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Preliminary study on microplastic abundance in mangrove sediment cores at Mae Klong River, upper Gulf of Thailand
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Researchers conducted a preliminary study on microplastic abundance in mangrove sediment cores collected from the Mae Klong River mouth and a shoreline park in Thailand. The study found microplastics throughout the sediment cores, with fibers and fragments being the most common types, indicating that mangrove ecosystems are accumulating microplastic pollution over time.
Microplastics have polluted our environment, particularly mangrove ecosystems, the barriers between land and sea that trap sediments and pollutants. The abundance of microplastics has increased in microplastic deposition and is expected to rise in the future. In this study, mangrove sediment cores were collected from the Mae Klong River mouth and Queen Sirikit Park (shoreline), Samut Songkhram province. The microplastics were analyzed using a modified flotation method, then recasted and removed organic matter. Fiber microplastics is composed of 92% and 82% of the total microplastics that found in the Mae Klong River mouth and Queen Sirikit Park, respectively. There were significant changes in the abundance of microplastics in relation to the sediment particle size ( p < 0.05). The difference in location between the Queen Sirikit Park and Mae Klong River mouth sites was significant ( p < 0.01). The accumulation of microplastics in the sediments was influenced by grain size and location. The polymer types of microplastics were those normally used in textiles, indicating human activity. Moreover, micro-Fourier transform infrared (µ-FTIR) spectroscopy analysis identified compounds of other small particles, including tire rubber, pigment, paint, dyes, and flame retardant. These results imply that microplastics and microparticles have polluted the mangrove sediment in the Mae Klong River basin, which is an important fishery area in the upper Gulf of Thailand.
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The Occurrence of Microplastics in Sediment Cores from Two Mangrove Areas in Southern Thailand
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Microplastics were found in sediment cores from two mangrove areas in southern Thailand, with concentrations and polymer types reflecting inputs from both terrestrial and marine sources. The study documents mangrove sediments as accumulation zones for microplastics and highlights the potential threat to these ecologically sensitive coastal ecosystems.
Microplastic Contamination in the Coastal Environment: A Case Study from the Mae Klong Estuary, Samut Songkhram
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Researchers analyzed microplastic contamination in mangrove sediments from two sites in the Mae Klong Estuary in Thailand, finding average concentrations of 580 items/kg in the Mae Klong River and 1,690 items/kg in the Klong Khon Canal. The study linked higher microplastic concentrations in the canal to lower sediment transport energy in tidal flat environments that promote deposition of fine grains and plastic particles.
Microplastics in mangrove sediments at Maeklong river mouth, Samut Songkhram province
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This study investigated microplastic abundance in mangrove sediments at the Maeklong River mouth in Samut Songkhram Province, Thailand, finding an average of 580 particles per kilogram in surface sediments. Microplastic concentrations decreased with distance from the river mouth and with sediment depth, reflecting the influence of river flow and grain size on particle accumulation.
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Researchers measured microplastic contamination in river estuary sediments in the inner Gulf of Thailand, finding widespread contamination at all sites. The study characterizes the types and abundance of microplastics in a highly trafficked coastal region of Southeast Asia.
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Researchers profiled microplastic abundance with depth in sediment cores from the Kuala Gula Mangrove in Malaysia, finding 25-130 items per kg dry weight and highest concentrations near rivermouth sites, demonstrating that mangrove sediments are significant microplastic sinks.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.