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All Journal Jurnal Pertanian Terpadu Jurnal ADAM : Jurnal Pengabdian Masyarakat Ilmu Perikanan Tropis Nusantara Jurnal Tropical Aquatic Sciences
Ghitarina Ghitarina, Ghitarina
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Education Energy Environmental Science Physics Social Sciences

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The concentration of Mn and Fe metals in water and sediment of the Sanga-Sanga River, East Kalimantan Province Larissa, Astrid Attha; Ghitarina, Ghitarina; Hamdhani, Hamdhani
Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal) Vol. 4 No. 2 (2025): Nusantara Tropical Fisheries Science
Publisher : Faculty of Fisheries and Marine Science, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/cb0p9x16

Abstract

This study aimed to analyze the concentrations of manganese (Mn) and iron (Fe) in both water and sediment samples from the Sanga-Sanga River, Kutai Kartanegara Regency, East Kalimantan Province. The research was conducted from October to December 2024 at three stations representing the upstream, midstream, and downstream sections of the river. Sampling was performed using a purposive method based on site characteristics, and analyses were carried out both in situ and at the Water Quality Laboratory, Faculty of Fisheries and Marine Science, Mulawarman University. The concentrations of Mn and Fe were compared with the Indonesian river water quality standard (Government Regulation No. 22 of 2021) and sediment quality guidelines established by the Australian and New Zealand Environment and Conservation Council (ANZECC, 2000). The results showed that Mn concentrations in river water ranged from 0.325 to 1.181 mg/L, exceeding the permissible limit of 0.1 mg/L, while Fe concentrations ranged from 0.3475 to 0.468 mg/L, surpassing the standard of 0.3 mg/L. In sediments, Mn concentrations ranged from 42.38 to 964.47 mg/kg and Fe concentrations from 11,341.23 to 50,344.72 mg/kg, with several stations exceeding the ANZECC guideline limits. Higher concentrations were generally found at midstream and downstream stations, particularly in areas influenced by coal mining, barge transport, and ship repair activities. These findings indicate that the Sanga-Sanga River has experienced notable contamination by Mn and Fe, primarily due to anthropogenic activities related to coal industry operations. Continuous monitoring, stricter waste management, and the implementation of pollution control measures are recommended to prevent further environmental degradation and protect aquatic ecosystems.
Co-Authors Andi Nikhlani Aritonang, Cicilia Imelda Dwi Nurdiana Eryati, Ristiana Gusti Haqiqiansyah Haliza, Syarifah Salsadilla Tamara Hamdhani, Hamdhani Henny Pagoray, Henny Kania Karnelia Komsanah Sukarti Kusumaningrum, Indriati Larissa, Astrid Attha Mangoting, Jelpratiwi Muslim, Izza Dzikriyah Mustakim, Mohammad Pajar, Zulkifli Rafii, Akhmad Suryana, Irma Udayana, Deni Wulandari Wulandari Yasser, Muhammad MF