Assessment on Water Quality and Trace Metal Concentrations of an Urban Lake in Kuching Reservoir Park

A study of the water quality and trace metal concentrations of an urban lake in Kuching Reservoir Park (or known as Taman Budaya) was conducted for three months, from October 2014 to December 2014. Four sampling stations were selected to represent the open water body in the lake. A total of 16 wate...

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Main Author:	Diana Chendai, Ngadan
Format:	Thesis
Language:	English
Published:	2015
Subjects:	GE Environmental Sciences Q Science (General)
Online Access:	http://ir.unimas.my/id/eprint/9409/1/Diana%20Chendai%20Ngadan%20ft.pdf
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spelling	my-unimas-ir.94092023-05-11T07:48:36Z Assessment on Water Quality and Trace Metal Concentrations of an Urban Lake in Kuching Reservoir Park 2015 Diana Chendai, Ngadan GE Environmental Sciences Q Science (General) A study of the water quality and trace metal concentrations of an urban lake in Kuching Reservoir Park (or known as Taman Budaya) was conducted for three months, from October 2014 to December 2014. Four sampling stations were selected to represent the open water body in the lake. A total of 16 water quality parameters and 5 trace metals were measured and compared as stipulated in the Malaysian Department of Environment - Water Quality Index (DOE-WQI). In addition, classification according to the Interim National Water Quality Standard (INWQS) was applied. With respect to INWQS, the mean values of physical and chemical variables were temperature: 29.76±0.29 oC; pH: 7.69±0.22; dissolved oxygen (DO): 5.07±0.39 mg/L; total suspended solids (TSS): 204±167.68 mg/L; total dissolved solids (TDS): 84.78±7.47 mg/L; turbidity: 53.8±12.10 NTU; biological oxygen demand (BOD): 1.13 ±0.20 mg/L; chemical oxygen demand (COD): 21.5±0.20 mg/L; nitrite: 0.09±0.02 mg/L; nitrate: 1.0 ±0.28 mg/L; and ammoniacal-nitrogen (AN): 0.05±0.02 mg/L were within the normal range of Class IIB for recreational purposes with an exception of concentration in the lake. Whereas trace metals concentrations were in decreasing order: zinc>manganese>lead>chromium>arsenic. Results showed that based on Malaysian WQI, the lake water status in Kuching Reservoir Park is classified as Class III with the mean value of 65.30, which is considered as moderate water quality. Recommended best management practices (BMPs) are phosphorus removal by using alum as the chemical precipitant, lake flushing and aeration by the adaptation of floating fountain. Three aspects of lake management involving the public’s participation and awareness, institutional cooperation between DBKU as the main authority and research institutions as well as better enforcement by the legislative were crucially emphasized. University Malaysia Sarawak, UNIMAS 2015 Thesis http://ir.unimas.my/id/eprint/9409/ http://ir.unimas.my/id/eprint/9409/1/Diana%20Chendai%20Ngadan%20ft.pdf text en validuser masters University Malaysia Sarawak, UNIMAS Faculty of Resource Science and Technology
institution	Universiti Malaysia Sarawak
collection	UNIMAS Institutional Repository
language	English
topic	GE Environmental Sciences Q Science (General)
spellingShingle	GE Environmental Sciences Q Science (General) Diana Chendai, Ngadan Assessment on Water Quality and Trace Metal Concentrations of an Urban Lake in Kuching Reservoir Park
description	A study of the water quality and trace metal concentrations of an urban lake in Kuching Reservoir Park (or known as Taman Budaya) was conducted for three months, from October 2014 to December 2014. Four sampling stations were selected to represent the open water body in the lake. A total of 16 water quality parameters and 5 trace metals were measured and compared as stipulated in the Malaysian Department of Environment - Water Quality Index (DOE-WQI). In addition, classification according to the Interim National Water Quality Standard (INWQS) was applied. With respect to INWQS, the mean values of physical and chemical variables were temperature: 29.76±0.29 oC; pH: 7.69±0.22; dissolved oxygen (DO): 5.07±0.39 mg/L; total suspended solids (TSS): 204±167.68 mg/L; total dissolved solids (TDS): 84.78±7.47 mg/L; turbidity: 53.8±12.10 NTU; biological oxygen demand (BOD): 1.13 ±0.20 mg/L; chemical oxygen demand (COD): 21.5±0.20 mg/L; nitrite: 0.09±0.02 mg/L; nitrate: 1.0 ±0.28 mg/L; and ammoniacal-nitrogen (AN): 0.05±0.02 mg/L were within the normal range of Class IIB for recreational purposes with an exception of concentration in the lake. Whereas trace metals concentrations were in decreasing order: zinc>manganese>lead>chromium>arsenic. Results showed that based on Malaysian WQI, the lake water status in Kuching Reservoir Park is classified as Class III with the mean value of 65.30, which is considered as moderate water quality. Recommended best management practices (BMPs) are phosphorus removal by using alum as the chemical precipitant, lake flushing and aeration by the adaptation of floating fountain. Three aspects of lake management involving the public’s participation and awareness, institutional cooperation between DBKU as the main authority and research institutions as well as better enforcement by the legislative were crucially emphasized.
format	Thesis
qualification_level	Master's degree
author	Diana Chendai, Ngadan
author_facet	Diana Chendai, Ngadan
author_sort	Diana Chendai, Ngadan
title	Assessment on Water Quality and Trace Metal Concentrations of an Urban Lake in Kuching Reservoir Park
title_short	Assessment on Water Quality and Trace Metal Concentrations of an Urban Lake in Kuching Reservoir Park
title_full	Assessment on Water Quality and Trace Metal Concentrations of an Urban Lake in Kuching Reservoir Park
title_fullStr	Assessment on Water Quality and Trace Metal Concentrations of an Urban Lake in Kuching Reservoir Park
title_full_unstemmed	Assessment on Water Quality and Trace Metal Concentrations of an Urban Lake in Kuching Reservoir Park
title_sort	assessment on water quality and trace metal concentrations of an urban lake in kuching reservoir park
granting_institution	University Malaysia Sarawak, UNIMAS
granting_department	Faculty of Resource Science and Technology
publishDate	2015
url	http://ir.unimas.my/id/eprint/9409/1/Diana%20Chendai%20Ngadan%20ft.pdf
_version_	1783728058460536832

Assessment on Water Quality and Trace Metal Concentrations of an Urban Lake in Kuching Reservoir Park

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