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61,005 resultsShowing papers similar to Ecological risk assessment and ingestion of microplastics in edible finfish and shellfish species collected from tropical mangrove forest, Southeastern India
ClearMicroplastic pollution and its implicated risks in the estuarine environment of Tamil Nadu, India
Researchers investigated microplastic pollution across 19 estuaries in Tamil Nadu, India, measuring contamination in water, sediment, and marine organisms. They found microplastic levels were higher during monsoon season due to stormwater discharge, and estimated that local residents may ingest approximately 781 microplastic items through fish and 2,809 through shellfish annually. The study suggests that estuarine microplastic pollution poses meaningful human exposure risks through seafood consumption.
Charting the microplastic menace: A bibliometric analysis of pollution in Malaysian mangroves and polypropylene bioaccumulation assessment in Anadara granosa
Researchers surveyed microplastic contamination in Malaysian mangrove ecosystems and tested how a common shellfish species accumulates polypropylene particles. They found microplastics in all sediment and water samples, with the shellfish readily taking up fiber-shaped particles. The estimated dietary intake suggests that consumers of these shellfish could ingest hundreds of microplastic particles per year, highlighting food safety concerns.
Seasonal variation of microplastics in tropical mangrove waters of South-western India
Researchers measured seasonal variations in microplastic contamination within tropical mangrove waters in South-Western India. They found that post-monsoon concentrations were highest at 1.42 microplastics per liter, while monsoon season had the lowest levels at 0.19 per liter. Fibers were the most common particle type, with polymers including polypropylene, PET, and polyethylene identified, likely originating from local tourism, aquaculture, and marine industries.
Microplastics in mangroves with special reference to Asia: Occurrence, distribution, bioaccumulation and remediation options
This review examines microplastic contamination in Asian mangrove ecosystems, finding higher pollution levels near fishing, tourism, and industrial areas. Organisms throughout the mangrove food web, from shellfish to fish, accumulate microplastics based on their feeding habits and habitat. While mangrove plants can trap some microplastics in their roots, the widespread contamination of these coastal ecosystems raises concerns about the safety of seafood harvested from mangrove areas for human consumption.
Seasonal variations in microplastics in a coastal wetland in southwest India as well as their risks to Sillago sihama and Gerres filamentosus
Researchers conducted seasonal sampling of microplastics in a mangrove ecosystem in southwest India and examined contamination in two fish species. They found that microplastic abundance varied significantly by season and water depth, with fibers being the most common type. The study also assessed potential health risks to both the fish and humans who consume them, highlighting how coastal wetland pollution can move through the food chain.
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.
Driving aspects of microplastic uptake: Influence in the Bentho-Pelagic ecosystem and its associated ecological risks along the coast of Goa, India
Researchers studied microplastic contamination in nine fish and shellfish species along the coast of Goa, India, to understand how habitat and feeding behavior drive microplastic ingestion. Benthic organisms and sediments showed higher contamination than pelagic species and water, with fibrous polyamide and polyester particles being most abundant, and the Polymer Hazard Index indicated considerably high risk for certain polymers found in these food species.
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.
Spatial, seasonal and ecological risk assessment of microplastics in sediment and surface water along the Thoothukudi, south Tamil Nadu, south east India
Researchers assessed the spatial and seasonal variation of microplastics in sediment and surface water along the Thoothukudi coast in southeastern India. The study found significant differences in microplastic abundance across sampling sites and seasons, with monsoon periods recording the highest concentrations, and conducted an ecological risk assessment of the contamination levels.
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.
Microplastic contamination in commercially important fish and shellfish from coastal waters of the Bay of Bengal off Chennai, southeast coast of India
Microplastics were detected in commercially important fish and shellfish from the Bay of Bengal off the southeast coast of India, with average ingestion levels varying by species and collection site. The presence of plastic particles in widely consumed coastal seafood raises direct concerns about human dietary exposure to microplastics in the region.
Seasonal variation, polymer hazard risk and controlling factors of microplastics in beach sediments along the southeast coast of India
Researchers investigated microplastic contamination at six beaches along India's southeast coast, comparing seasonal variation and hazard risk. They found that polyethylene and polypropylene fibers were the most common types, likely originating from fishing, textile, and urban activities. Although overall contamination levels were low, the presence of hazardous polymers like PVC and polystyrene contributed to a very high ecological risk index for marine life.
Microplastic contamination in Kerala's coastal ecosystems: a review of sources, distribution, and ecological implications
Researchers reviewed microplastic contamination in Kerala's coastal waters and sediments, finding concentrations as high as 200 particles per liter in some areas, with pollution disrupting mangrove and coral reef ecosystems, entering the food chain through seafood, and posing inflammation and endocrine disruption risks to humans.
