Identifikasi Kandungan Mikroplastikpada Sedimen di Sungai Metro

Rahmah, Aulia and Prof. Dr. Ir. Bambang Suharto,, MS and Dr. Eng. Evi Kurniati,, STP, MT (2021) Identifikasi Kandungan Mikroplastikpada Sedimen di Sungai Metro. Sarjana thesis, Universitas Brawijaya.

Abstract

Salah satu jenis sampah yang mendominasi adalah plastik. Plastik merupakan bahan polimer sintesis yang dibuat melalui proses polimerisasi. Banyaknya kegiatan manusia yang melibatkan penggunaan plastik dalam berbagai macam jenis produk yang murah serta multifungsi, membuat keberadaan plastik semakin meningkat. Mikroplastik merupakan partikel plastik yang diameternya berukuran kurang dari 5 mm. Ukurannya yang sangat kecil tidak sengaja dapat termakan oleh biota air. Sungai Metro merupakan basin block daerah aliran sungai Brantas Daerah Aliran Sungai (DAS) Brantas hulu. Sungai Metro menjadi sumber air bagi kegiatan masyarakat. Banyaknya aktivitas di sekitar sungai ini, akan meningkatkan jumlah sampah plastik dan apabila terbuang ke badan air akan berpotensi mengurai sampah plastik menjadi potongan-potongan kecil (mikroplastik). Tujuan penelitian ini yaitu mengetahui keberadaan, jenis, dan kelimpahan mikroplastik yang terdapat pada sedimen di Sungai Metro, serta mengetahui sebaran pencemaran mikroplastik terhadap keberadaan mikroplastik yang terdapat pada sedimen di Sungai Metro. Sampel yang diambil sebanyak tiga sampel di tiga titik dan masing-masing sampel dilakukan pengulangan sebanyak tiga kali. Saringan yang digunakan yaitu saringan nilon berukuran 420 μm, 250 μm, dan 177 μm. Analisa mikroplastik pada penelitian ini menggunakan mikroskop Olympus SZX16. Hasil penelitian yang dilakukan membuktikan adanya kandungan mikroplastik pada Sungai Metro. Ditemukan beberapa tipe mikroplastik yaitu fiber dengan jumlah paling dominan sebesar 75% , fragment 21%, dan film dengan jumlah paling sedikit hanya sebanyak 4%. Sedangkan warna mikroplastik yang ditemukan adalah hitam yang merupakan warna paling dominan dengan persentase sebesar 53,01%, bening 33,12%, kuning 7,49%, orange 1,92%, biru 1,67%, merah 1,50%, dan hijau merupakan warna paling sedikit ditemukan persentasenya hanya sebesar 1,29%. Pada ukuran saringan nilon yang digunakan, ukuran 177 μm memiliki jumlah mikroplatik tertinggi yaitu 55%, ukuran saringan 250 μm menyaring partikel mikroplastik sebanyak 26,6%, dan ukuran saringan nilon 420 μm merupakan saringan nilon dengan jumlah mikroplastik paling sedikit yang tersaring yaitu sebanyak 17,7% partikel. Kelimpahan mikroplastik paling tinggi berdasarkan hasil penelitian ditemukan pada titik tiga atau bagian hilir dari Sungai Metro

English Abstract

One type of waste that dominates is plastic. Plastic is a synthetic polymer material made through a polymerization process. The number of human activities that involve the use of plastics in various types of cheap and multifunctional products, makes the presence of plastics increasing. Microplastics are plastic particles with a diameter of less than 5 mm. Its very small size can accidentally be eaten by aquatic biota. The Metro River is a basin block for the Brantas river basin and the upstream Brantas watershed. The Metro River is a source of water for community activities. The number of activities around this river will increase the amount of plastic waste and if it is thrown into water bodies, it will have the potential to break down plastic waste into small pieces (microplastics). The purpose of this study was to determine the presence, type, and abundance of microplastics found in sediments in the Metro River, and to determine the distribution of microplastic pollution on the presence of microplastics found in sediments in the Metro River. Three samples were taken at three points and each sample was repeated three times. The filters used were nylon sieves measuring 420 m, 250 m, and 177 m. Microplastic analysis in this study used an Olympus SZX16 microscope. The results of the research conducted proved the presence of microplastic content in the Metro River. Several types of microplastics were found, namely fiber with the most dominant amount of 75%, fragments of 21%, and film with the least amount of only 4%. While the color of microplastics found was black which was the most dominant color with a percentage of 53.01%, clear 33.12%, yellow 7.49%, orange 1.92%, blue 1.67%, red 1.50%, and green is the color with the least percentage found at only 1.29%. In the size of the nylon filter used, the size of 177 m had the highest number of microplastics, namely 55%, the filter size of 250 m filtered out microplastic particles as much as 26.6%, and the size of the nylon filter 420 m was the nylon filter with the least number of microplastics filtered, which was 17.7% particles. The highest abundance of microplastics based on research results was found at point three or the downstream part of the Metro River

Item Type:	Thesis (Sarjana)
Identification Number:	0521100319
Uncontrolled Keywords:	Mikroplastik, Sungai Metro , Sedimen,Microplastic, Metro River, Sediment
Subjects:	600 Technology (Applied sciences) > 630 Agriculture and related technologies
Divisions:	Fakultas Teknologi Pertanian > Keteknikan Pertanian
Depositing User:	Sugeng Moelyono
Date Deposited:	18 Feb 2022 06:24
Last Modified:	14 Oct 2024 07:18
URI:	http://repository.ub.ac.id/id/eprint/189839

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