A preliminary study of water quality index in Terengganu River basin, Malaysia

S. Suratman, M. I. Mohd Sailan, Y. Y. Hee, E. A. Bedurus, Mohd Talib Latif

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The Malaysian Department of Environment-Water Quality Index (DOE-WQI) was determined for the Terengganu River basin which is located at the coastal water of the southern South China Sea between July and October 2008. Monthly samplings were carried out at ten sampling stations within the basin. Six parameters listed in DOE-WQI were measured based on standard methods: pH, dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS) and ammonical nitrogen (AN). The results indicated the impact of various anthropogenic activities which contribute to high values of BOD, COD, TSS and AN at middle and downstream stations, as compared with the upstream of the basin. The reverses were true for the pH and DO values. The DOE-WQI ranged from 71.5-94.6% (mean 86.9%), which corresponded to a classification status range from slightly polluted to clean. With respect to the Malaysia National Water Quality Standards (NWQS), the level of most of the parameters measured remained at Class I which is suitable for the sustainable conservation of the natural environment, for water supply without treatment and as well as for very sensitive aquatic species. It is suggested that monitoring should be carried out continuously for proper management of this river basin.

Original languageEnglish
Pages (from-to)67-73
Number of pages7
JournalSains Malaysiana
Volume44
Issue number1
Publication statusPublished - 1 Jan 2015

Fingerprint

river basin
water quality
biochemical oxygen demand
chemical oxygen demand
dissolved oxygen
nitrogen
sampling
basin
coastal water
human activity
water supply
index
monitoring
parameter
station

Keywords

  • Anthropogenic activities
  • Department of Environment-Water Quality Index
  • National Water Quality Standards
  • Southern waters of South China Sea (Malaysia)
  • Terengganu River basin

ASJC Scopus subject areas

  • General

Cite this

Suratman, S., Mohd Sailan, M. I., Hee, Y. Y., Bedurus, E. A., & Latif, M. T. (2015). A preliminary study of water quality index in Terengganu River basin, Malaysia. Sains Malaysiana, 44(1), 67-73.

A preliminary study of water quality index in Terengganu River basin, Malaysia. / Suratman, S.; Mohd Sailan, M. I.; Hee, Y. Y.; Bedurus, E. A.; Latif, Mohd Talib.

In: Sains Malaysiana, Vol. 44, No. 1, 01.01.2015, p. 67-73.

Research output: Contribution to journalArticle

Suratman, S, Mohd Sailan, MI, Hee, YY, Bedurus, EA & Latif, MT 2015, 'A preliminary study of water quality index in Terengganu River basin, Malaysia', Sains Malaysiana, vol. 44, no. 1, pp. 67-73.
Suratman S, Mohd Sailan MI, Hee YY, Bedurus EA, Latif MT. A preliminary study of water quality index in Terengganu River basin, Malaysia. Sains Malaysiana. 2015 Jan 1;44(1):67-73.
Suratman, S. ; Mohd Sailan, M. I. ; Hee, Y. Y. ; Bedurus, E. A. ; Latif, Mohd Talib. / A preliminary study of water quality index in Terengganu River basin, Malaysia. In: Sains Malaysiana. 2015 ; Vol. 44, No. 1. pp. 67-73.
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