The Content of Polycyclic Aromatic Hydrocarbons (PAHs) in the Brackish Water, Sediments, and Medaka Fish (Oryzias sp) of Citarum Irrigation System, Pakis Jaya, Karawang, Indonesia

Fifteen priority polycyclic aromatic hydrocarbons (PAHs) were determined in the sediments and brackish water of Citarum Irrigation System (CIS), Pakis Jaya, Karawang Regency. The samples were analysed with liquid-liquid extraction for brackish water, soxhlet extraction for sediments, and Oryzias fish. As a part of bioindicator development to recognize pollutants with small fish of the genus Oryzias, this study was conducted to assess the baseline status of PAHs distribution and sources in seawater, sediments, and Oryzias fish. The ecological risk of PAHs in sediments was also evaluated. Concentrations of fifteen USEPA PAH based on GCMS analysis in seawater, sediments, and Oryzias fish vary from 1782 to 2386.88 ng/L, 113 to 405 ng/g, and 5.39-16.47 ng/g, respectively. Based on the diagnostic ratio of PAH compounds, the potential sources of PAHs originated mainly from pyrogenic sources. The status of sediment from this Oryzias fish habitat was considered to be low polluted with PAHs.