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Spatiotemporal distribution of microplastic debris in the surface beach sediment of the southeastern coast of Bangladesh
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A spatiotemporal analysis of microplastics in beach sediments across 7 coastal sites in Bangladesh found an average concentration of 242 particles per kilogram dry weight, with significant seasonal and spatial variation driven by monsoon patterns and proximity to urban areas.
This study undertakes a spatiotemporal analysis of microplastic pollution in surface beach sediments, covering 7 coastal beaches in Bangladesh and two seasons-monsoon and winter. The concentration of microplastics extracted from the surface beach sediment is 242.86 particles/kg dw. The results showed both significant seasonal (p value = 0.001) and spatial (p value = 0.004) variation. The abundance and polymer types were significantly higher (57 %) in winter than in the monsoon season (43 %). Touristic and commercial beaches showed higher levels of microplastic pollution than the non-touristic beaches. Polyethylene (28.8 %) and Polypropylene (27.6 %) were the most abundant polymer. The most dominant coloration of microplastics was white (42.6 %). The majority of the microplastics were fibers (33.5 %). Smallest particles measuring <1 mm constituted nearly half of the total microplastics load (48.5 %). This baseline data can be useful in terms of coastal zone management for the southeastern coastal beaches of Bangladesh.
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Spatiotemporal distribution of microplastic debris in the surface beach sediment of the southeastern coast of bangladesh
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Researchers assessed the spatiotemporal distribution of microplastic debris in surface beach sediments along approximately 240 kilometers of the southeastern Bangladeshi coast, sampling seven beaches from Kumira to Teknaf across monsoon and winter seasons to characterize seasonal and spatial pollution patterns.
Spatiotemporal distribution of microplastic debris in the surface beach sediment of the southeastern coast of bangladesh
AI summary Read the abstract
Researchers characterized spatiotemporal distribution of microplastic debris in beach sediments along approximately 240 kilometers of Bangladesh's southeastern coastline across seven beaches, comparing monsoon and winter seasons to assess seasonal variability. The study analyzed MP abundance, polymer type, shape, size, and color to provide the first comprehensive regional baseline for this heavily populated coastal area.
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Researchers investigated the occurrence, abundance, distribution, and risk of microplastics in beach sediments at two Bangladeshi coastal sites — Cox's Bazar and Kuakata — finding widespread contamination and raising concern about microplastic pollution in the Northern Bay of Bengal.
From beaches to mangroves: Spatiotemporal mapping and risk profiling of microplastics in coastal Bangladesh
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A comprehensive survey of microplastic contamination along the entire coastline of Bangladesh found plastic particles at all 18 sampling sites during both monsoon and winter seasons, with polypropylene, polyethylene, and polystyrene making up the majority of the material. Concentrations averaged 385–471 particles per 100 grams of sediment, and ecological risk assessments classified most sites as ranging from "danger" to "extreme danger" for marine life. Bangladesh's densely populated and heavily plastic-polluted coast represents a serious environmental hotspot requiring urgent monitoring and management.
An Integrated Spatial Assessment of Macro-, Meso-, and Microplastic Pollution Along Cox’s Bazar Beach in Bangladesh
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Researchers conducted the first comprehensive assessment of macro-, meso-, and microplastic pollution along the full coastline of Cox's Bazar in Bangladesh, sampling 23 stations across tourism, active, and less active beach zones. Plastic abundance varied significantly by zone and land use, with fragments and films as dominant types, reflecting Bangladesh's high plastic waste mismanagement rates.
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