Cemaran Mikroplastik pada Spons Air Tawar di Muara Sungai Brantas, Kali Porong, Mojokerto, Jawa Timur

Samudra, Danang (2024) Cemaran Mikroplastik pada Spons Air Tawar di Muara Sungai Brantas, Kali Porong, Mojokerto, Jawa Timur. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 5005201093-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2026. Download (3MB) | Request a copy

Abstract

Mikroplastik adalah partikel padat sintetis dengan kisaran ukuran >1 μm hingga <5 mm. Mikroplastik menjadi perhatian global karena keberadaannya di berbagai ekosistem dan kecenderungannya untuk memberikan dampak negatif pada organisme, termasuk spons. Spons dapat mengakumulasi mikroplastik ke dalam tubuhnya karena memiliki feeding habit berupa filter feeder. Penelitian ini bertujuan untuk menganalisis karakteristik fisik dan kimia serta kelimpahan mikroplastik pada spons air tawar di Kali Porong, Mojokerto, Jawa Timur. Spons Eunapius carteri dan Oncosclera asiatica beserta sampel air dan sedimen diambil dari Kali Porong pada kedalaman sekitar ±1 meter. Analisis karakteristik fisik (ukuran, warna, dan bentuk) dilakukan dengan menggunakan mikroskop stereo dan bantuan Optilab. Analisis karakteristik kimia (jenis polimer) dilakukan dengan menggunakan Raman Spectroscopy (off-resonance) dengan panjang gelombang eksitasi 785 nm. Kelimpahan mikroplastik dari 2 lokasi sampel air (AEC dan AOA) dan sedimen (SEC dan SOA) di Kali Porong, didapatkan rata-ratanya sebanyak 2640 partikel/L pada sampel AEC dan AOA serta 1060 partikel/kg pada sampel SEC dan SOA. Ukuran mikroplastik pada sampel air didominasi pada rentang 20 – 40 µm pada sampel AEC dan AOA, sedangkan pada sampel sedimen didominasi pada rentang 100 – 500 µm pada sampel SEC dan rentang 0 – 20 µm pada sampel SOA. Warna mikroplastik yang mendominasi pada lokasi 1 dan lokasi 2, baik pada sampel air maupun sedimen adalah warna hitam dengan bentuk fragmen. Tipe polimer yang mendominasi pada mikroplastik sampel air dan sedimen masing-masing adalah polyethylene (PE) dan polypropylene (PP). Pada spons air tawar, rata-rata kelimpahan mikropalstik pada Eunapius carteri sebanyak 5280 partikel/kg, sedangkan pada Oncosclera asiatica sebanyak 2840 partikel/kg. Karakter fisik yang mendominasi pada kedua spesies adalah mikroplastik dengan ukuran rentang 0 – 20 µm, berwarna hitam, dan berbentuk fragmen. Tipe polimer yang teridentifikasi pada sampel spons adalah polyethylene (PE).
===================================================================================================================================
Microplastics are synthetic solid particles with a size range of >1 μm to <5 mm. Microplastics are of global concern due to their presence in various ecosystems and their tendency to negatively impact organisms, including sponges. Sponges can accumulate microplastics into their bodies because they have a feeding habit in the form of filter feeders. This study aims to analyze the physical and chemical characteristics and abundance of microplastics in freshwater sponges in Porong River, Mojokerto, East Java. Eunapius carteri and Oncosclera asiatica sponges along with water and sediment samples were taken from Porong River at a depth of about ± 1 meter. Analysis of physical characteristics (size, color, and shape) was conducted using a stereo microscope and Optilab. Analysis of chemical characteristics (polymer type) was conducted using Raman Spectroscopy (off-resonance) with an excitation wavelength of 785 nm. The abundance of microplastics from 2 locations of water (AEC and AOA) and sediment (SEC and SOA) samples in Kali Porong, obtained an average of 2640 particles/L in samples AEC and AOA and 1060 particles/kg in samples SEC and SOA. The size of microplastics in water samples is dominated in the range of 20 - 40 µm in samples AEC and AOA, while in sediment samples it is dominated in the range of 100 - 500 µm in sample SEC and the range of 0 - 20 µm in sample SOA. The color of microplastics that dominate at location 1 and location 2, both in water and sediment samples is black with fragments. The polymer types that dominated in the microplastic of water and sediment samples were polyethylene (PE) and polypropylene (PP), respectively. In freshwater sponges, the average abundance of microplastics in Eunapius carteri was 5280 particles/kg, while in Oncosclera asiatica it was 2840 particles/kg. The physical characteristics that dominate in both species are microplastics with a size range of 0-20 µm, black in color, and in the form of fragments. The type of polymer identified in the sponge sample is polyethylene (PE).

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Kali Porong, Karakter Fisik, Mikroplastik, Spons Tawar, Tipe Polimer, Freshwater Sponges, Microplastic, Physical Characteristic, Polymer Type, Porong River
Subjects:	Q Science > QH Biology > QH301 Biology Q Science > QH Biology > QH541 Ecology Q Science > QL Zoology T Technology > TD Environmental technology. Sanitary engineering > TD427.P62 Microplastics--Environmental aspects.
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Biology > 46201-(S1) Undergraduate Thesis
Depositing User:	Danang Samudra
Date Deposited:	17 Jul 2024 01:51
Last Modified:	17 Jul 2024 01:51
URI:	http://repository.its.ac.id/id/eprint/108371

Actions (login required)

View Item