Water quality assesment of Pengambang River, Pekanbaru City, Riau Province, Indonesia using pollution index (PI)
River water quality monitoring must be carried out because rivers are a source of fresh water for the community.Tributaries in the city of Pekanbaru Girls Onepiece Swimsuit receive waste from domestic activities, industry, livestock, and agricultural runoff, reducing river water quality.The pollution index is one of the most effective tools for inf