Baseline concentration of microplastics in surface water and sediment of the northern branches of the Mekong River Delta, Vietnam.

Autor: Kieu-Le TC; Faculty of Geology and Petroleum Engineering, Ho Chi Minh City of Technology (HCMUT), Viet Nam; Vietnam National University Ho Chi Minh City (VNU-HCM), Viet Nam; Asian Center for Water Research (CARE), Ho Chi Minh City of Technology (HCMUT), Viet Nam., Thuong QT; Vietnam National University Ho Chi Minh City (VNU-HCM), Viet Nam; Asian Center for Water Research (CARE), Ho Chi Minh City of Technology (HCMUT), Viet Nam; Faculty of Environment and Natural Resources, Ho Chi Minh City of Technology (HCMUT), Viet Nam., Truong TN; Vietnam National University Ho Chi Minh City (VNU-HCM), Viet Nam; Asian Center for Water Research (CARE), Ho Chi Minh City of Technology (HCMUT), Viet Nam., Le TM; Vietnam National University Ho Chi Minh City (VNU-HCM), Viet Nam; Asian Center for Water Research (CARE), Ho Chi Minh City of Technology (HCMUT), Viet Nam., Tran QV; Vietnam National University Ho Chi Minh City (VNU-HCM), Viet Nam; Asian Center for Water Research (CARE), Ho Chi Minh City of Technology (HCMUT), Viet Nam., Strady E; Asian Center for Water Research (CARE), Ho Chi Minh City of Technology (HCMUT), Viet Nam; Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO, Marseille, France. Electronic address: emilie.strady@ird.fr.
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2023 Feb; Vol. 187, pp. 114605. Date of Electronic Publication: 2023 Jan 16.
DOI: 10.1016/j.marpolbul.2023.114605
Abstrakt: 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.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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