Accumulation of microplastic in edible marine species from North Kerala, India
Researchers found microplastics in the edible tissues of three popular seafood species (clams, shrimp, and anchovies) from fish markets in Kerala, India. Fibers and fragments were the most common shapes, with polyethylene and polypropylene being the dominant plastic types. Since these species are consumed whole or with minimal processing, the study highlights a direct pathway for microplastic ingestion by people who eat locally caught seafood.
The extent of microplastic pollution along the eastern coast of India: Focussing on marine waters, beach sand, and fish
Researchers assessed microplastic contamination across water, sand, and fish from seven major beaches along India's eastern coast, finding widespread pollution dominated by polyethylene and polystyrene with hazard indices indicating potential ecological risk.
Microplastic Contamination in Water, Sediment, and Biota in Mangrove Forests
This review synthesized research on microplastic contamination in mangrove forest water, sediment, and biota, finding that mangroves act as both sinks and potential sources of microplastics due to their complex hydrodynamics, with ecotoxicological data on mangrove-specific organisms remaining limited.
Assessment of microplastics in coastal ecosystem of Bangladesh
Researchers surveyed microplastic contamination in water, beach sand, and fish along two major coastal areas of Bangladesh. Microplastics were found in every sample type, with fibers being the most common shape and polyethylene and polypropylene the dominant plastic types. Fish accumulated microplastics in their digestive tracts and body tissues, raising concerns about human exposure through seafood consumption in the region.
Assessment of Microplastic Pollution Across the Malabar Coast, India
Researchers assessed microplastic contamination in water, sediment, and commercially important fish along the Malabar coast in India. They found microplastics in all sample types, with the highest concentrations in fish gastrointestinal and gill tissues, predominantly consisting of fragments and fibers of common plastics like HDPE, PET, and nylon. The study points to direct discharges, runoff, and poor wastewater management as key sources, underscoring the need for regulatory measures to protect both marine ecosystems and the people who consume seafood from the region.
Risk assessment and influence of microplastics on mangrove forest soil: Sandwip Island, Chittagong, Bangladesh
Researchers assessed microplastic contamination in mangrove forest soils on Sandwip Island, Bangladesh, characterizing the abundance, types, and potential ecological risks of the particles. They found notable levels of microplastic pollution in the mangrove sediments, with fibers and fragments being the most common forms. The study highlights an understudied threat to mangrove ecosystems and calls for greater attention to microplastic impacts on these critical coastal habitats.
Spatial heterogeneity of microplastic pollution and associated emerging contaminants in tropical estuarine environments: Novel insights into distribution, bioavailability, and ecological risk
Scientists found tiny plastic particles in water, mud, and seafood like shellfish and crabs in two river areas in India. These microplastics carry harmful chemicals and are getting into the food chain, which could affect the safety of seafood that people eat. While the current risk appears low, this research shows we need better policies to reduce plastic pollution to protect both ocean ecosystems and human food sources.
The Occurrence of Microplastics in the Gut Contents of Selected Estuarine Fishes of Southern Kerala, India
A two-year survey of estuarine fish in southern Kerala, India, found microplastics — predominantly polypropylene, polyethylene, and polystyrene — in the stomachs of multiple commercially consumed species. The study documents spatial and seasonal variation in contamination levels, raising concern about human dietary exposure to microplastics through fish consumption in Indian coastal communities.
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.
Preliminary Study on the Role of Mangroves in Entrapping Microplastics in Tuticorin Coast of Gulf of Mannar, Southeast Coast of India
Researchers compared microplastic concentrations in mangrove sediments versus open-beach control sites along the coast of southern India and found consistently higher levels within mangrove areas. Polyethylene and polypropylene fibers in the 1–3 mm range were most common, and weathering analysis confirmed significant environmental degradation of the particles. The findings suggest that mangrove root systems act as natural traps for microplastics, which has implications for both ecosystem health and the many coastal communities that rely on mangroves for fisheries and shore protection.
Microplastics accumulation in sediments and Periophthalmus waltoni fish, mangrove forests in southern Iran
Researchers quantified microplastic contamination in sediments and mudskipper fish from mangrove forests in southern Iran. They found over 2,600 plastic particles across samples, with higher concentrations at high-tide collection points, and fibers being the most common particle shape. The study demonstrates that mangrove ecosystems serve as sinks for microplastic pollution, with evidence of particle accumulation in fish tissues raising concerns about food web contamination.