Spatial Distribution of Potential Pollution Load Point Source of Bedadung River Segment In The Urban Area Segment

Abstract

Land use influences the water quality of rivers. The variety of community activities in urban areas and a poor domestic sewage system are thought to affect the water quality of the Bedadung River, Jember Regency, Indonesia. Point source pollution is the dominant cause of degradation in the quality of the water in the Bedadung River, as identified by dissolved oxygen (DO) and Biochemical Oxygen Demand (BOD). This study was conducted to determine the potential point source pollution load of the Bedadung River in an urban area using land use information and pollution load-BOD data. All data were combined and processed using a Geographical Information System (GIS). The data were analyzed and plotted on a map depicting the distribution of potential point source pollutant loads in the Bedadung River urban area segment in Jember Regency. The results of the land use analysis in the urban area segment show that paddy fields accounted for 18.97% of the total study area, with fields at 5.98%, gardens at 12.85%, and rivers at 12.25%, while settlements covered the largest land area, on 49.96%. The results for the potential point source pollution load show that Kaliwates village had the highest potential pollution load value, at 13.966 kg/day. The lowest was Antirogo village, at 0.004 kg/day, while the total point source pollution load was 36.31 kg/day. An evaluation of point source pollution impact isrequired to control river pollution in urban areas, namely the development of communal Waste Water Treatment Plant (WWTP) in urban area segments.