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61,005 resultsShowing papers similar to Microplastics in aquaculture ponds of Bangladesh: Source attribution, pollution load, and ecological risk assessment
ClearMicroplastics in fish culture ponds: abundance, characterization, and contamination risk assessment
Researchers surveyed five types of fish farming ponds in Bangladesh and found microplastics in all sediment and water samples, with higher contamination near industrial areas. The most common microplastics were small fragments and fibers made of polyethylene and polypropylene, likely originating from packaging waste and fishing gear. The findings raise concerns about microplastic contamination in farmed fish that are destined for human consumption.
Integrated analysis of microplastics origins and impact on prominent aquaculture ecosystems in Bangladesh
Researchers surveyed microplastic contamination in aquaculture ponds in Bangladesh, finding widespread particles in both the water and farmed fish including tilapia and pangas. Fibers were the most common type, likely from textile and fishing net waste, and the contamination levels posed potential health risks to consumers. Since farmed fish is a major protein source in Bangladesh and many developing countries, these findings highlight a direct pathway for microplastics to reach people through their diet.
Ecological risk profiling of microplastic load in commercial aquaculture of Bangladesh: A multi-approach analysis across species-specific ponds
Researchers assessed microplastic contamination across five types of commercial fish ponds in Bangladesh, finding an average of about 520 particles per cubic meter of water. Pangas ponds had the highest contamination levels, and polyethylene and polypropylene were the most common plastic types. The study raises concerns about ecological risks to farmed fish in one of the world's leading aquaculture nations.
Microplastics pollution in aquatic ecosystems of Bangladesh — A critical review on research trends and future perspectives
This review found widespread microplastic contamination across all aquatic compartments in Bangladesh, with average concentrations of 4.92 particles/L in water and 118.40 particles/kg in sediment. Polyethylene, polypropylene, and polystyrene fibers and fragments predominated, with freshwater fish accumulating the most microplastics per organism.
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.
Abundance and characteristics of microplastics in major urban lakes of Dhaka, Bangladesh
Researchers measured microplastic contamination in three major urban lakes in Dhaka, Bangladesh, finding plastic particles in the water, sediment, and fish at all sites. The dominant plastics were common consumer types like polyethylene and PVC, with sizes mostly under 100 micrometers. Since these lakes are in a densely populated urban area, the findings raise concerns about microplastic exposure for the local population through both water and fish consumption.
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.
Microplastic contamination in commercial fish feeds: A major concern for sustainable aquaculture from a developing country
All commercial fish feed samples tested in Bangladesh were contaminated with microplastics, containing between 500 and 2,200 particles per kilogram. The most common plastics found were polyethylene and PVC, which fall into high-risk categories for toxicity. This is concerning because microplastics in fish feed enter farmed fish that people eat, creating a direct pathway for human exposure through aquaculture products.
Bioaccumulation of microplastics in the edible tissues of fish collected from urban lakes of Bangladesh: a potential exposure to public health
Researchers analyzed fish from urban lakes in Bangladesh and found microplastics present in the edible tissues of all species examined, with fibers being the most common type. The level of contamination varied by fish species and lake location, reflecting differences in local pollution levels. The findings raise public health concerns about microplastic exposure through freshwater fish consumption in densely populated urban areas.
Microplastics in Commercial Fish Feed in Bangladesh: An Emergent Risk Factor for Aquaculture
Researchers analyzed 21 commercial fish feed samples from Bangladesh and found microplastics present in all of them, with fibers being the most prevalent form across all feed grades. The contamination levels varied between brands and grades, suggesting inconsistent quality control in feed manufacturing. The findings indicate that commercial fish feed is an overlooked pathway through which microplastics enter aquaculture systems and potentially the human food chain.
Unveiling the microplastic crisis: Insights into Bangladesh's aquatic ecosystems - origins, impact, and solutions
This review examines the growing microplastic crisis in Bangladesh's rivers, estuaries, and coastal waters, finding that the country's rapid urbanization and limited waste management have led to widespread contamination. Microplastics were documented in water, sediment, and fish across multiple Bangladeshi water systems. Since over 160 million people in Bangladesh depend on these water resources for drinking, farming, and fishing, the contamination poses a significant public health concern.
