Identifikasi Jenis dan Kepadatan Mikroplastik pada Sedimen di Hutan Mangrove Pantai Sei Tuan Indah Kabupaten Deli Serdang

Abstract

Sei Tuan Indah Beach is an area that has mangrove forests and is located in Deli Serdang Regency which is used as a tourist attraction, fishing activity, aquaculture and also a settlement for the local community. The existence of this activity is thought to be an indication of plastic waste contamination and results in microplastic contamination that accumulates in the sediment. The purpose of this study was to find out the types of microplastics and how the density of microplastics has polluted the sediments in the Sei Tuan Indah Beach Mangrove Forest. This research was conducted in August - September 2022 using a purposive sampling method. Sampling was carried out based on three depths, namely 10-30 cm. Then the sample preparation stage was carried out to determine the type of microplastic in the sediment and calculate its density. Four types of microplastics were found consisting of fragments, films, fibers and foam. The highest microplastic density was at station II (1353 items/m3), station I (912 items/m3 ) and the lowest at station III (578 items/m 3). The highest microplastic density in the Pantai Sei Tuan Indah Mangrove Forest was found at a depth of 30 cm and plot 1 .