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Occurrence and distribution of microplastics in surface sediments from the Gulf of Thailand
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Researchers investigated the distribution and characteristics of microplastics in surface sediments across the Gulf of Thailand, finding an average abundance of 150.4 pieces/kg dry weight with fragment shapes dominating, and observed a correlation between sediment grain size and microplastic content. The results establish baseline contamination data for this Southeast Asian coastal region.
This study investigated the distribution and characteristics of microplastics in surface sediments of the Gulf of Thailand (GoT), and discussed the correlation between sediment grain size and microplastic content. The results indicate the abundance of microplastics is 150.4 ± 86.2 pieces/kg dry weight, representing a medium microplastic pollution level compared to other sea areas. Small microplastics (0.5-1 mm) take up >70% of total microplastic numbers. Fibrous microplastics are the dominant component of microplastics. According to micro-Fourier transform infrared spectroscopy, rayon (37%) and polyester (PES: 16%) are the most typical polymer types found in sediments. The results imply that secondary microplastics are the dominant pollutant, while fibrous microplastics are mainly from municipal sewage discharge. We also find that inconspicuous correlation between grain size and microplastics, which is caused by the multi-sources and different flow field. This study deepens our understanding of the environmental risks posed by microplastics to marine ecosystems in the GoT.
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Contamination and characterization of microplastics in different sediments of the inner Gulf of Thailand
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Microplastic contamination was surveyed in surface sediments across the inner Gulf of Thailand, finding widespread pollution throughout the study area with average concentrations reported for the first time in this region. The results add to the global picture of microplastic accumulation in tropical coastal sediments.
Type and Distribution of Microplastic Contamination in Beach Sediment Along the Coast of the Lower Gulf of Thailand
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Microplastic contamination was surveyed at five beaches along Thailand's lower Gulf Coast, with Talo Kapo showing the highest abundance and fragment-type particles being most common. The findings document baseline plastic pollution levels and polymer types across different coastal settings.
Contamination and characterization of microplastics in different sediments of the river estuaries (the inner Gulf of Thailand)
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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.
Microplastics on beaches along the eastern Gulf of Thailand – A preliminary study
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Researchers quantified microplastics at the high-tide line of 21 beaches along the eastern Gulf of Thailand, finding highly variable contamination levels ranging from 420 to over 200,000 particles per kilogram of sand.
Spatial heterogeneity distributions and seasonal variations of microplastic contaminations in surface waters and sediments and microplastic pollution level assessments of the inner Gulf of Thailand
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Researchers measured microplastic concentrations in both surface water and sediment across the inner Gulf of Thailand in dry and wet seasons, finding widespread contamination influenced by river discharge and oceanographic conditions. The study provides a baseline for monitoring microplastic pollution levels in this heavily used coastal area.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.