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Microplastic concentrations in river and reservoir environments of Dong Nai, Ho Chi Minh City, Long An and Tay Ninh provinces, Southern Vietnam. COMPOSE (2019-2021) and CounterMEASUREII (2021-2022) projects
Summary
Microplastic concentrations were measured across multiple rivers and reservoirs in southern Vietnam as part of two multi-year international projects, providing systematic data on plastic particle levels in a densely populated and industrialized region. The dataset characterizes fragment and fiber concentrations across multiple sampling periods from 2019 to 2022.
Microplastic (300-5000µm) concentrations were measured in the Tri An reservoir and Dong Nai River of Dong Nai province, Saigon River of Ho Chi Minh City, Dau Tien reservoir of Tay Ninh province and Vam Co River of Long An province, Southern Vietnam, under the COMPOSE project (2019-2021) and the CounterMEASUREII project (2021-2022). Microplastic were sampled using a 80µm mesh size net from a local boat. The samples were extracted in the laboratory using enzymatic digestion, NaCl density separation and were filtrated on GF-A filter. Then microplastic were observed on stereomicroscope and length, area, color were measured for fragments, line and circle. Concentrations are given in total microplastic per m3, fragment per m3 and fibers per m3. The sampling dates are October 2019, January 2020, May 2020, July 2020, October 2020, January 2021 and March 2021 under COMPOSE Project; October 2021 and January 2022 under the CounterMEASUREII project.