Pollution level in Domas coastal waters based on some water quality parameters

Abstract

The coastal area of Banten Bay has a high population and industrial growth, which can harm the aquatic environment. Domas coastal waters are one of the water areas located on the east coast of Banten Bay. This study aims to determine the water pollution level in Domas coastal waters, Banten Bay, based on water quality parameters. This study was conducted from August 2021 to January 2022 at six sites. The data were compared with the quality standards for marine biota based on Indonesian Government Regulation No. 22 of 2021, and the quality status based on the Nemerow Pollution Index according to the Decree of the Minister of Environment No. 115 of 2003. The values of each parameter during the research were temperature (29.27-29.80°C), turbidity (4.62-22.13 NTU), total suspended solid (12.72-69.07 mg L-1), pH (7), dissolved oxygen (6.32-6.63 mg L-1), salinity (30.67-31.67 ppt), ammonia (0.15-0.44 mg L-1), nitrite (0.03-0.08 mg L-1), nitrate (1.23-1.66 mg L-1), and total phosphate (0.11-0.15 mg L-1). The results of this study showed that Domas coastal waters have been indicated to be moderately polluted (5.7-5.9).