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61,005 resultsShowing papers similar to Characterization of microplastics in commercially valued Gangetic fishes and its exposure assessment on humans
ClearOccurrence of plastics and their characterization in wild caught fish species (Labeo rohita, Wallago attu and Mystus tengara) of River Ganga (India) compared to a commercially cultured species (L. rohita)
Researchers analyzed nine wild-caught fish species from two sites along the River Ganga in Patna, India, detecting plastics in gastrointestinal tracts, liver, gills, and muscles, providing rare data on plastic contamination in one of the world's most polluted rivers.
Microplastics in Commercial Fishes in the River Ganga and Their Human Health Risk Assessment
Researchers analyzed gastrointestinal tracts and muscle tissue of four fish species from the Ganga River in India, finding microplastics in two-thirds of GI tracts and 15% of muscle samples, with Johnius coitor showing the highest contamination at 19 particles per gram.
Prevalence of microplastics in commonly consumed fish species of the river Old Brahmaputra, Bangladesh
Researchers found microplastics in nearly 59% of edible fish from Bangladesh's Old Brahmaputra river, with polyethylene fibers and pellets dominating, and ingestion rates linked to fish size, feeding behavior, and downstream location.
Abundance, characteristics, and risk assessment of microplastics in indigenous freshwater fishes of India
Researchers examined microplastic contamination in five widely consumed freshwater fish species from India and found plastic particles in all specimens, with fibers being the most dominant type. Evidence of microplastics in edible fish tissue indicates translocation from the gut, suggesting a pathway for human exposure through consumption. Risk assessment showed that while microplastic abundance posed a low quantitative risk, the polymer types identified indicated a high hazard potential for the fish species studied.
Microplastics in the River Ganga and its fishes: Study of a Himalayan River
This study investigated microplastic contamination in water, sediment, and fish in the upper stretch of the River Ganga in Uttarakhand, India, providing baseline data on microplastic distribution in a Himalayan river reach previously unstudied.
Microplastics in freshwater wild and farmed fish species of Bangladesh
Researchers evaluated microplastic contamination in freshwater wild and farmed fish species across multiple rivers and farms in Bangladesh, comparing contamination levels between wild-caught and aquaculture-raised fish of the same species.
Evaluation of Microplastic Contamination in Commercially Edible Fresh Water and Marine Fishes Bought from Fish Markets, Tiruchirappalli, Tamil Nadu, India
This Indian study examined microplastic contamination in freshwater and marine fish sold in markets in Tamil Nadu, finding plastic particles in multiple commercially important species. People who regularly eat fish from contaminated markets are likely consuming microplastics as part of their diet.
Assessment and accumulation of microplastics in the Indian riverine systems: Risk assessment and implications of translocation across the water-to-fish continuum
This review assessed microplastic pollution across Indian rivers and the fish that live in them, finding widespread contamination in both water and fish tissues. Microplastics were found to transfer from river water into fish organs including gills, gut, liver, and muscle tissue that people eat. Since Indian rivers support the livelihoods and food supply of hundreds of millions of people, this contamination pathway is a significant concern for human dietary exposure to microplastics.
Microplastics in fishes from the Meghna River estuary, Bangladesh
Researchers found microplastics in over 80% of fish sampled from the Meghna River estuary in Bangladesh, with fibres being the most common type and polyethylene and polypropylene the dominant polymers. The contamination of these commercially important fish species signals a risk of microplastic exposure for people who eat them, particularly in communities where fish is a dietary staple.
Assessment Of Microplastics In Commercially Important Fishes Collected From Thondi Fish Landing Center
Researchers assessed the presence and characteristics of microplastics in commercially important fish species collected from the Thondi fish landing center in India. The study evaluated microplastic contamination levels in fish obtained from a coastal fishing hub, contributing data on the prevalence of plastic particles in seafood relevant to both ecological and human dietary exposure concerns.
Occurrence of Microplastics in the Gastrointestinal Tracts of Edible Fishes from South Indian Rivers
Researchers isolated and characterized microplastics from the gastrointestinal tracts of five edible fish species collected from the Kollidam and Vellar rivers in Tamil Nadu, Southern India. They found 315 microplastic particles across 23 fish, dominated by fibers (85.7%) in Kollidam river fish and fragments (14.3%) in Vellar river fish, with particle sizes ranging from 109 to 284 µm, indicating widespread dietary exposure to microplastics in commercially harvested freshwater fish.
Evidence of microplastic contamination in the food chain: an assessment of their presence in the gastrointestinal tract of native fish
Researchers found microplastics, mainly polyethylene and polypropylene, in the guts of fish from the Swat and Kabul rivers in Pakistan. These rivers are primary freshwater sources for the region, and the contaminated fish are regularly consumed by local communities. The findings confirm that freshwater fish from polluted rivers are a pathway for microplastic exposure in people's diets.
