We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
61,005 resultsShowing papers similar to Microplastics and heavy metals in freshwater fish: A comprehensive study of contamination and health risks
ClearOccurrence and exposure analysis of microplastic in the gut and muscle tissue of riverine fish in Kermanshah province of Iran
Researchers analyzed microplastic contamination in the gut and muscle tissue of fish from the Qarasu River in Iran, finding microplastics in all species examined. The estimated human dietary intake through fish consumption was calculated at approximately 174 and 127 particles per kilogram of body weight per year for adults and children respectively, highlighting the potential for microplastic exposure through food.
First Evidence of Microplastic Ingestion by Riverine Fish From the Freshwater of Northwest Peninsular Malaysia
Researchers found microplastics in the guts of multiple fish species from two rivers in northwest Malaysia, with some species averaging nearly 50 microplastic particles per gram of body weight. The dominant particles were fibers and fragments of polyethylene and polypropylene — findings that signal widespread contamination of freshwater food sources and raise concerns about human exposure through fish consumption.
Combined contamination of microplastics and heavy metals in a riverine ecosystem: insights from fish and amphibian species
Researchers conducted the first simultaneous evaluation of microplastics and heavy metals in both freshwater fish and amphibians from the Seimareh River in western Iran. They found that amphibians ingested about 9% more microplastic particles than fish, and strong correlations between microplastic abundance and certain metals like lead, cadmium, and arsenic suggest that microplastics may enhance metal bioavailability. The study identifies amphibians as particularly sensitive indicators of combined pollution from microplastics and heavy metals.
Microplastic pollution and heavy metal risk assessment in Perca fluviatilis from Anzali wetland: Implications for environmental health and human consumption
Researchers analyzed heavy metals and microplastics in the tissues of European perch from Anzali Wetland in Iran and found contamination in muscle, liver, and gill samples. Microplastics were present in all fish examined, with fibers being the most common type. The study raises concerns about potential health risks for people who regularly consume fish from this polluted wetland.
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.
Microplastics and heavy metals in freshwater fish species in the southwestern region of Bangladesh: An emerging concern for public health
Researchers examined seventeen freshwater fish species from Bangladesh and found microplastics in all of them — mostly tiny fibers under 1mm made of polyethylene — alongside concerning levels of heavy metals including chromium and lead. While microplastic-linked health risks were low to moderate, the heavy metal contamination posed elevated cancer risks for people who regularly eat these fish.
Microplastic and Heavy Metal Accumulation in Cultured Fish: Concerns for Food Safety
Researchers analysed microplastics and heavy metals in five freshwater fish species from aquaculture ponds in Bangladesh and found MPs in the gastrointestinal tracts of 96% and in edible tissues of 88% of fish sampled. Heavy metal concentrations also exceeded safe levels in several species, raising combined food safety concerns.
Exploring synergistic contamination of heavy metals and microplastics in marine edible fishes and associated risk status in humans
Researchers assessed heavy metal and microplastic contamination in multiple marine fish species along the Gujarat coastline and found substantial spatial and interspecies variation. Some species exceeded safe metal thresholds, and MP contamination was prevalent, with combined exposure posing amplified health risks for local consumers.
Microplastics in aquatic species of Anzali wetland: An important freshwater biodiversity hotspot in Iran
Researchers surveyed microplastic contamination in seven aquatic species from Anzali Wetland in Iran, a globally recognized biodiversity hotspot. They found microplastics in the digestive tracts, gills, and skin of all species examined, with herbivorous bottom-dwelling fish showing the highest contamination levels. The findings raise concerns about the widespread penetration of microplastics into freshwater food webs at ecologically sensitive sites.
Assessment of microplastic contamination in rainbow trout (Oncorhynchus mykiss) and surface water of a high-altitude aquaculture system in the Chehel Chai River, Iran
Researchers investigated microplastic contamination in both farmed rainbow trout and the surface water of the Chehel Chai River in Iran, finding microplastics in fish digestive tracts, gills, and skin. A total of 50 fish were analyzed, revealing widespread presence of plastic particles across all tissue types examined. The study raises concerns about microplastic transfer to humans through consumption of farmed fish from contaminated waterways.
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.
