Surface and groundwater water quality assessment using multivariate analytical methods: a case study of the Western Niger Delta, Nigeria

Omoleomo Olutoyin Omo-Irabor, Samuel Bamidele Olobaniyi, Kehinde O. K. Oduyemi, Joseph C. Akunna

Research output: Contribution to journalArticle

80 Citations (Scopus)

Abstract

This study investigates the natural and anthropogenic processes that influence the chemistry of surface and groundwater within the western Niger Delta region using multivariate statistical techniques. A total of 137 surface and groundwater samples were collected between 2003 and 2007 during the rainy and dry seasons, from 15 sites and analysed for their physico-chemical constituents. The chemical data set generated were subjected to Principal Component Analysis (PCA)/Factor Analysis (FA) and Hierarchic Cluster Analysis (HCA). PCA is a procedure for reducing data redundancy, while FA establishes the general relationship among variables. CA is used to detect spatial similarity among sampling sites. The results indicate five dominant processes or factors for surface water that explained 77.11% of the variance in the data set. In groundwater, the factors account for 80.55% of the total variance. Cluster analysis revealed a random spatial distribution of the chemical components investigated. This is consistent with the multipurpose nature of land use in the study area. The multiple natural and anthropogenic sources indicated by this study, and their unsystematic distribution show that proper land use planning and firm implementation of existing environmental laws is imperative in this oil producing region, in order to have effective surface water and groundwater resource management.
Original languageEnglish
Pages (from-to) 666-673
Number of pages8
JournalPhysics and Chemistry of the Earth
Volume33
Issue number8-13
DOIs
Publication statusPublished - Jan 2008

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Niger
Nigeria
water quality
ground water
surface water
Water quality
Groundwater
analytical method
Cluster analysis
Factor analysis
Land use
factor analysis
Principal component analysis
cluster analysis
groundwater
land use
principal component analysis
principal components analysis
Surface water resources
Groundwater resources

Cite this

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title = "Surface and groundwater water quality assessment using multivariate analytical methods: a case study of the Western Niger Delta, Nigeria",
abstract = "This study investigates the natural and anthropogenic processes that influence the chemistry of surface and groundwater within the western Niger Delta region using multivariate statistical techniques. A total of 137 surface and groundwater samples were collected between 2003 and 2007 during the rainy and dry seasons, from 15 sites and analysed for their physico-chemical constituents. The chemical data set generated were subjected to Principal Component Analysis (PCA)/Factor Analysis (FA) and Hierarchic Cluster Analysis (HCA). PCA is a procedure for reducing data redundancy, while FA establishes the general relationship among variables. CA is used to detect spatial similarity among sampling sites. The results indicate five dominant processes or factors for surface water that explained 77.11{\%} of the variance in the data set. In groundwater, the factors account for 80.55{\%} of the total variance. Cluster analysis revealed a random spatial distribution of the chemical components investigated. This is consistent with the multipurpose nature of land use in the study area. The multiple natural and anthropogenic sources indicated by this study, and their unsystematic distribution show that proper land use planning and firm implementation of existing environmental laws is imperative in this oil producing region, in order to have effective surface water and groundwater resource management.",
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Surface and groundwater water quality assessment using multivariate analytical methods : a case study of the Western Niger Delta, Nigeria. / Omo-Irabor, Omoleomo Olutoyin; Olobaniyi, Samuel Bamidele; Oduyemi, Kehinde O. K.; Akunna, Joseph C.

In: Physics and Chemistry of the Earth, Vol. 33, No. 8-13, 01.2008, p. 666-673.

Research output: Contribution to journalArticle

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AB - This study investigates the natural and anthropogenic processes that influence the chemistry of surface and groundwater within the western Niger Delta region using multivariate statistical techniques. A total of 137 surface and groundwater samples were collected between 2003 and 2007 during the rainy and dry seasons, from 15 sites and analysed for their physico-chemical constituents. The chemical data set generated were subjected to Principal Component Analysis (PCA)/Factor Analysis (FA) and Hierarchic Cluster Analysis (HCA). PCA is a procedure for reducing data redundancy, while FA establishes the general relationship among variables. CA is used to detect spatial similarity among sampling sites. The results indicate five dominant processes or factors for surface water that explained 77.11% of the variance in the data set. In groundwater, the factors account for 80.55% of the total variance. Cluster analysis revealed a random spatial distribution of the chemical components investigated. This is consistent with the multipurpose nature of land use in the study area. The multiple natural and anthropogenic sources indicated by this study, and their unsystematic distribution show that proper land use planning and firm implementation of existing environmental laws is imperative in this oil producing region, in order to have effective surface water and groundwater resource management.

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