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61,005 resultsShowing papers similar to Microplastic Contamination in the Coastal Environment: A Case Study from the Mae Klong Estuary, Samut Songkhram
ClearPreliminary study on microplastic abundance in mangrove sediment cores at Mae Klong River, upper Gulf of Thailand
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.
Contamination and characterization of microplastics in different sediments of the river estuaries (the inner Gulf of Thailand)
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.
The Occurrence of Microplastics in Sediment Cores from Two Mangrove Areas in Southern Thailand
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.
Abundance and distribution of microplastics in tropical estuarine mangrove areas around Penang, Malaysia
This study documented microplastic pollution in tropical mangrove estuaries around Penang, Malaysia, finding thousands of plastic particles in both water and sediment samples. Concentrations were particularly high near the more urbanized Seberang Perai area, where sediment contained up to 4,000 particles per kilogram. The research highlights that tropical mangroves, which serve as important nursery habitats for marine life, are accumulating significant amounts of microplastic pollution.
Seasonal microplastic variations in estuarine sediments from urban canal on the west coast of Thailand: A case study in Phuket province
Researchers investigated seasonal variations in microplastic contamination in estuarine sediments from an urban canal in Phuket, Thailand. They found microplastic abundance was higher in the dry season than the rainy season, with rayon and polyester being the most common polymer types, suggesting that seasonal hydrological patterns and human activities both influence microplastic distribution in urban estuaries.
Interactions Between Heavy Metals and Microplastics in Surface Marine Sediments, Chanthaburi River Mouth, Eastern Gulf of Thailand
Researchers assessed heavy metal and microplastic contamination in surface marine sediments from the mouth of Thailand's Chanthaburi River, finding interactions between metal pollutants and plastic particles that affect contaminant bioavailability and ecological risk in estuarine environments.
Microplastic pollution in surface seawater and beach sand from the shore of Rayong province, Thailand: Distribution, characterization, and ecological risk assessment
Researchers surveyed microplastic pollution in beach sand and seawater along Rayong province, Thailand, finding average concentrations of 339 particles per kilogram in sand and 1,781 particles per cubic meter in seawater, with polyethylene as the most common polymer type.
Microplastic contamination on the lower Chao Phraya: Abundance, characteristic and interaction with heavy metals
Researchers investigated microplastic abundance, characteristics, and heavy metal interactions in water and sediment samples from the lower Chao Phraya River in Thailand, collecting samples via manta trawl and sediment grab. The study documented the distribution and polymer types of microplastics in a Southeast Asian river and examined their capacity to carry associated heavy metal contaminants.
Microplastic contamination in the Chanthaburi estuarine ecosystem, Eastern part of Thailand
Researchers surveyed microplastic contamination in the Chanthaburi estuarine ecosystem in eastern Thailand, measuring particle concentrations and types in water, sediment, and selected biota. Microplastics were detected throughout the estuary, with fibres predominating and concentrations highest near shrimp farms and urban areas, pointing to aquaculture and land-based waste as primary local sources.
Microplastics Contamination in a High Population Density Area of the Chao Phraya River, Bangkok
This study measured microplastic concentrations in surface water and sediment from a densely populated stretch of the Chao Phraya River in Bangkok, finding particles at all sites with higher levels in sediment than in water. Bangkok's high population density and inadequate plastic waste management are major contributors to microplastic contamination in this major urban river.
Depth Profiles of Microplastic in Sediment Cores in the Mangrove Area of Kuala Gula Mangrove, Malaysia
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.
Effect of tidal current on the settling and accumulation of microplastics in the Chao Phraya River estuary, Thailand
Researchers investigated the effect of tidal currents on the settling and accumulation of microplastics in the Chao Phraya River estuary during a mixed spring tidal cycle, deploying sediment traps at 3 meters depth during flood and ebb tides. The study found that tidal dynamics significantly influence where and how microplastics are deposited in estuarine sediments.
Prevalence of Microplastics in Coastal Area of Samae San, Thailand and Its Possible Source
Researchers examined microplastic abundance, morphology, and polymer composition across multiple environmental matrices in Samae San, Thailand, including soil near a dumping site, road dust, beach sand, and sediment, finding the highest concentration of 93,734.3 items per kilogram dry weight at the dumping site soil.
Occurrence and distribution of microplastics in surface sediments from the Gulf of Thailand
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.
