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All Journal Ilmu Perikanan Tropis Nusantara ABDIKU : Jurnal Pengabdian Masyarakat Universitas Mulawarman
Larissa, Astrid Attha
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Agriculture, Biological Sciences & Forestry Humanities Education Environmental Science Other

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Pencegahan Pencemaran Lingkungan dari Limbah Plastik dengan Pelatihan Pembuatan Ecobrick Hartati, Wahjuni; Maula, Athiyatul; Ananta, Dita Amelia; Indriyanti, Gusti; Utomo, Faisal Prasetya; Rahayu, Indah; Larissa, Astrid Attha
ABDIKU: Jurnal Pengabdian Masyarakat Universitas Mulawarman Vol. 3 No. 2 (2024): ABDIKU : Jurnal Pengabdian Masyarakat Universitas Mulawarman
Publisher : Fakultas Kehutanan dan Lingkungan Tropis, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32522/abdiku.v3i2.1622

Abstract

Adiwiyata schools are part of a program encouraging the creation of knowledge and awareness among school residents in environmental conservation. SMP Negeri 1 Sangasanga is one such school with an Adiwiyata program; however, significant plastic waste is still found around the school environment. Ecobrick represents a creative and innovative effort to address the problem of plastic waste pollution. The objectives of this activity are: 1. To raise awareness among students of SMP Negeri 1 Sangasanga about the impact of plastic pollution on the environment and the importance of sustainable plastic waste management; 2. To train students in making ecobricks as a creative solution to reduce plastic waste and transform it into a useful resource; 3. To integrate ecobrick production into school activities to foster a culture of waste management and environmental awareness among students. The methods used include socialization of ecobrick introduction, explanation of ecobrick making, and practice in assembling ecobricks into products as a form of plastic waste utilization. The results obtained from this activity show that students have gained knowledge and skills to process plastic waste into useful products through ecobrick, such as chairs
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 Ananta, Dita Amelia Ghitarina Ghitarina, Ghitarina Hamdhani, Hamdhani Indriyanti, Gusti Maula, Athiyatul Rahayu, Indah Utomo, Faisal Prasetya Wahjuni Hartati