Spatial and seasonal abundance and characteristics of microplastics along the Red River to the Gulf of Tonkin, Vietnam DOI Creative Commons

Thi Thao Nguyen,

Bui Van Hoi, Stéphanie Lebarillier

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 957, P. 177778 - 177778

Published: Nov. 30, 2024

This study aimed to examine the occurrence of microplastics in surface water and sediment samples collected from Hanoi Ba Lat estuary along Red River, second-largest river Vietnam (surface area: 156,451 km2). 21 stations were sampled during dry (March 2023) rainy (September seasons. The analytical procedure involved: digestion with hydrogen peroxide, flotation potassium carbonate, overflow filtration. filters analyzed by microscopy (Nikon SMZ645) describe shapes colors μ-FTIR (PerkinElmer Spotlight 400) determine polymer types abundances. Results showed that microplastic quantities throughout ranged 10 203 items.m-3 653 8069 990 21,610 items.kg-1 dried weight (d.w.) seasons, respectively. MPs classified into two main shape groups: fiber fragment, fibers being predominant, representing 82.0 % 75.5 sediment, primary identified white/transparent, black, blue. Particles between 13 200 μm predominant size class, accounting for 64.1 72.4 Polyethylene, polypropylene, polyethylene terephthalate polymers, 71.5 72.2 as revealed analyses. Overall, MP pollution load is moderate, but type particles detected represents a high dangerous risk, resulting very potential ecological risk on river.

Language: Английский

Microplastic pollution in the marine environment: Distribution factors and mitigation strategies in different oceans DOI
Shahabaldin Rezania, Saba Miri, Jinwoo Cho

et al.

Journal of Contaminant Hydrology, Journal Year: 2025, Volume and Issue: 269, P. 104496 - 104496

Published: Jan. 5, 2025

Language: Английский

Citations

1
Spatial and seasonal abundance and characteristics of microplastics along the Red River to the Gulf of Tonkin, Vietnam DOI Creative Commons

Thi Thao Nguyen,

Bui Van Hoi, Stéphanie Lebarillier

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 957, P. 177778 - 177778

Published: Nov. 30, 2024

This study aimed to examine the occurrence of microplastics in surface water and sediment samples collected from Hanoi Ba Lat estuary along Red River, second-largest river Vietnam (surface area: 156,451 km2). 21 stations were sampled during dry (March 2023) rainy (September seasons. The analytical procedure involved: digestion with hydrogen peroxide, flotation potassium carbonate, overflow filtration. filters analyzed by microscopy (Nikon SMZ645) describe shapes colors μ-FTIR (PerkinElmer Spotlight 400) determine polymer types abundances. Results showed that microplastic quantities throughout ranged 10 203 items.m-3 653 8069 990 21,610 items.kg-1 dried weight (d.w.) seasons, respectively. MPs classified into two main shape groups: fiber fragment, fibers being predominant, representing 82.0 % 75.5 sediment, primary identified white/transparent, black, blue. Particles between 13 200 μm predominant size class, accounting for 64.1 72.4 Polyethylene, polypropylene, polyethylene terephthalate polymers, 71.5 72.2 as revealed analyses. Overall, MP pollution load is moderate, but type particles detected represents a high dangerous risk, resulting very potential ecological risk on river.

Language: Английский

Citations

1