The distribution, characteristics, and potential impacts of microplastics in sediments from two tourist beaches along the northern Bay of Bengal
Journal of Soils and Sediments2025
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M.T.H. Bhuiyan,
Partho Banik,
Md. Maheen Mahmud Bappy,
M. Belal Hossain,
M. Belal Hossain,
M. Belal Hossain,
M. Belal Hossain,
M. Belal Hossain,
M. Belal Hossain,
M. Belal Hossain,
Bilal Ahamad Paray,
Bilal Ahamad Paray,
As-Ad Ujjaman Nur,
Partho Banik,
Partho Banik,
Bilal Ahamad Paray,
Partho Banik,
Bilal Ahamad Paray,
M. Belal Hossain,
M. Belal Hossain,
M. Belal Hossain,
Partho Banik,
Partho Banik,
Jimmy C. Yu,
M. Belal Hossain,
M. Belal Hossain,
Partho Banik,
M. Belal Hossain,
Md. Mofizur Rahman,
M. Belal Hossain,
Md. Mofizur Rahman,
M. Belal Hossain,
Jimmy C. Yu,
Partho Banik,
Md. Maheen Mahmud Bappy,
M. Belal Hossain,
As-Ad Ujjaman Nur,
As-Ad Ujjaman Nur,
As-Ad Ujjaman Nur,
Partho Banik,
Partho Banik,
Partho Banik,
Partho Banik,
As-Ad Ujjaman Nur,
As-Ad Ujjaman Nur,
As-Ad Ujjaman Nur,
M.T.H. Bhuiyan,
Partho Banik,
As-Ad Ujjaman Nur,
Partho Banik,
As-Ad Ujjaman Nur,
As-Ad Ujjaman Nur,
Partho Banik,
Partho Banik,
Partho Banik,
Partho Banik,
Partho Banik,
Partho Banik,
M. Belal Hossain,
Partho Banik,
Partho Banik,
Bilal Ahamad Paray,
Partho Banik,
Bilal Ahamad Paray,
As-Ad Ujjaman Nur,
Partho Banik,
Partho Banik,
Partho Banik,
Partho Banik,
Partho Banik,
As-Ad Ujjaman Nur,
Partho Banik,
Partho Banik,
Partho Banik,
Partho Banik,
Partho Banik,
Takaomi Arai
As-Ad Ujjaman Nur,
As-Ad Ujjaman Nur,
Takaomi Arai
Bilal Ahamad Paray,
Takaomi Arai
Partho Banik,
Bilal Ahamad Paray,
As-Ad Ujjaman Nur,
Partho Banik,
Partho Banik,
Bilal Ahamad Paray,
Takaomi Arai
Takaomi Arai
Md. Maheen Mahmud Bappy,
Takaomi Arai
As-Ad Ujjaman Nur,
As-Ad Ujjaman Nur,
As-Ad Ujjaman Nur,
Jimmy C. Yu,
Jimmy C. Yu,
Bilal Ahamad Paray,
Bilal Ahamad Paray,
Bilal Ahamad Paray,
Bilal Ahamad Paray,
Bilal Ahamad Paray,
Bilal Ahamad Paray,
Bilal Ahamad Paray,
Takaomi Arai
Takaomi Arai
Takaomi Arai
Bilal Ahamad Paray,
M. Belal Hossain,
M. Belal Hossain,
Takaomi Arai
Bilal Ahamad Paray,
Takaomi Arai
Jimmy C. Yu,
Takaomi Arai
Bilal Ahamad Paray,
Bilal Ahamad Paray,
Partho Banik,
Takaomi Arai
Partho Banik,
Bilal Ahamad Paray,
Takaomi Arai
Takaomi Arai
Takaomi Arai
Jimmy C. Yu,
Takaomi Arai
Bilal Ahamad Paray,
Jimmy C. Yu,
Jimmy C. Yu,
Takaomi Arai
M.T.H. Bhuiyan,
Bilal Ahamad Paray,
M. Belal Hossain,
M. Belal Hossain,
Bilal Ahamad Paray,
M. Belal Hossain,
M. Belal Hossain,
M. Belal Hossain,
Jimmy C. Yu,
Jimmy C. Yu,
Bilal Ahamad Paray,
Bilal Ahamad Paray,
Bilal Ahamad Paray,
Takaomi Arai
Takaomi Arai
Takaomi Arai
Bilal Ahamad Paray,
Bilal Ahamad Paray,
M. Belal Hossain,
M. Belal Hossain,
M. Belal Hossain,
M. Belal Hossain,
M. Belal Hossain,
M. Belal Hossain,
Takaomi Arai
Takaomi Arai
Md. Maheen Mahmud Bappy,
Jimmy C. Yu,
M. Belal Hossain,
Takaomi Arai
Takaomi Arai
M. Belal Hossain,
Jimmy C. Yu,
Takaomi Arai
Takaomi Arai
Takaomi Arai
M. Belal Hossain,
Takaomi Arai
Summary
This study characterized microplastic contamination in sediments from two popular tourist beaches along the northern Bay of Bengal in Bangladesh, finding between 56 and 137 microplastic items per kilogram at both sites. Fibers and foam dominated, polyethylene was the most common polymer, and most particles were under 0.5 mm. The results point to tourism, industrial discharge, fishing, and river runoff as the main local sources, and provide the first baseline contamination data for this coastal region.
Abstract Purpose This study aimed to investigate the presence, morpho-polymer characteristics, and potential ecological impacts of microplastics (MPs) in sediment samples from two popular tourist beaches along the northern Bay of Bengal. MP contamination is a rising issue in Bangladesh coastal waters, given its dense population, extensive plastic manufacturing, and a lack of waste processing facilities. Materials and methods Sediment samples were collected from two tourist beaches. Microplastics were identified, quantified, and categorized by type, size, shape, and color. Statistical analyses were performed to compare microplastic abundance between the two sites. Polymer composition was analyzed using Fourier-transform infrared spectroscopy (FTIR). Multivariate analyses were used to identify potential sources of contamination. Results and discussion Microplastic abundance ranged from 55.83 ± 10.10 to 116.67 ± 11.27 items kg⁻¹ at Patenga beach and 60.00 ± 6.61 to 135.83 ± 12.58 items kg⁻¹ at Parki beach. Fibers dominated Patenga beach (68.71%), while foam was prevalent at Parki beach (48.97%). Most microplastics were < 0.5 mm, filamentous, and transparent (Patenga) or white (Parki). Polyethylene (33.33%) was the most common polymer. Morpho-polymer characteristics and statistical analyses indicated the sources of MPs were linked to tourism, industrial waste, river discharge, and fishing activities. Conclusions This study revealed moderate microplastic pollution at the study beaches, offering baseline data for the northeastern Bay of Bengal. The findings highlighted that targeted waste management policies are urgently needed to reduce coastal microplastic contamination.