Effect of human activity on water quality of Perlis River

Abstract

The project that had been handled is ‘Effect of Human Activities on Water Quality of Perlis River’. This study conducted to observe the effect of anthropogenic on Perlis River water quality. The study focused on determination and classification according an INWQS for water quality index (WQI) parameters such as BOD, COD, TSS, NH3N, DO and pH at 6 sampling point, marked as SP. Sampling of water samples were made from December 2009 until January 2010 according to APHA method, Spectrophotometry method and Nessler method. From analysis, the value of parameter at 6 sampling points are ranges from 7.02 to 7.77 for pH, 1.20 mg/L to 3.74 for NH3N, 2.73 mg/L to 5.69 mg/L for DO, 34.33 mg/L to 227.17 mg/L for COD, 3.46 mg/L to 6.86 mg/L for BOD, and 191.00 mg/L to 386.33 mg/L for TSS. From these values, it shows that water quality of Perlis River is polluted and the values exceed the level of INWQS.