Assessment of microplastic contamination in commercially available fishes
Researchers found microplastics in every one of 32 commercially sold fish from markets in Vellore, India, recovering a total of 875 particles from their gills and digestive tracts. Fibers made up 91% of the microplastics, with polyvinyl alcohol and polyethylene being the most common types. Since these are fish commonly eaten by local populations, the findings raise direct concerns about human microplastic exposure through seafood consumption.
Microplastic abundance in commercially important brackish water fin-fish from the Bay of Bengal
Researchers analyzed the gastrointestinal tracts of seven commercially important fish species from the Bay of Bengal, confirming widespread microplastic contamination dominated by fibers and fragments, with implications for seafood safety.
Occurrence and characterization of microplastic content in the digestive system of riverine fishes
Researchers found microplastics in 93.8% of riverine fish examined, with polystyrene, polyethylene, and nylon being the most common polymer types concentrated near urban and industrial areas, and small particles (0.025-1 mm) predominating across species.
Microplastic contamination in thirty commercially important fish species: Distribution, polymer composition, pollution indices, and human health risks
Researchers examined microplastic contamination in 600 specimens across 30 commercially important fish species from the Indian coast, finding the highest accumulation in the gastrointestinal tract with carnivorous species carrying the greatest burden. Polyethylene and polypropylene fibers were the dominant particle types, and human health risk assessment showed measurable daily intake from consuming these fish, with pollution indices indicating considerable to medium hazard risk levels.
Tracing microplastics in marine fish: Ecological threats and human exposure in the Bay of Bengal
Researchers analyzed microplastics in nine fish species from the Bay of Bengal, finding an average of about 33 microplastic items per fish, mostly fibers. Bottom-dwelling and meat-eating fish had higher contamination levels, and the pollution was linked to untreated industrial and municipal waste. The study raises concerns about human health exposure through seafood consumption in a region where millions of people depend on fishing for food and livelihood.
Abundance, characteristics and variation of microplastics in different freshwater fish species from Bangladesh
Researchers examined 48 freshwater fish from 18 species in Bangladesh and found microplastics in the digestive tracts of over 73% of the fish studied. Fibers were the most common shape, and the plastics were primarily polyethylene and polypropylene-based polymers. Bottom-dwelling fish contained more microplastics than those living higher in the water column, suggesting that contaminated sediments are a significant source of exposure for freshwater species.
Microplastic Pollution in Indigenous Fish From the Padma River, Bangladesh: A Case Study
Researchers examined indigenous fish species from the Padma River in Bangladesh and found microplastics in the gastrointestinal tracts of all species studied, with fibers being the dominant type. The abundance and types of microplastics varied across species, reflecting differences in feeding habits and habitat. The findings highlight the widespread presence of microplastic contamination in an important inland waterway and its potential impact on food security in the region.
The pervasiveness of microplastic contamination in the gastrointestinal tract of fish from the western coast of Bangladesh
Researchers found microplastics in every individual fish examined from the western coast of Bangladesh, with an average of 7.1 particles per specimen, and demersal species accumulating more microplastics than pelagic species near the world's largest mangrove ecosystem.
Pervasiveness of microplastics in the gastrointestinal tract of some selected fish species from Turag River alongside the capital city of Bangladesh
Researchers found microplastics in all three species of fish collected from the Turag River near Dhaka, Bangladesh, with fiber being the dominant type at 89-93% of all particles found. The most common plastics identified were polypropylene, polystyrene, and low-density polyethylene, with the majority of particles smaller than 0.5 mm. Since these freshwater fish are a major protein source for local communities, the contamination raises concerns about microplastic exposure through the food supply in urban areas of developing countries.
Microplastic Ingestion by Fishes from Jamuna River, Bangladesh
Freshwater fish from the Jamuna River in Bangladesh were examined for microplastic ingestion, finding plastics in a high proportion of individuals across multiple species. The study provides early evidence of freshwater microplastic contamination in Bangladesh and highlights the Jamuna River as a significant conduit for plastic pollution.
Occurrence, characteristics and distribution of microplastics in commercial marine fishes of the Bay of Bengal
Scientists found microplastics in the muscles, guts, and gills of six commercially important fish species from the Bay of Bengal, identifying over 7,000 particles total. Polyethylene and polypropylene fibers were the most common types, and tuna had the highest contamination levels. Since these fish are widely consumed by people in the region, the findings highlight a direct dietary exposure pathway for microplastics to reach humans through seafood.
Human health and ecological risks associated with microplastic contamination in widely consumed catfish from a large-scale estuary
Researchers quantified microplastic contamination in two commercially important catfish species from the Meghna Estuary in Bangladesh, analyzing gills, digestive tracts, and muscle tissue. The study found tissue-specific patterns of microplastic accumulation and assessed both ecological and human health risks, highlighting concerns about dietary exposure through fish consumption in regions where fish is a primary protein source.