| The main objective of this study is to assess the monitoring system of surface water quality in Can Tho using Principal Component Analysis (PCA) and Cluster Analysis (CA). Water samples were monthly collected in 2020 at 35 sampling sites and then analyzed for 18 parameters including temperature, pH, turbidity, dissolved oxygen (DO), biological oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS), ammonium (NH4+-N), nitrate (NO3ˉ-N), nitrite (NO2ˉ-N), orthophosphate (PO43ˉ-P), chromium (Cr), fluoride (F-), arsenic (As), lead (Pb), mercury (Hg) and coliform. These values were compared with the national technical regulation on surface water quality and calculated water quality index (WQI). The findings indicated that surface water... |
