Penilaian kualitas air sungai pengambang kecamatan rumbai timur kota pekanbar…

Periodic assessment of river water quality is important because rivers are one of the water sources that are widely used by humans to meet their needs. Human activities in the watershed encourage a decrease in river water quality starting from household activities, plantations, and so on can produce waste that can adversely affect and pollute the river. National Sanitation Foundation-Water Qual…