Tracing the invisible microplastics in river water and fish organs and its implication of riverine ecosystem integrity
Researchers traced microplastics in river water and fish organs from a South Asian river system, finding widespread contamination across multiple tissue types. The study identified the plastisphere concept as a useful framework for understanding how plastic-associated microbial communities accompany microplastics through aquatic food webs.
Characterization of microplastics in commercially valued Gangetic fishes and its exposure assessment on humans
Researchers characterized microplastics in commercially sold fish from the Ganges River in India, finding plastic contamination across multiple species and providing an initial exposure assessment for human consumers who rely on freshwater fish as a primary protein source.
Investigation of microplastic ingestion in commercial fish from Surabaya river, Indonesia
Researchers examined microplastic contamination in commercial fish species from the Surabaya River in Indonesia, a major urban waterway used for both clean water supply and fisheries. They found microplastics present in all fish studied, with variations in abundance linked to feeding behavior and habitat. The findings raise concerns about food safety for communities that rely on river fish as a dietary staple.
Assessment of microplastics in the gastrointestinal tract of some fish caught for human consumption in Bandar Abbas, the Persian Gulf
Researchers examined microplastic content in the digestive tracts of fish caught for human consumption in the Persian Gulf near Bandar Abbas, Iran. Microplastics were found in multiple commercially important species, with the highest contamination rates in Sillago sihama (62%), raising food safety concerns for local seafood consumers.
Microplastic ingestion in important commercial fish in the southern Caspian Sea
Researchers examined microplastics in the digestive systems of two commercial fish species (Chelon aurata and Rutilus kutum) responsible for over 50% of Caspian Sea catch, documenting the extent of contamination in fish destined for human consumption.
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.
Tracing the invisible microplastics in river water and fish organs and its implication of riverine ecosystem integrity
Researchers analyzed microplastics in river water and fish organ tissues from a river in South Asia, finding contamination throughout the aquatic food web. The study used the plastisphere framework to discuss how microbial communities colonizing microplastics may influence particle fate and biological effects.
Characterization of ingested MPs and their relation with growth parameters of endemic and invasive fish from a coastal wetland
Researchers quantified microplastic ingestion in endemic and invasive fish species from Iran's Anzali Wetland, finding microplastics in gastrointestinal tracts of both species and examining relationships between contamination levels and fish growth parameters.
Source tracking microplastics pollution from Qarasu basin rivers to Gorgan Bay, Caspian Sea
Researchers tracked microplastic pollution from eight rivers in the Qarasu basin, Iran, to Gorgan Bay in the Caspian Sea across forest, residential, and agricultural land uses, finding MPs in 87% of fish sampled across nine species and identifying residential land use as a primary driver of elevated microplastic concentrations.
Tissue-specific accumulation and species-level variability of microplastics in four freshwater fish from the Dez River, Iran
Researchers measured microplastic contamination in four commercially important fish species from the Dez River, Iran, finding tissue-specific accumulation patterns that varied by species, with gills accumulating more particles than intestines or muscle across all four species.
Bioaccumulation effects of microplastics and heavy metals pollutants in the dominant freshwater fish species in the Longkou entry of Raohe River, Lake Poyang Basin
Eight freshwater fish species from a Chinese lake all contained microplastics in their digestive tracts and gills, along with elevated heavy metals in their muscle tissue. The co-occurrence of microplastics and heavy metals in commonly consumed fish raises concerns about compounded food safety risks for people in this region.
A global synthesis of microplastic contamination in wild fish species: Challenges for conservation, implications for sustainability of wild fish stocks and future directions
Researchers conducted a global synthesis analyzing 260 field studies covering over 1,000 fish species and found that microplastics have been recorded in 830 wild fish species, including 606 species important to commercial fisheries. Among the affected species, 34 are classified as globally threatened on the IUCN Red List. The study highlights that microplastic contamination is widespread across wild fish populations, with implications for both conservation and food safety.
Occurrence and characteristics of microplastics in fish of the Han River, South Korea: Factors affecting microplastic abundance in fish
Microplastics were detected in 106 fish from 22 species at three sites in South Korea's Han River, with an average of 16-20 particles per individual and downstream sites showing the highest contamination, reflecting greater human activity and urban inputs near the river mouth.