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Title: Multivariate analysis and spatial distribution of suspended particulate metals of Abakaliki and Enugu in Southeastern Nigeria
Authors: Ichu, Bright Chigozie
Participants: Opara, Alexander Iheanyichukwu
Ejike, Emmanuel Nnamdi
Nkwoada, Amarachi Udoka
Ibe, Francis Chizoruo
Dioha, Emmanuel Chuka
Issue Date: 2021
Series/Report no.: Bulletin of the National Research Centre, Volume 44 (2021), Article number: 159
Abstract: Results of the study showed that Zn concentration levels were not significant at all the sampling points, while the concentrations of Pb particulate matter which ranged from 0.11 to 0.91 µg/m3 exceeded the international revised EPA Pb standard of 0.15 µg/m3 but within the approved Federal Ministry of Environment (FMEnv) Nigeria, 24 h long duration of 1 µg/m3, and National Ambient Air Quality Standard (NAAQS) 1 h duration (1 µg/m3). The enrichment factor (EF) showed that Pb had a dominant crustal source, while Zn was determined to be of minor to moderate crust enrichment. The multivariate analysis carried out using principal component analysis (PCA) based on varimax rotation and Hierarchical Cluster Analysis (HCA) plotted in biplot and dendrogram diagrams revealed the levels of dependency and grouping, whereas Pearson’s Correlation Coefficient (PC) revealed a strong link between the two metallic pollutants.
ISSN: 2522-8307
Appears in Collections:Tài liệu mở




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