Kieu-Le T. C. auteur aut IRD Thuong Q. T. auteur aut IRD Truong T. N. S. auteur aut IRD Le T. M. T. auteur aut IRD Tran Q. V. auteur aut IRD Strady Emilie auteur aut IRD text journalArticle eng text/pdf born digital access The Mekong River Delta in Vietnam, is concerned by numerous microplastic-related issues such as a lack of wastewater treatment facilities and mismanagement of plastic waste released from agriculture, aquaculture and related activities. This study aimed to examine the presence of microplastics in surface water and sediment by collecting samples from six sites along the Tien River and its distributaries in February 2019. The results showed that the average concentration of microplastics over the entire area was 53.8 +/- 140.7 items m(-3) in surface water and 6.0 +/- 2.0 items g(-1) dried weight in sediment, with a predominance of microplastic fibres rather than fragments, respectively 85 % and 98 % in surface water and sediment. In the main flow of surface water, the concentration of microplastics was stable; however, in the sediment, microplastic concentration was affected by the high dynamic flow regime rather than the sources where microplastics are released. specialized Tien River Ham Luong River Co Chien River Microplastics Mekong River Delta VIET NAM 038 020 187 114605 [12 ] 2023 0025-326X https://www.documentation.ird.fr/hor/fdi:010087409 10.1016/j.marpolbul.2023.114605 0025-326X [F B010087409] https://www.documentation.ird.fr/hor/fdi:010087409 https://www.documentation.ird.fr/intranet/publi/2023-04/010087409.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2023-04-14 2025-02-24 fdi:010087409 fre