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61,005 resultsShowing papers similar to Spatio-heterogeneity risk assessment from microplastic contaminations in water and sediment of the inner gulf of Thailand
ClearContamination 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.
Abundance And Characteristics of Microplastics Contaminating The Surface Water of The Inner Gulf of Thailand
Researchers collected surface water samples from 25 locations in the Inner Gulf of Thailand and found widespread microplastic contamination with varying concentrations and particle types. The study adds to regional evidence that the Gulf of Thailand is significantly impacted by microplastic pollution from both marine and land-based sources.
Integration of microplastics and heavy metals in the potential ecological risk index: Spatial pollution assessment of sediments in the inner Gulf of Thailand
Researchers assessed the spatial distribution of microplastics and heavy metals in surface sediments of the inner Gulf of Thailand, finding an average of nearly 1,400 microplastic pieces per kilogram with the highest concentrations near river mouths. They developed an integrated ecological risk index combining microplastic and heavy metal contamination, revealing that areas near river estuaries face moderate to considerable combined pollution risk. The study demonstrates the importance of evaluating microplastics alongside other contaminants for comprehensive environmental risk assessment.
Influence of seasonal variations on the distribution characteristics of microplastics in the surface water of the Inner Gulf of Thailand
Researchers sampled surface water across 70-74 sites in the Inner Gulf of Thailand in both dry and wet seasons, finding microplastic concentrations 4 times higher in the wet season (34.59 pieces/L) than the dry season (8.70 pieces/L). River discharge was identified as the key driver of microplastic input to the coastal sea, and polypropylene and polyethylene were the dominant polymers.
Assessment of microplastic pollution in corals, seawater, and marine sediments in the Gulf of Thailand
Researchers assessed microplastic occurrence, abundance, and characteristics in coral, seawater, and sediment samples from two reef sites in the Gulf of Thailand, detecting microplastics in all coral samples at concentrations ranging from 0.24 to 2.60 particles per gram and finding spatial variability across reef species and sites.
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.
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.
Type and Distribution of Microplastic Contamination in Beach Sediment Along the Coast of the Lower Gulf of Thailand
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.
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 pollution and risk assessment around coral reefs of the Eastern Part, Thailand
This study assessed microplastic pollution and ecological risk in sediments and water around coral reefs in the Eastern Pacific, finding microplastic concentrations elevated near human activity and identifying polymer types associated with fishing gear and land-based plastic waste.
Spatial–Temporal Distribution and Ecological Risk Assessment of Microplastic Pollution of Inland Fishing Ground in the Ubolratana Reservoir, Thailand
Researchers assessed the spatial and seasonal distribution of microplastics in surface water and sediment across 13 stations of the Ubolratana Reservoir in Thailand. They found that microplastic abundance ranged widely, with seasonal variations and tourism activity significantly influencing contamination levels. The pollution load index reached extremely high levels in tourist areas during the dry season, suggesting that human recreational activity is a major driver of reservoir microplastic pollution.
Urbanization Drives Microplastic Pollution in Thailand's Mun River: A Multi-Index Risk Assessment and Spatial Distribution Analysis
Researchers surveyed microplastic contamination in Thailand's Mun River across natural, agricultural, and urban areas, finding urban zones had dramatically higher microplastic concentrations. Polypropylene fibers dominated the samples, and risk assessments showed substantial ecological and human health hazards across all sites, with urban areas posing the greatest danger — evidence that city development directly intensifies river microplastic pollution.
Abundance, composition, and fate of microplastics in water, sediment, and shellfish in the Tapi-Phumduang River system and Bandon Bay, Thailand
Researchers measured microplastic contamination in water, sediment, and shellfish across the Tapi-Phumduang River system and Bandon Bay in Thailand, finding MPs throughout the system with highest concentrations in shellfish harvested from aquaculture areas and estimating human intake through local seafood consumption.
Spatial heterogeneity of microplastics and ecological risk assessment based on detection of seawater and fish in typical coastal region in Hainan
Spatial heterogeneity in microplastic concentrations across a study area was documented and linked to ecological risk, with hotspots identified near point sources and areas of low water flow. The risk assessment framework developed here can help prioritize sites for remediation or regulatory attention.
Microplastics in the surface seawater of Bandon Bay, Gulf of Thailand
Researchers surveyed microplastics in surface seawater of Bandon Bay, Thailand, finding the highest concentrations near fishery and aquaculture areas, with fragments as the dominant form and polyethylene and polypropylene as the most common polymer types.
Spatial distribution of microplastics in Persian Gulf marine environments
A spatial survey of microplastics in Persian Gulf marine sediments found widespread contamination, with concentrations varying by location and depth. The study adds to evidence that the Gulf's semi-enclosed, heavily trafficked waters are a significant repository for microplastic pollution.
Occurrence and spatial distribution of microplastic contaminated with heavy metals in a tropical river: Effect of land use and population density
Researchers studied microplastic pollution in Thailand's Chao Phraya River and found that population density and land use strongly influence contamination levels. Urban areas had the highest microplastic concentrations, and many particles were contaminated with heavy metals. The findings suggest that microplastics in rivers can serve as carriers of toxic metals, compounding the pollution risk for downstream communities.
Microplastics hotspots on a tropical estuarine-bay system
Researchers investigated microplastic hotspot accumulation and export dynamics within a tropical estuarine-bay system, finding that spatial patterns of MP concentration are linked to hydrodynamic processes and land-based inputs, with accumulation zones creating localised contamination risks associated with negative socio-environmental impacts.
Microplastics on beaches along the eastern Gulf of Thailand – A preliminary study
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.
Occurrence, spatial distribution, and risk assessment of microplastics in surface water and sediments of Saint Martin Island in the Bay of Bengal
Researchers surveyed microplastic occurrence in surface water and sediments around Saint Martin Island in the Bay of Bengal, finding widespread contamination with spatial distribution patterns linked to tourism and fishing activities, and conducted ecological risk assessment.
Testing the factors controlling the numbers of microplastics on beaches along the western Gulf of Thailand
Researchers measured microplastic concentrations on beaches along the western Gulf of Thailand and applied statistical models to link abundance patterns to ocean surface currents and land-based pollution sources, finding that current direction and proximity to riverine inputs were the strongest predictors of beach MP levels.
Occurrence, potential sources and ecological risk estimation of microplastic towards coastal and estuarine zones in Malaysia
Researchers analyzed microplastic abundance in surface water across coastal and estuarine zones in Malaysia affected by urbanization. The study found mean concentrations ranging from 2.10 to 6.80 particles per liter, dominated by cellophane, polyester, and polyethylene polymers, though risk assessment indicated no immediate ecological threat at current levels.
Spatial and seasonal distribution of microplastic in surface water of Bueng Boraphet Wetland—a Ramsar wetland in Thailand
Microplastics were measured in surface water of Bueng Boraphet Wetland, a Ramsar-listed freshwater site in Thailand, during wet and dry seasons across community, agricultural, and natural conservation zones. Microplastics were detected in all zones and seasons, with higher abundances during the dry season and in areas with greater human activity.
Abundance, Composition, and Potential Ecological Risks of Microplastics in Surface Water at Different Seasons in the Pearl River Delta, China
Researchers measured microplastic abundance, composition, and ecological risk in surface water of the Pearl River Delta across different seasons, finding spatially uneven distribution with some sites showing far higher concentrations than others. Ecological risk scores were highest at sites near industrial zones and dense urban areas.