Pollutant Index Method in Analyzing The Water Quality of The Cimeta River, West Java, Bandung Regency

Abstract

Cimeta River is a tributary of the Citarum River in West Bandung Regency. The pollution of the Citarum River causes various diseases suffered by people living around the river, such as nervous system disorders due to heavy metals, skin diseases, and infections. The Cimeta watershed covers 29 villages, this will affect the increase in domestic land use along with the increase in population which will cause an increase in domestic waste and can reduce the quality of the Cimeta Rivers. The purpose of this study is to analyze the water quality of the Cimeta River and determine the water quality using the Index Pollutant method. The results of the study are preliminary data to determine efforts to control pollution of the Cimeta River. Based on the results of the study, the quality of the Cimeta River is categorized as heavily polluted in the upstream, middle, and downstream parts, A total of 18 parameters were tested and 7 parameters did not meet quality standards based on Government Regulation Number 22 of 2021. Parameters that do not meet quality standards are TSS, BOD5, COD, Nitrite, Free Chlorine, Detergents such as MBAS, and Sulfide. The highest Cimeta River Pollutant Index is in the middle, which is 14.1, in the downstream 13.3, and in the upstream 12.8. Based on the results of the study, it is necessary to manage water pollution based on the sector that contributes the most to the pollution that occurs in this river. Keywords: river, pollutant index, wastewater