Revealing Microplastic Contamination in Mangrove Sediments from Setiu Wetlands, Malaysia
Researchers found 2,292 microplastic particles per kilogram of sediment in the mangrove wetlands of Setiu, Malaysia, with over 80% being tiny fibers likely from fishing gear and packaging. Areas near aquaculture operations had the highest contamination levels, and the microplastic surfaces showed signs of environmental degradation that could make them more toxic. Mangrove ecosystems act as natural traps for microplastics, concentrating pollution in habitats that are vital for fisheries and coastal protection.
Abundance and characteristics of microplastics in the mangrove sediment of the semi-enclosed Maowei Sea of the south China sea: New implications for location, rhizosphere, and sediment compositions
Microplastics were widespread in mangrove sediments of the semi-enclosed Maowei Sea in southern China, with concentrations influenced by location within the mangrove, proximity to roots, and sediment composition. The study provides new insight into how mangrove ecosystems trap and accumulate microplastics, raising concerns for the health of these ecologically important coastal habitats.
Distribution and flux assessment of microplastic debris in the middle and lower Chao Phraya River, Thailand
Researchers measured microplastic concentrations throughout Thailand's largest river, the Chao Phraya, finding plastic particles at every sampling station across all seasons, with sediment concentrations up to 546 particles per kilogram dry weight. Fiber was the most common form, and contamination peaked during monsoon season when rainfall flushes more plastic into the river. The study estimates the river's flux of microplastics toward the Gulf of Thailand, providing a baseline for understanding how major Asian rivers transport land-based plastic pollution to the ocean.
Horizontal variation of microplastics with tidal fluctuation in the Chao Phraya River Estuary, Thailand
Microplastic concentrations and composition in the Chao Phraya River Estuary in Thailand varied with tidal cycle, with flood tides increasing marine-sourced particles and ebb tides flushing river-derived fragments, showing that tidal dynamics must be accounted for in estuarine microplastic sampling designs.
Spatiotemporal dynamics and tidal transport of microplastics in the tropical waters of the Gulf of Thailand
Researchers tracked microplastic contamination from the Chumphon River through the coastal Gulf of Thailand, including in farmed green mussels, finding that river systems carried higher microplastic loads than coastal waters. In the water column, low-density polymers dominated near the surface while high-density plastics increased with depth, and fibers made up 95% of particles in river water. Green mussels contained shorter fibers matching their surrounding environment, confirming that freshwater runoff from human activities is a major source of coastal microplastic pollution.
Occurrence of microplastics and ecological risk assessment during tidal changes in the Chao Phraya River estuary, Thailand
This study was the first to assess how tidal changes affect microplastic concentrations in the Chao Phraya River estuary in Thailand, finding abundances ranging from 1.37 to 4.51 pieces per liter across the tidal cycle. Fibers and fragments dominated, with ecological risk assessed as moderate.
Spatiotemporal variations of microplastics in the surface sediments of a tropical mangrove ecosystem in south-western India
Researchers studied microplastic distribution in mangrove sediments along India's southwestern coast across different seasons and found contamination present year-round. Microplastic concentrations varied seasonally, with higher levels detected during certain periods linked to monsoon runoff and human activity. The study highlights that mangrove ecosystems, which provide critical environmental services, are accumulating microplastic pollution from surrounding areas.
Spatial and vertical distribution of microplastics in mangrove sediment in the southern Philippines
This study mapped microplastic contamination in the sediments of three mangrove forests in Mindanao, Philippines, finding particles at all sites with counts ranging from 83 to 2,250 items per kilogram depending on location. Fragment shapes dominated near one river mouth while fibers dominated at a coastal site, and polypropylene was the most common polymer overall. Microplastic levels and types appeared linked to local economic activity, fishing, and waste management practices. The findings provide baseline data for protecting these ecologically important coastal ecosystems.
Microplastics pollution in tropical estuary (Muttukadu Backwater), Southeast Coast of India: Occurrence, distribution characteristics, potential sources and ecological risk assessment
Scientists surveyed microplastic contamination in the water and sediments of a tropical estuary on India's southeast coast. They found moderate to high levels of microplastic pollution, with common polymers like polyethylene and polystyrene contributing the most to ecological risk. The presence of trace metals on microplastic surfaces suggests these particles may also serve as carriers for heavy metal contamination in coastal ecosystems.
Preliminary Study of Abundance and Characteristics of Microplastics on Beach Sediment along the Coast of Rayong Province, Thailand
Microplastic contamination was found in beach sediment at three sites in Rayong Province, Thailand, with fibers and fragments being the most common types. The study provides baseline contamination data for this East Asian coastal region.