Kajian Status Pencemaran Sungai Batang Gangsal Indragiri Provinsi Riau

Along the banks of the Batang Gangsal River there are many tributaries and ditches which have a major influence on the entry of pollutant sources from various activities in the mainland, activities carried out by the community are agricultural activities, coal mining and C excavation, land clearing and industries that dump their waste into the waters. rivers and domestic waste from anthrop…