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Sains Malaysiana 46(9)(2017): 1513–1520
http://dx.doi.org/10.17576/jsm-2017-4609-21 The Evaluation of Spatial Variation
of Water Quality in Sungai Setiu Basin, Terengganu (Penilaian Perubahan Reruang terhadap
Kualiti Air di Lembangan Sungai Setiu, Terengganu) IZYAN
MUNIRAH M.
ZAIDEEN1, SUHAIMI SURATMAN1
& NORHAYATI MOHD TAHIR1,2* 1Institute
of Oceanography and Environment, Universiti Malaysia Terengganu,
21030 Kuala Terengganu, Terengganu Darul Iman, Malaysia 2School
of Marine Science and Environment, Universiti Malaysia Terengganu,
21030 Kuala Terengganu, Terengganu Darul Iman, Malaysia Diserahkan:
30 Mei 2016/Diterima: 24 April 2017 ABSTRACT This study investigates
the spatial variation of water quality parameters in Sungai Setiu
Basin at ten different locations from March 2010 to February 2011.
The water quality was assessed using the Water Quality Index by
Malaysian Department of Environment (DOE-WQI) and classified according to the Malaysia Interim
National Water Quality Standard (INWQS). Six water quality parameters
embedded in the DOE-WQI were dissolved oxygen (DO),
biochemical oxygen demand (BOD), chemical oxygen demand (COD),
pH, ammoniacal nitrogen (AN) and total suspended solid (TSS).
In addition, this study also examined the changes in water quality
over the past 10 years by comparing the present water quality
to the previous works. The overall mean WQI value obtained was 84.0 which indicate that the Sungai
Setiu basin is in clean condition and all measured water quality
parameters gave value within the permissible limits of the INWQS classification
except for pH which fall in Class III. It can be concluded that
water quality in Sungai Setiu does not varies greatly over a decade.
Hence continuous monitoring is needed to improve the water quality
and minimize water pollution. Keywords: DOE-WQI;
INWQS
classification; physical parameters; Sungai Setiu
basin (Malaysia) ABSTRAK Kajian ini dijalankan
untuk mengkaji variasi reruang bagi parameter kualiti air antara
sepuluh lokasi yang berbeza di lembangan Sungai Setiu bermula
pada Mac 2010 hingga Februari 2011. Kualiti air dinilai menggunakan
Indeks Kualiti Air oleh Jabatan Alam Sekitar, Malaysia (IKA-JAS) dan dikelaskan mengikut Piawaian
Interim Kualiti Air Kebangsaan, Malaysia (INWQS).
Enam parameter yang digunakan dalam IKA-JAS telah dianalisis iaitu
oksigen terlarut (DO), permintaan oksigen biokimia (BOD),
permintaan oksigen kimia (COD), pH, ammoniakal nitrogen (AN)
dan jumlah pepejal terampai (TSS). Di samping itu, kajian ini
juga menentukan perubahan kualiti air sejak 10 tahun yang lalu
melalui perbandingan dengan kajian yang terdahulu. Hasil kajian
menunjukkan bahawa nilai purata IKA yang diperoleh adalah 84.0 dan ini menunjukkan lembangan
Sungai Setiu adalah dalam keadaan bersih dan semua parameter kualiti
air yang diukur telah memberikan bacaan dalam had yang dibenarkan
mengikut pengklasifikasian INWQS kecuali nilai pH yang berada dalam
kelas III. Dapat disimpulkan bahawa kualiti air di lembangan Sungai
Setiu tidak menunjukkan perubahan yang ketara untuk tempoh sedekad.
Walau bagaimanapun, pemantauan berterusan diperlukan untuk meningkatkan
kualiti air dan mengurangkan pencemaran air. Kata kunci: IKA-JAS; lembangan Sungai Setiu (Malaysia); parameter
fizikal; pengklasifikasian INWQS RUJUKAN
Amneera,
W.A., Najib, N.W.A.Z., Mohd Yusof, S.R. & Ragunathan, S. 2013.
Water quality index of Perlis River, Malaysia. International
Journal of Civil & Environmental Engineering 13(2): 1-6.
APHA.
2012. Standard Methods for the Examination of Water and Wastewater.
Standard Methods http://doi.org/10.2105/ AJPH.51.6.940-a. p. 741.
Bharti,
N. & Katyal, D. 2011. Water quality indices used for surface
water vulnerability assessment. Journal of Environmental Sciences
2(1): 154-173. http://doi. org/10.6088/ijes.00202010017. Bordalo,
A.A., Teixeira, R. & Wiebe, W.J. 2006. A water quality index
applied to an international shared river basin: The case of the
Douro River. Environmental Management 38(6): 910- 920.
http://doi.org/10.1007/s00267-004-0037-6. Brown,
R.M., McClelland, N.I., Deininger, R.A. & Tozer, R.G. 1970.
A water quality index: Do we dare? Water Sewage Works 117(10):
339-343. Fawaz
Al-Badaii, Mohammad Shuhaimi-Othman & Muhd Barzani Gasim 2013.
