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Evaluating Current Water Quality Monitoring System On Hau River, Mekong Delta, Vietnam Using Multivariate Statistical Techniques, Giao Thanh Nguyen
Evaluating Current Water Quality Monitoring System On Hau River, Mekong Delta, Vietnam Using Multivariate Statistical Techniques, Giao Thanh Nguyen
Applied Environmental Research
This study aims to assess the sampling sites and frequencies of sampling of the existing surface water quality monitoring on Hau River using multivariate analysis techniques. Principal Component Analysis (PCA) and Cluster Analysis (CA) were used to analyze the water quality monitoring data collected every month in 2018 from 8 sampling stations. Surface water quality parameters including pH, temperature, dissolved oxygen (DO), total suspended solids (TSS), nitrate (N-NO3-), phosphate (P-PO43-), chemical oxygen demand (COD) and coliforms were used in the PCA and CA analyses. The findings indicated that the Hau River water quality was polluted by TSS, COD and coliforms …