Quantification, characterization and risk assessment of microplastics and mesoplastics in aquafarms of a leading fish-producing nation
Researchers assessed plastic contamination — including both microplastics and the often-overlooked mesoplastic size range — in water, sediments, and fish from aquaculture farms in northern Bangladesh. Concentrations in fish gut tissue were four to five times higher than in muscle, and over 80% of particles were fibers, with polyamide and polyethylene most common. The study argues that current regulations systematically underestimate plastic contamination in farmed fish by ignoring mesoplastics, posing an unrecognized food safety concern.
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.
Microplastics contamination in fish feeds: Characterization and potential exposure risk assessment for cultivated fish of Bangladesh
Researchers found significant microplastic contamination in commercial fish feeds used in Bangladesh aquaculture, with a single farmed tilapia potentially consuming over 268 microplastic particles over 20 weeks through its feed alone. The microplastics included 12 different polymer types and some had heavy metals like lead attached to their surfaces. Since farmed fish is a major protein source, this feed-to-fish pathway represents a direct route for microplastics to reach human diets.
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.
Microplastics occurrence in water, sediment and edible small indigenous fish species in seasonal freshwater wetland ecosystems of Bangladesh
Researchers found microplastics in the guts, gills, and muscle tissue of three commonly eaten fish species from seasonal wetlands in Bangladesh. Dried fish contained more microplastics than fresh fish, suggesting that the drying process concentrates plastic particles. Since these small fish are a dietary staple for local communities and are often eaten whole, this represents a direct pathway for microplastic exposure in human diets.
Unveiling Microplastics in Commercial Brackish Water Fishes from the Lower Meghna River Estuary of Bangladesh
Researchers found microplastics in the digestive tracts of three commonly eaten fish species from the Meghna River estuary in Bangladesh, with one species averaging nearly 23 particles per fish. Fibers were the dominant shape, and several of the plastic types identified scored high on a polymer hazard index. Since these fish are a dietary staple for local populations, the study highlights a direct route of microplastic exposure for millions of people in Bangladesh.
Occurrences, sources, fate and impacts of plastic on aquatic organisms and human health in global perspectives: What Bangladesh can do in future?
This review provides a comprehensive overview of plastic and microplastic pollution in aquatic environments globally, with a specific focus on the situation in Bangladesh. Researchers compiled evidence on the sources, fate, and biological impacts of plastic pollution on aquatic organisms ranging from plankton to fish, as well as potential human health risks. The study concludes with recommendations for waste management strategies and future research priorities tailored to Bangladesh's specific environmental and economic challenges.
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.
Abundance and characteristics of microplastics in major urban wetlands of Dhaka, Bangladesh
Microplastics were found in water, sediment, and fish from three major urban lakes in Dhaka, Bangladesh, with concentrations ranging from 0 to 9 items per liter in water samples. Fibers were the most common type across all matrices, pointing to textile washing and wastewater discharge as key local sources.
Microplastic Occurrences in Freshwater Fish of Bangladesh
This review synthesizes research on microplastic contamination found in freshwater fish across Bangladesh, where rapid population growth and urbanization have led to significant plastic pollution. Researchers found that fibers are the most commonly detected microplastic type in fish tissues, raising concerns about impacts on gut health and immune function. The study highlights the need for more comprehensive monitoring given Bangladesh's heavy reliance on freshwater fish as a dietary staple.
Assessment of microplastics pollution in aquatic species (fish, crab, and snail), water, and sediment from the Buriganga River, Bangladesh: An ecological risk appraisals
Researchers assessed microplastic pollution across water, sediment, fish, crab, and snail from Bangladesh's Buriganga River, finding widespread contamination with fibers and fragments along with elevated heavy metal concentrations on microplastic surfaces.
Microplastics pollution in Bangladesh: current scenario and future research perspective
Microplastics have been found throughout Bangladesh's aquatic and terrestrial environments, where they threaten biodiversity and enter the food chain. This review synthesizes the available evidence and calls for stronger national monitoring programs and policies given Bangladesh's vulnerability to plastic pollution from its dense population and major rivers.
Microplastics contamination in aquaculture-rich regions: A case study in Gresik, East Java, Indonesia
This study provides the first assessment of microplastic contamination in milkfish aquaculture ponds in Gresik, Indonesia. Researchers found microplastics in both water and sediment across all sampling sites, with fragments, fibers, films, and pellets of various polymer types present, largely linked to human activities surrounding the ponds.