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61,005 resultsShowing papers similar to Influence of seasonal variations on the distribution characteristics of microplastics in the surface water of the Inner Gulf of Thailand
ClearSeasonal 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.
Seasonal effects, spatial distribution, and possible sources of microplastics in the Chao Phraya River estuary, Thailand
This study tracked microplastic abundance and distribution in the Chao Phraya River estuary in Thailand across dry and wet seasons. Plastic levels varied significantly by season and location, with the estuary serving as a key pathway for plastic debris entering the marine environment.
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.
Impact of seasonal variations on microplastic accumulation and characteristics in sandy beaches of Sichang Island, the inner Gulf of Thailand
Researchers measured microplastic abundance in beach sediments on Sichang Island in the Gulf of Thailand across dry and wet seasons, finding that seasonal monsoon winds and currents strongly affected where plastics accumulated — increasing contamination on exposed windward beaches and reducing it on sheltered leeward ones. Polypropylene was the most common polymer found, and smaller microplastic particles became less abundant after the wet season, possibly dispersed further by wave action. The work highlights how local geography and seasonal weather patterns shape where microplastics concentrate along coastlines.
Influence of monsoon seasonality and tidal cycle on microplastics presence and distribution in the Upper Gulf of Thailand
Researchers surveyed microplastic pollution around Si Chang Island in the Gulf of Thailand across different monsoon seasons and found that seasonal weather patterns strongly influence microplastic abundance and distribution. Evidence suggests that UV exposure during dry seasons fragments plastic waste on land, which is then washed into the ocean by heavy rains during the wet season. The findings highlight how tropical climate cycles drive microplastic contamination in Southeast Asian coral reef areas.
Abundance and variation of microplastics between seasons in a tropical estuary: The case of Can Gio estuary, Vietnam
Researchers assessed seasonal variation in microplastic abundance and characteristics in the Can Gio estuary, Vietnam, across wet and dry seasons. Microplastic concentrations were higher during the wet season, with seasonal plastic transport linked to river discharge and rainfall-driven inputs from upstream urban sources.
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.
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.
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.
Temporal and Spatial Distribution of Microplastics in a Coastal Region of the Pearl River Estuary, China
Researchers found that microplastic abundance in the Pearl River Estuary coastal region was 1.85-fold higher during the rainy season than the dry season, with concentrations decreasing from river to estuary to open sea. Fibers and fragments dominated, with gray, white, and green particles most common across sampling sites.
Deciphering the seasonal dynamics of microplastic morphotypes and associated co-contaminants along the northwest coast of India
Researchers studied seasonal variations in microplastic abundance along the northwest coast of India bordering the Arabian Sea. The study found dramatically higher microplastic concentrations during monsoon season compared to pre- and post-monsoon periods, with polypropylene and high-density polyethylene as the dominant polymer types.
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.
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.
Spatio-heterogeneity risk assessment from microplastic contaminations in water and sediment of the inner gulf of Thailand
This study assessed the spatial distribution and ecological risk of microplastic contamination in water and sediment across the inner Gulf of Thailand, finding heterogeneous pollution patterns driven by urbanization, industrial activity, and riverine discharge. High-risk zones were identified near urban and industrial areas.
Type and Distribution of Microplastics in Beach Sediment along the Coast of the Eastern Gulf of Thailand
Researchers examined microplastic distribution in beach sediments along the eastern Gulf of Thailand across two monsoon seasons, finding up to 1,698 pieces/m2 at the most contaminated site with PET (39.6%) and polyamide (22.8%) as the dominant polymer types among 17 identified.
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.
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.
Insights into the seasonal distribution of microplastics and their associated biofilms in the water column of two tropical estuaries
Researchers tracked microplastic levels and the bacterial communities growing on them in a tropical estuary in southwest India across wet and dry seasons. Microplastic concentrations were about seven times higher during the wet season due to increased runoff, and the biofilms on these plastics included potentially harmful bacteria. The study shows that seasonal weather patterns influence how much microplastic contamination reaches coastal waters where local communities fish and collect seafood.
Seasonal variation in the abundance of microplastics in three commercial bivalves from Bandon Bay, Gulf of Thailand
Researchers examined microplastic contamination in three types of commercially harvested shellfish from Bandon Bay in Thailand across different seasons. They found that microplastic levels were significantly higher during the dry season, with oysters containing the most particles. The study suggests that seasonal conditions and proximity to fishery activities influence how much microplastic accumulates in seafood.
Suspended microplastics during a tidal cycle in sea-surface waters around Chao Phraya River mouth, Thailand
Researchers sampled microplastics from surface waters around the Chao Phraya River mouth in Thailand during low and high tides. Microplastic concentrations were significantly lower during spring tide than neap tide, suggesting that tidal dynamics play an important role in how plastic particles are distributed and diluted in coastal waters.
Seasonal distribution of microplastics in surface waters of the Northern Indian Ocean
Researchers documented seasonal distribution of microplastics in Northern Indian Ocean surface waters across three monsoon periods, finding polyethylene and polypropylene dominated at 83%, with fibers accounting for 86% of all particles.
Spatial and seasonal variation of microplastics and possible sources in the estuarine system from central west coast of India
Researchers collected samples from an estuarine system on India's west coast across two seasons, finding significant spatial and seasonal variation in microplastic abundance — with monsoon season delivering higher loads — and identifying local fishing activities and urban runoff as primary sources.
Unravelling capability of municipal wastewater treatment plant in Thailand for microplastics: Effects of seasonality on detection, fate and transport
Microplastic fate and transport in a wastewater treatment plant in Nonthaburi, Thailand were tracked during both dry and wet seasons, finding that seasonal variation in flow rates and influent composition affected microplastic removal efficiency and the polymer types discharged to the receiving environment.
The Distribution of Microplastic in Sediment at Khuan Khi Sian Wetland, Southern Thailand
Researchers measured microplastic accumulation in sediment cores from a wetland in southern Thailand across two seasons, finding higher concentrations in the dry season. Wetlands are important ecosystems that can act as sinks for microplastics, concentrating them in sediments where they affect bottom-dwelling organisms.