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61,005 resultsShowing papers similar to Characterization and distribution of microplastics in estuarine surface sediments, Kayamkulam estuary, southwest coast of India
ClearThe Prevalence of Microplastics in Water and Sediment Collected from Vellar Estuary in South India
Microplastic contamination was assessed in water and sediment samples from Vellar Estuary in Tamil Nadu, South India, finding widespread MP presence with fibres and fragments most common. The study identified this coastal estuary as significantly impacted by microplastic pollution from adjacent urban and industrial activities.
Status of Microplastic Accumulation in Water and Sediments of Selected Estuarine Ecosystem of Southern Kerala, India
Researchers measured microplastic levels in water and sediment from estuaries in southern Kerala, India, finding significant contamination in both habitats. The study identifies these coastal estuaries as accumulation zones for microplastic pollution, posing risks to local aquatic life and fishing communities.
Recent Investigation of Characterizing, quantifying, and Contamination of Microplastic in the surface water of Adyar River Estuary, Tamil Nadu, India
Researchers examined microplastic identity, characterisation, spatial distribution, and abundance in surface water samples from the Adyar River Estuary in Tamil Nadu, India, finding polyethylene at 52 percent, polypropylene at 32 percent, and polystyrene at 16 percent across 12 sampling sites totalling 82 microplastic items.
Seasonal distribution of microplastics in the surface water and sediments of the Vellar estuary, Parangipettai, southeast coast of India
Seasonal surveys of Vellar estuary on southeast India's coast found microplastics in both surface water (1.15 to 5.14 items/m3) and sediments (24.8 to 43.4 particles/kg dry weight), with fibers dominating and concentrations varying between seasons.
Risk assessments of microplastics accumulated in estuarine sediments at Cuddalore, Tamil Nadu, southeast coast of India
This study measured microplastic abundance and composition in sediments from two estuaries in Cuddalore, India, finding 36-52 particles per kg dry weight with fibers dominant, and conducted ecological risk assessments highlighting potential hazards to estuarine organisms.
Abundance, characteristics and surface degradation features of microplastics in beach sediments of five coastal areas in Tamil Nadu, India
Microplastic abundance and surface weathering features were characterized in beach sediments from five coastal areas in Tamil Nadu, India, with concentrations reaching up to 439 particles per kg and polyethylene and polypropylene dominating.
Microplastic profile and ecological risk assessment of emerging estuarine contaminants in two tourist hotspots of northern Kerala backwaters
Researchers investigated microplastic pollution in sediments and water of two tourist-heavy estuarine systems in northern Kerala, India. They found average concentrations of 187 to 259 particles per kilogram in sediments and 251 to 284 particles per liter in water, with polyamide as the dominant polymer type, indicating high ecological risk driven by tourism, fishing, and poor waste management.
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.
Presence of microplastics in estuarine environment: a case study from Kavvayi and Kumbla backwaters of Malabar Coast, Kerala, India
Researchers investigated the distribution and characteristics of microplastics in sediments and organisms from two backwater estuaries along the Malabar Coast in Kerala, India. The study detected microplastics in all samples analyzed, confirming widespread contamination across these estuarine environments, with particles identified down to 1 micrometer in size using optical microscopy and confocal Raman spectroscopy.
Ecological assessment of microplastic contamination in surface water and commercially important edible fishes off Kadalundi estuary, Southwest coast of India
Researchers documented microplastic contamination in both the surface water and 12 commercially important fish species from the Kadalundi estuary in India. Fibers were the most common type of microplastic found, with contamination levels varying across fish species. The findings are significant because this estuary is Kerala's first community reserve, and the contaminated fish are widely consumed by local populations.
Distribution and characterization of microplastics in beach sand from three different Indian coastal environments
Beach sands from three locations on the Indian coast were analyzed for microplastics, finding concentrations of 45–220 particles/kg dry sand with polyethylene (43%) as the dominant polymer, followed by PET and polystyrene. The study establishes baseline contamination data for Indian beaches and demonstrates consistent polymer profiles across geographically distinct coastal environments.
Characterization and risk assessment of microplastics accumulated in sediments and benthic molluscs in the mangrove wetlands along the south-west coast of India
Researchers assessed microplastic contamination in mangrove sediments and four species of benthic molluscs from Vembanad Lake, a major estuary on India's southwest coast. Average sediment contamination levels were relatively high compared to other mangrove regions in India, with polyethylene and polypropylene as the dominant polymers, and ecological risk indices indicated severe microplastic pollution risk for the molluscs studied.