Water quality assessment of the Semenyih River. Journal of
Chemistry 5: 31-34. http://doi. org/10.1155/2013/871056. Department
of Environment Malaysia (DOE). 2006. Malaysia Environmental
Quality Report. Kuala Lumpur, Malaysia. Deraman,
M.Y. 2002. Penilaian kualiti air sungai setiu berdasarkan indeks
kualiti air jabatan alam sekitar. Universiti Putra Malaysia Terengganu,
Malaysia (Unpublished). Grasshoff,
K., Kremling, K. & Ehrhardt, M. 2007. Methods of Seawater
Analysis: Third, Completely Revised and Extended Edition.
http://doi.org/10.1002/9783527613984 Jessie,
J.B. 2008. Water Quality Assesment of Setiu River Basin, Terengganu.
Thesis. Universiti Malaysia Terengganu, Malaysia (Unpublished).
Wan
Mohd Afiq, W.M.K., Abdullah, M.P., Amerudin, N.A. & Padli,
N. 2013. Physicochemical analysis on water quality status of Bertam
River in Cameron Highlands, Malaysia. Journal of Materials
and Environmental Science 4(4): 488- 495. Lescesen,
I., Pantelic, M., Dolinaj, D., Stojanovic, V. & Milosevic,
D. 2015. Statistical analysis of water quality parameters of the
Drina River (West Serbia). Polish Journal of Environmental
Studies 24(2): 555-561. http://doi.org/10.15244/pjoes/29684.
Lopes,
J.F. & Silva, C. 2006. Temporal and spatial distribution of
dissolved oxygen in the Ria de Aveiro lagoon. Ecological Modelling
197(1-2): 67-88. http://doi.org/10.1016/j. ecolmodel.2006.03.012.
Milovanovic,
M. 2007. Water quality assessment and determination of pollution
sources along the Axios/Vardar River, Southeastern Europe. Desalination
213(1-3): 159-173. http://doi.org/10.1016/j.desal.2006.06.022.
Naubi,
I., Zardari, N.H., Shirazi, S.M., Farahen, N., Ibrahim, B. &
Baloo, L. 2016. Effectiveness of water quality index for monitoring
Malaysian river water quality. Pol. J. Environ. Stud. 25(1):
231-239. http://doi.org/10.15244/pjoes/60109. Norhayati,
M., Rahim, H.M., Abas, M.R. & Rashid, M.K. 2006. Distribution
and characterization of hydrocarbons in sediments of Setiu Wetland,
Terengganu: A preliminary study. Malaysia Journal of Analytical
Sciences 10: 177-184. Pesce,
S.F. & Wunderlin, D.A. 2000. Use of water quality indices
to verify the impact of Cordoba City (Argentina) on Suquia River.
Water Research 34(11): 2915-2926. http://doi. org/10.1016/S0043-1354(00)00036-1.
Rosli,
N., Gandaseca, S., Ismail, J. & Jailan, M.I. 2010. Comparative
study of water quality at different peat swamp forest of Batang
Igan, Sibu Sarawak. American Journal of Environmental Sciences
6(5): 416-421. http://doi. org/10.3844/ajessp.2010.416.421.
Suratman,
S., Hussein, A.N.A.R., Tahir, N.M., Latif, M.T., Mostapa, R. &
Weston, K. 2016. Seasonal and spatial variability of selected
surface water quality parameters in Setiu wetland, Terengganu,
Malaysia. Sains Malaysiana 45(4): 551-558. Suratman,
S., Mohd Sailan, M.I., Hee, Y.Y., Bedurus, E.A. & Latif, M.T.
2015. Kajian awal indeks kualiti air di lembangan Sungai Terengganu,
Malaysia. Sains Malaysiana 44(1): 67-73. Suratman,
S., Hussein, A.N.A.R., Latif, M.T. & Weston, K. 2014. Reassessment
of physico-chemical water quality in Setiu Wetland, Malaysia.
Sains Malaysiana 43(8): 1127-1131. Suratman,
S. & Tahir, N. 2013. Kesan antropogenik terhadap kualiti air
di lembangan Sungai Marang, perairan selatan Laut China Selatan.
Sains Malaysiana 42(6): 743-751. Tahir,
N., Suratman, S., Siti Rosnani, J., Suhairul Nizam, Y., Norashiqin,
M. & Law, A. 2005. Penentuan indeks kualiti air dan nutrien
terlarut di Sungai Nerus, Terengganu. Malaysian Journal of
Analytical Sciences 8: 193-197. Terrado,
M., Borrell, E., Campos, S., Barceló, D. & Tauler, R. 2010.
Surface water quality indices for the analysis of data generated
by automated sampling networks. Trends in Analytical Chemistry
29: 40-52. Zulfadhli,
M.K. 2005. Kajian Indeks Kualiti Air di Lembangan Sungai Setiu,
Terengganu. Tesis. Kolej Universiti Sains dan Teknologi Malaysia,
Malaysia (Unpublished). *Pengarang untuk surat-menyurat; email: hayati@umt.edu.my
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