Kandungan Mikropastik Di Wilayah Bendungan Watervang Kota Lubuklinggau Provinsi Sumatera Selatan

Rachmadiansyah, Fathullah and Rodhiyah, Zuli and Putra, Fernando Mersa (2025) Kandungan Mikropastik Di Wilayah Bendungan Watervang Kota Lubuklinggau Provinsi Sumatera Selatan. S1 thesis, UNIVERSITAS JAMBI.

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Abstract

Mikroplastik adalah partikel plastik berukuran <5 mm yang berasal dari proses degradasi atau pemecahan plastik menjadi lebih kecil. Partikel ini berpotensi mencemari lingkungan, terutama perairan, karena sifatnya yang persisten atau sulit terurai dan kemampuannya mengadsorpsi polutan beracun. Mikroplastik dapat masuk ke dalam tubuh organisme air dan berisiko menimbulkan dampak kesehatan, baik pada biota perairan maupun manusia melalui rantai makanan. Penelitian ini berfokus pada analisis keberadaan mikroplastik di perairan Bendungan Watervang, Kota Lubuklinggau, Provinsi Sumatera Selatan. Bendungan ini memiliki peran penting sebagai sumber air untuk irigasi, kebutuhan domestik masyarakat, dan sebagai objek wisata. Namun, aktivitas manusia seperti pembuangan limbah rumah tangga dan sampah plastik menyebabkan pencemaran air, termasuk mikroplastik. Pengambilan sampel dilakukan pada bulan September 2024 dimana diambil sampel dari tiga titik lokasi sampling yaitu bagian hulu, irigasi dan hilir sungai. Sampel air yang diambil adalah air sungai dengan teknik pengambilan sampel menggunakan SNI 6989.57:2008 tentang Metode Pengambilan Contoh Air Permukaan. Sampel air dilakukan analisis di Laboratorium Instrumentasi dan Tugas Akhir Fakultas Sains dan Teknologi Universitas Jambi. Sampel air di uji mengunakan FT-IR (Fourier-transform Infrared spectroscopy) di Laboratorium Pengujian Universitas Jambi. Jumlah mikroplastik yang ditemukan pada bagian hulu yaitu 46 partikel, bagian irigasi 14 partikel dan bagian irigasi 24 partikel dengan mikroplastik jenis fiber yang paling banyak ditemukan yaitu 61 partikel. Kelimpahan mikroplastik yang ditemukan pada air di Bendungan Watervang pada bagian hulu yaitu 0,46 partikel/L, bagian irigasi 0,14 partikel/L dan bagian hilir 0,24 partikel/L. Nilai indeks beban pencemaran (PLI) pada bagian hulu (3,03), bagian irgasi (1,67), dan bagian hilir (2,19). Nilai ini masuk dalam kategori rendah (<10). Hasil uji FT-IR menunjukkan jenis polimer mikroplastik yaitu Polytetrafluoroethylene (PTPE), Polystyrenne (PS), Polycarbonate (PC), dan Nylon. Jenis polimer non-mikroplastik yang ditemukan adalah Cellulose Acetate (CA). Microplastics are plastic particles measuring <5 mm which come from the process of degradation or breaking down of plastic into smaller pieces. These particles have the potential to pollute the environment, especially water, due to their persistent or difficult to decompose nature and ability to adsorb toxic pollutants. Microplastics can enter the bodies of aquatic organisms and causing health impacts, both on aquatic biota and humans through the food chain. This study focuses on the analysis of the presence of microplastics in the waters of the Watervang Dam, Lubuklinggau City, South Sumatra Province. This dam has an important role as a source of water for irrigation, domestic needs of the community, and as a tourist attraction. However, human activities such as the disposal of household waste and plastic waste cause water pollution, including microplastics. Sampling was carried out in September 2024 where samples were taken from three sampling locations, namely the upstream, irrigation and downstream parts of the river. The water samples taken were river water with a sampling technique using SNI 6989.57: 2008 concerning Surface Water Sampling Methods. Water samples were analyzed at the Instrumentation and Final Project Laboratory, Faculty of Science and Technology, University of Jambi. Water samples were tested using FT-IR (Fourier-transform Infrared spectroscopy) at the Jambi University Testing Laboratory. The number of microplastics found in the upstream section was 46 particles, the irrigation section 14 particles and the irrigation section 24 particles with the most fiber type microplastics found being 61 particles. The abundance of microplastics found in the water at the Watervang Dam in the upstream section was 0.46 particles/L, the irrigation section 0.14 particles/L and the downstream section 0.24 particles/L. The pollution load index (PLI) value in the upstream section (3,03), the irrigation section (1,67), and the downstream section (2,19). This value is included in the low category (<10). The results of the FT-IR test showed the types of microplastic polymers, namely Polytetrafluoroethylene (PTPE), Polystyrenne (PS), Polycarbonate (PC), and Nylon. The type of non-microplastic polymer found was Cellulose Acetate (CA).

Type:	Thesis (S1)
Uncontrolled Keywords:	Mikroplastik, Bendungan Watervang, Kelimpahan Mikroplastik
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering T Technology > TD Environmental technology. Sanitary engineering
Divisions:	Fakultas Teknik > Teknik Lingkungan
Depositing User:	RACHMADIANSYAH
Date Deposited:	14 May 2025 06:50
Last Modified:	14 May 2025 06:50
URI:	https://repository.unja.ac.id/id/eprint/78297

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