Title of article :
Penilaian Indeks Kualiti Air di Lembangan Sungai Ibai, Terengganu
Author/Authors :
SURATMAN, SUHAIMI Kolej Universiti Sains dan Teknologi Malaysia (KUSTEM) - Fakulti Sains dan Teknologi - Jabatan Sains Kimia , Jabatan Sains Kejuruteraan, Malaysia , ALI, ASMADI Kolej Universiti Sains dan Teknologi Malaysia (KUSTEM) - Fakulti Sains dan Teknologi - Jabatan Sains Kejuruteraan, Malaysia , TING, LO TING Kolej Universiti Sains dan Teknologi Malaysia (KUSTEM) - Fakulti Sains dan Teknologi - Jabatan Sains Kejuruteraan, Malaysia
Abstract :
Water quality determination based on Water Quality Index-Department of Environment (wQI) has been carried out at Ibai River basin, Terengganu from August until December 2003. Samplings have been carried out four times at six sampling stations. Parameters measured were pH, dissolved oxygen, biological oxygen demand, chemical oxygen demand, total suspended solids and ammonia. Results from the study showed that the average values of WQI at each sampling station were in the range of65.0-85.4% with the upstream stations showed better water quality compared to the downstreamstations. Overall, the average value of WQI for Ibai River basin was 74.4% with the status of slightly polluted. Data obtained were also compared with the classification based on Interim National Water Quality Standards (INWQS) for Malaysia.
Keywords :
Water Quality index , Sungai Ibai
