Spatial and temporal assessment of Titiwangsa Lake water quality using chemometrics analysis

Hafizan Juahir, Adiana Ghazali, Azimah Ismail, Mahadzirah Mohamad, Firdaus Mohamad Hamzah, Sunardi Sudianto, Mohd Lokman Mohd Lasim, Mohamed Aidi Shahriz, Rahmah Elfithri

Research output: Contribution to journalArticle

Abstract

Titiwangsa Lake is a renowned recreational lake in Kuala Lumpur, Malaysia. The present study was purposely to define the current status of Titiwangsa Lake water quality and propose a water quality monitoring program to conserve and sustain the health of this lake. Samples were collected in January 2017 during the day and night-time periods. Spatial classification using hierarchical agglomerative cluster analysis (HACA) has clustered the sampling stations into low, medium and high contaminated areas. Temporal classification of discriminant analysis (DA) forward stepwise mode has highlighted DO, chlorophylla and E-coli are the significant variables. They showed a lower range of data during the day-time period compared to night-time period. DA backward stepwise model showed significant variables of total suspended solid (TSS) and total phosphate (TP) were higher in concentration during the day-time period as compared to night-time period. The significant of varimax factors (VFs) in the principal component analysis (PCA) might contribute by the landscaping, small-scale domestic wastewater, urban stormwater and land erosion. In a nutshell, based on HACA classification, samples can be collected at only three stations represent each cluster during the next water quality monitoring activities as this could reduce the time and cost of sampling and sample analysis.

Original languageEnglish
Pages (from-to)20-25
Number of pages6
JournalInternational Journal of Engineering and Technology(UAE)
Volume7
Issue number3.14 Special Issue 14
Publication statusPublished - 1 Jan 2018

Fingerprint

Water Quality
Lakes
Water quality
Cluster analysis
Discriminant analysis
Sampling
Discriminant Analysis
Monitoring
Cluster Analysis
Principal component analysis
Escherichia coli
Erosion
Phosphates
Wastewater
Health
Malaysia
Waste Water
Principal Component Analysis
Costs
Costs and Cost Analysis

Keywords

  • Discriminant analysis
  • Hierarchical agglomerative cluster analysis
  • Malaysia
  • Principal component analysis
  • Titiwangsa Lake
  • Water quality

ASJC Scopus subject areas

  • Biotechnology
  • Computer Science (miscellaneous)
  • Environmental Engineering
  • Chemical Engineering(all)
  • Engineering(all)
  • Hardware and Architecture

Cite this

Spatial and temporal assessment of Titiwangsa Lake water quality using chemometrics analysis. / Juahir, Hafizan; Ghazali, Adiana; Ismail, Azimah; Mohamad, Mahadzirah; Mohamad Hamzah, Firdaus; Sudianto, Sunardi; Lasim, Mohd Lokman Mohd; Shahriz, Mohamed Aidi; Elfithri, Rahmah.

In: International Journal of Engineering and Technology(UAE), Vol. 7, No. 3.14 Special Issue 14, 01.01.2018, p. 20-25.

Research output: Contribution to journalArticle

Juahir, H, Ghazali, A, Ismail, A, Mohamad, M, Mohamad Hamzah, F, Sudianto, S, Lasim, MLM, Shahriz, MA & Elfithri, R 2018, 'Spatial and temporal assessment of Titiwangsa Lake water quality using chemometrics analysis', International Journal of Engineering and Technology(UAE), vol. 7, no. 3.14 Special Issue 14, pp. 20-25.
Juahir, Hafizan ; Ghazali, Adiana ; Ismail, Azimah ; Mohamad, Mahadzirah ; Mohamad Hamzah, Firdaus ; Sudianto, Sunardi ; Lasim, Mohd Lokman Mohd ; Shahriz, Mohamed Aidi ; Elfithri, Rahmah. / Spatial and temporal assessment of Titiwangsa Lake water quality using chemometrics analysis. In: International Journal of Engineering and Technology(UAE). 2018 ; Vol. 7, No. 3.14 Special Issue 14. pp. 20-25.
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