Hydrodynamic modelling of microplastics transport in Bach Dang estuary

Duc Cuong Le; Thanh Nghi Duong; Thi Lim Duong; Quoc Trinh Nguyen; Van Thao Nguyen; Dinh Cham Dao; Ba Thuy Nguyen; Van Toan Du

doi:10.15625/1859-3097/16490

Author affiliations

Authors

Le Duc Cuong Institute of Geography, VAST, Vietnam
Duong Thanh Nghi Institute of Marine Environment and Resources, VAST, Vietnam
Duong Thi Lim Institute of Geography, VAST, Vietnam
Nguyen Quoc Trinh Institute of Geography, VAST, Vietnam
Nguyen Van Thao Institute of Marine Environment and Resources, VAST, Vietnam
Dao Dinh Cham Institute of Geography, VAST, Vietnam
Nguyen Ba Thuy Vietnam National Hydro-meteorological Forecasting Center, Hanoi, Vietnam
Du Van Toan Vietnam Institute of Seas and Islands, VASI, Hanoi, Vietnam

DOI:

https://doi.org/10.15625/1859-3097/16490

Keywords:

Microplastics transport, Bach Dang estuary, Delft3D model

Abstract

In this study, the three-dimensional Delft3D-PART model was applied to study micro-plastics transport in the Bach Dang estuary. Micro-plastics as data input for the model in this study were assessed by taking water samples by 80 μm mesh size plankton net, and sediment samples by Petersen grab. The determination of input parameters for the micro-plastic transport model through averaging the particle characteristics of micro-plastics has been applied. Microplastics results appear in 10 water samples and 10 sediment samples surveyed. The results of micro-plastics in the water body of Bach Dang estuary presented that the regional tidal regime was closely related to the number of micro-plastics according to the season. In the wet season, the number of micro-plastics was around 2–3 nr/m³, spreading stronger than in the dry season.

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