Electronic Theses and Dissertation

ABSTRAK

Penelitian ini bertujuan untuk mengidentifikasi ada atau tidak mikroplastik, menghitung kelimpahan mikroplastik, menentukan bentuk mikroplastik dan jenis mikroplastik pada sampel air, sedimen di Perairan Kota Banda. Penelitian ini terdiri dari beberapa tahap yaitu: Preparasi sampel, pemisahan/flotasi, dan destruksi/pemisahan bahan organik. Mikroplastik dikarakterisasi menggunakan Mikroskop Binokuler, dan Fourier Transform Infrared Spectroscopy (FTIR). Hasil karakterisasi Mikroskop binokuler menunjukkan bahwa kelimpahan mikroplastik pada sampel air yang paling tinggi ditemukan yaitu di Perairan Alue Naga sebanyak 1,35 partikel/L sedangkan kelimpahan yang paling rendah yaitu di Perairan Lampulo sebanyak 0,65 partikel/L dan kelimpahan mikroplastik pada sampel sedimen paling tinggi ditemukan di Perairan Lampulo yaitu sebanyak 440 partikel/Kg sedangkan kelimpahan yang paling rendah yaitu di Perairan Alue Naga sebanyak 220 partikel/Kg. Hasil karakterisasi menggunakan FTIR menunjukkan bahwa jenis mikroplastik yang paling dominan ditemukan adalah polyethylene terephthalate (PET). Hasil karakterisasi menggunakan Mikroskop menunjukkan bahwa mikroplastik yang paling dominan ditemukan pada sampel air dan sedimen yaitu dalam bentuk fragment dan fiber, hal ini menunjukkan bahwa perairan Kota Banda Aceh telah terkontaminasi dengan mikroplastik.

Kata Kunci :Mikroplastik, FTIR, Mikroskop, dan polyethylene terephthalate (PET)

ABSTRACT This study aims to identify the presence or absence of microplastics, calculate the abundance of microplastics, determine the form of microplastics and types of microplastics in water and sediment samples in Banda City waters. This research consisted of several stages: sample preparation, separation/flotation, and destruction/separation of organic matter. Microplastics were characterized using a binocular microscope and Fourier Transform Infrared Spectroscopy (FTIR). The results of the binocular microscopy characterization showed that the highest abundance of microplastics in water samples was found, namely in Alue Naga Waters as much as 1.35 particles/L while the lowest abundance was in Lampulo Waters as many as 0.65 particles/L and the abundance of microplastics in the sediment samples The highest abundance was found in Lampulo Waters, namely as many as 440 particles/Kg, while the lowest abundance was in Alue Naga Waters, as many as 220 particles/Kg. The results of the characterization using FTIR showed that the most dominant type of microplastic found was polyethylene terephthalate (PET). The results of characterization using a microscope show that the most dominant microplastics are found in water and sediment samples, namely in the form of fragments and fibers, this indicates that the waters of Banda Aceh City have been contaminated with microplastics. Keywords: Microplastic, FTIR, Microscope and polyethylene terephthalate (PET)