A baseline study of microplastic pollution in a Southern Indian Estuary
This baseline study characterized microplastic distribution across surface, middle, and bottom water layers of the Udyavara River Estuary in southwest India, finding that concentrations varied by depth and season. The vertical distribution data improve understanding of how estuarine hydrodynamics influence microplastic accumulation and exposure risks to benthic organisms.
Spatial distribution and characteristics of microplastic particles in sediments at Belawan Estuary, North Sumatra Province
Researchers characterized the spatial distribution and properties of microplastic particles in sediments at Belawan Estuary in North Sumatra, Indonesia, providing baseline data on microplastic abundance, morphology, color, and polymer composition at a site with no prior microplastic research to inform future ecological assessments of this estuarine system.
Occurrence, characterization, and source delineation of microplastics in the coastal waters and shelf sediments of the central east coast of India, Bay of Bengal
This study characterized microplastics in surface water and shelf sediments along 1,200 km of India's east coast, finding average concentrations of 5.3 million particles per square kilometer in surface water and 209 particles per kilogram in sediments. Fibers dominated surface water while fragments dominated sediments, with riverine inputs and fishing activities identified as primary sources.
Abundance and distribution of subsurface microfibres and seabed macrolitter in Thoothukudi, Gulf of Mannar, South-east coast of India
This study measured the abundance and distribution of microfibers and larger plastic litter in coastal waters and seafloor sediments off Thoothukudi, India, finding widespread contamination. Microfibers were present throughout inshore waters, contributing to the growing body of evidence for plastic contamination along India's coastlines.
Microplastic distribution patterns in Kappil Beach sediments, Kerala
Beach sediment samples from Kappil, Kerala in India revealed 766 microplastic particles dominated by nylon fibers (78%), along with polyethylene and polystyrene, with the majority smaller than 1 mm. Risk assessments classified contamination as moderate to high, suggesting active fragmentation of larger plastic debris is ongoing. This baseline data is valuable for tracking pollution trends in Indian coastal ecosystems where fishing and tourism create significant plastic inputs.
Microplastic pollution in Vembanad Lake, Kerala, India: The first report of microplastics in lake and estuarine sediments in India
Researchers conducted the first study of microplastics in Vembanad Lake, Kerala, India, finding plastic particles across sampled sites and documenting the types and polymer composition of contamination in this important freshwater ecosystem.
Potential Ecological Risk Assessment Studies Based on Source and Distribution of Microplastics from the Surface Sediments of Tropical Backwaters, Kerala, India
Researchers characterized microplastic pollution in surface sediments of three tropical estuaries along the southwest coast of Kerala, India, finding 407 total particles and conducting ecological risk assessment to evaluate hazard levels from microplastic accumulation.
Sampling and Analysis of Microplastics in the Coastal Environments of Sri Lanka: Estuaries of the Kelani River to Mahaoya
Microplastics were found in both beach sediments and coastal seawater along 42 kilometers of Sri Lanka's western coastline, with polyethylene, polypropylene, and polystyrene being the most common types. The results document significant plastic contamination along the coast of a densely populated South Asian nation, raising concerns about exposure for coastal communities and marine life in the Indian Ocean region.
Presence of Microplastics in Estuarine Environment- A Case Study from Kavvayi and Kumbla Backwaters of Malabar Coast, Kerala, India
Researchers detected microplastics as small as 500 nanometers in sediments and bottom-dwelling organisms from two estuaries on India's Malabar Coast, using confocal Raman spectroscopy to identify polymer types and documenting contamination across all sampled sites.
Assessment of micro and macroplastics along the west coast of India: Abundance, distribution, polymer type and toxicity.
This study assessed the abundance and types of micro- and macroplastics on ten beaches along India's west coast, finding plastic in all locations with fragments being the most common form. Polymer analysis revealed polypropylene, polyethylene, and polystyrene as the dominant types, and toxicity testing indicated the plastic-contaminated sediments posed ecological risks.
Characteristics of microplastics in the beach sediments of Marina tourist beach, Chennai, India
Researchers conducted the first baseline study of microplastic pollution in beach sediments at Marina and Pattinapakkam beaches in Chennai, India. They identified an average of 459 and 297 microplastic particles at the two sites respectively, with polyethylene being the dominant polymer type. The study suggests that both human activities and natural coastal processes contribute to microplastic accumulation at these popular tourist beaches.
Sampling and Analysis of Microplastics in the Coastal Environments of Sri Lanka: Estuaries of Kelani River to Mahaoya
Microplastic abundance and types were quantified in beach sediments and seawater across nine sites along 42 km of Sri Lanka's western coast, documenting widespread contamination in estuarine and coastal environments.