Profile of Seawater Quality in Cirebon, Northern Coast of West Java, Indonesia Diyah Fatimah Oktaviani (a*), Prastyo Abi Widyananto (a), Mochamad Riam Badriana (a), Ashadi Arifin Nur (a), Chung Kyun Jeon (a, b), Ivonne Milichristi Radjawane (a, c), Han San Park (a,b)
(a) Korea-Indonesia Marine Technology Cooperation Research Center (MTCRC), Cirebon Center, Indonesia
* E-mail: diyahdfo[at]mtcrc.center
(b) Korea Institute of Ocean Science and Technology, Busan, Korea
(c) Faculty of Earth Science and Technology, Bandung Institute of Technology, Bandung, Indonesia
Abstract
Cirebon is a coastal area where the economic activities of some people rely on water conditions. Besides that, the city is known to have an industrial area. Therefore, along with the rapid development of industrializations and urbanizations, it will also affect the quality of the environment, especially coastal waters. Assessing the profile of water quality could be the approach to knowing the environmental conditions. This research was aimed to understanding the current coastal condition based on the physical-chemical properties in Cirebon seawater. The data was collected using CTD and nutrient auto analyzer. Several parameters were collected namely temperature, pH, dissolved oxygen (DO), chlorophyll, nitrite (NO2), nitrate (NO3), ammonia (NH4), phosphate (PO4) and silicate (SiO2) from 11 points of survey area. The results showed that several parameters were similar in all stations, while some had different values between stations. Nutrients enrichment and chlorophyll are found to be higher in particular areas. The highest NO2 content found in station 10 (0.005 mg/L), NO3 in station 7 (0.343 mg/L), PO4 in station 1 (0.087 mg/L), SiO2 in station 6 (1.281 mg/L) and chlorophyll in station 11 (2.12 ug/L). The average concentration was relatively found to be high in the station near the coastal area compared to the open sea. This can happen due to supply of organic substances into the coastal waters from the rivers that are being carried away by the current.
Keywords: Nutrients, Composition, Cirebon, Seawater Quality, Chlorophyll
