the high impact of human activities across the river networks
WALIA journal 32(S1): 28-30, 2016
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