Daily apportionment of stranded plastic debris in the Bintan Coastal area, Indonesia

Agung Dhamar Syakti (1, 2) , Maxime Jacob (3) , Timothee Birrien (3) , Mario Putra Suhana (1) , Muhammad Yudistira Aziz (4) , Agus Salim (5) , Pierre Doumenq (6) , Guy Louarn (3)

1 Raja Ali Haji Maritime University
2 Jenderal Soedirman University
3 IMN - Institut des Matériaux Jean Rouxel
4 Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung
5 Jakarta Islamic State University
6 LCE - Laboratoire Chimie de l'environnement

This study aims to provide a baseline report of the apportionment of stranded plastic debris (macro) in Bintan Island beaches. Their quantity and composition were assessed during a 45-day survey demonstrating the occurrence of the 3378 plastic fragments, which were, in decreasing order, constituted by LDPE (22.9%), PS (19.5%), PP (16.6%), PET (10.4%), HDPE (9.2%), PVC (7.2%), PU (4.9%), polyester (4.7%), polyamide (4.3%), and styrene/butadiene (0.3%). The abundance ranged from 1.2 to 4.7 items/m2. Additional apportionment ranged from 0.03 to 0.15 items/m2 per day with an arithmetic mean of 0.09 ± 0.05 items/m2 per day, mainly related to domestic waste influenced by hydrodynamic action such as longshore current and wind dynamics. Furthermore, we suggested mitigation measures focused on local action to address the plastic debris problem in Bintan beaches, which are typical of the coasts of small islands in Indonesia.

Mots clés: Plastic litters; Coastal contamination; Macroplastics; Microplastics; Marine environment

Domaines: Biodiversité et Ecologie; Océanographie

Agung Dhamar Syakti, Maxime Jacob, Timothee Birrien, Mario Putra Suhana, Muhammad Yudistira Aziz, et al.. Daily apportionment of stranded plastic debris in the Bintan Coastal area, Indonesia. Marine Pollution Bulletin, 2019, 149, pp.110609. ⟨10.1016/j.marpolbul.2019.110609⟩. ⟨hal-02438184⟩