Tingkat Pencemaran Perairan Berdasarkan Parameter Bahan Organik Dan Jumlah Ba…

ABSTRACT This research was conducted in March 2020 at the Dumai River Estuary, Dumai City, Riau Province. The purpose of this study was to analyze the parameters of OT, BOD5 and TOM in the Dumai River Estuary; analyzing E. coli bacteria in the Dumai River Estuary and Determining the Level of Water Pollution Based on the Content of Organic Material Parameters and E. coli in the Dumai River …