Komposisi dan Kelimpahan Makroplastik di Hilir Sungai Cikapundung (Segmen Hulu Sungai Citarum), Bandung, Jawa Barat

Abstract

Sungai Citarum merupakan salah satu sungai di Jawa Barat yang memiliki banyak fungi bagi masyarakat. Di sisi lain, Sungai Citarum termasuk dalam salah satu sungai yang tercemar berat oleh sampah plastik. Salah satu anak sungai Citarum yaitu Sungai Cikapundung yang terletak di hulu. Penelitian ini bertujuan mengidentifikasi kelimpahan dan mengklasifikasikan makroplastik berdasarkan jenis makroplastik yang ditemukan di hulu Sungai Citarum. Pengambilan contoh dilakukan di hilir Sungai Cikapundung sebelum masuk ke Sungai Citarum pada bulan April hingga Juni 2021, dan bulan Agustus hingga November 2021. Sampel sampah plastik diidentifikasi komposisi jenis dan dihitung kelimpahannya. Uji statistik Kruskal-Wallis, RLS, Regresi, dan Korelasi digunakan untuk mengetahui beda nyata kelimpahan terhadap waktu pengamatan, dan pengaruh curah hujan terhadap kelimpahan. Kelimpahan makroplastik di hilir Sungai Cikapundung relatif sama antara pagi, siang, dan sore hari. Komposisi jenis makroplastik yang dominan di hilir Sungai Cikapundung yaitu kantung plastik bening, kemasan saset, dan kemasan dengan alumunium.

The Citarum River is one of the rivers in West Java which has many functions for the community. On the other hand, the Citarum River is one of the rivers that is heavily polluted by plastic waste. One of the tributaries of the Citarum river is the Cikapundung River which is located upstream. This research aims to identify the abundance and classify macroplastics based on the types of macroplastics found in the upper stream of the Citarum River. Sampling was carried out downstream of the Cikapundung River before entering the Citarum River from April to June 2021, and August to November 2021. Plastic waste samples were identified based on type and analyzed for abundance. Kruskal Wallis, RLS, Regression, and Correlation statistical tests were used to determine the real difference in abundance over observation time, and the effect of rainfall on abundance. The result show that the abundance of macroplastics in the downstream Cikapundung River is relatively the same between morning, afternoon and evening. The composition pf the most dominant type of macroplastic found were clear plastic bags, sachet packaging, and aluminum packaging