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61,005 resultsShowing papers similar to Ecological and health risk assessment of heavy metals bioaccumulation in Ganges fish near Varanasi, India
ClearBioaccumulation and potential sources of heavy metal contamination in fish species in River Ganga basin: Possible human health risks evaluation
Researchers assessed heavy metal contamination in seven commonly consumed fish species from the Ganga River basin in India, measuring zinc, lead, copper, cadmium, and chromium levels. They found that chromium, cadmium, and lead concentrations in river water exceeded safe limits at all sampling sites, with the highest metal accumulation occurring in fish liver tissue. The health risk assessment indicated potential long-term hazards for human populations consuming fish from these contaminated river segments.
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.
Assessment of Heavy Metals, Microplastics Abundance, Pollution Level, and Contamination Risk in the Ganges Downstream
Heavy metals and microplastics were co-assessed in a marine environment, with pollution indices developed to characterize combined contamination levels. The integrated assessment approach helps regulators understand the combined chemical burden faced by marine organisms in polluted coastal areas.
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.
Carcinogenic and non-carcinogenic health risk assessment of river Ganges in different climatic conditions and regions of Uttarakhand, India
Researchers assessed health risks from heavy metals in the Ganges River, finding elevated arsenic at some sites and correlations between physicochemical parameters and metal concentrations.
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 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.
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.
Insights into the seasonal variation, distribution, composition and dynamics of microplastics in the Ganga River ecosystem of Varanasi City, Uttar Pradesh, India
Researchers measured microplastic pollution in the Ganga River in Varanasi, India, and found contamination in both water and sediment samples across all seasons. Concentrations were higher after the monsoon season, with common plastics like polyethylene terephthalate, polyester, and PVC dominating the samples. Since the Ganga is used for drinking water, bathing, and agriculture by millions of people, this contamination raises direct concerns about human exposure to microplastics.
Microplastics and heavy metals in freshwater fish: A comprehensive study of contamination and health risks
Researchers simultaneously assessed microplastic and heavy metal contamination in two fish species from Iran's Kashkan River, finding microplastics in 79% of the 48 specimens examined. The study also found heavy metal levels that exceeded safe limits, raising human health concerns for communities consuming these fish.
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.
Metal adsorption by naturally aged polymers in the river ganga: An environmental assessment
Researchers measured the adsorption of metals onto naturally aged microplastic polymers collected from the Ganga River, examining how plastics weathered under real environmental conditions accumulate heavy metals. Aged microplastics from the river showed significant metal adsorption capacity, suggesting they act as vectors transferring metals to aquatic organisms through the food chain.
Risk assessment of heavy metals in the freshwater lake sediments around Eppawala phosphate deposit, Sri Lanka
Not relevant to microplastics — this study assesses heavy metal (including chromium, cadmium, lead, and arsenic) contamination in freshwater lake sediments near a phosphate deposit in Sri Lanka, finding elevated concentrations likely linked to agricultural practices.
Metal adsorption by naturally aged polymers in the river ganga: An environmental assessment
Researchers investigated how naturally aged microplastics from the Ganga River adsorb metals, assessing the environmental risk of metal-loaded plastic particles in a major river system. The study found that aged microplastics adsorb higher concentrations of metals than virgin particles, increasing their potential for toxicity transfer.
Occurrence 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.
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.
Assessment of seasonal variation of heavy metal pollution and health risk in surface sediments at the Karnaphuli River confluences of Chattogram, Bangladesh
This paper is not directly about microplastics; it assesses seasonal heavy metal pollution in river sediments at Chattogram, Bangladesh, focusing on contamination indices and health risks from dermal exposure to metals like cadmium, lead, and arsenic.
Water quality assessment and genotoxicity in fishes of Karamana River, Kerala, India: an insight of microplastic pollution
This study assessed water quality and microplastic presence in water and native fish from Kerala's Karamana River, India, documenting MP concentrations and evaluating genotoxic effects in fish to characterize health risks in this freshwater ecosystem.
Microplastic Pollution in Ganga: Present Status and Future Need
This review documents the growing problem of microplastic pollution in the Ganges River in India, finding that the river is heavily contaminated with plastic particles from urban and industrial sources, threatening one of the world's most ecologically and culturally important waterways.
Assessment of microplastics and associated ecological risk in the longest river (Godavari) of peninsular India: A comprehensive source-to-sink analysis in water, sediment and fish
Researchers conducted a comprehensive survey of microplastic pollution throughout India's longest river, the Godavari, testing water, sediment, and fish from source to sea. They found microplastics throughout the entire river system and in the fish living there, highlighting that river pollution can transfer microplastics into organisms that people may eventually eat.
Environmental risk assessment of heavy metals and microplastics in marine biota along Gujarat coastline, India
Researchers assessed environmental risks from both heavy metals and microplastics in marine organisms collected along the Gujarat coastline in India, measuring contamination levels in multiple species. Combined contamination elevated ecological risk indices above safe thresholds at several coastal sites.
Concentrations, characteristics, and human health exposure assessment of microplastics and heavy metals in freshwater fish in a potable water supply reservoir
Researchers examined microplastic and heavy metal contamination in catfish and tilapia from a drinking water supply reservoir in Ghana. They found microplastics in all fish studied, with fibers being the most common type and polyethylene the dominant polymer, along with measurable levels of zinc, copper, and lead. The exposure assessment suggests that regular consumption of these fish could represent a notable pathway for human intake of both microplastics and heavy metals.
Microplastics and heavy metal contamination along a land-use gradient in a Himalayan foothill river: Prevalence and controlling factors
Researchers mapped microplastic and heavy metal contamination in a river flowing through India's Himalayan foothills, finding plastic particles at every sampling site. Concentrations were highest near industrial areas and human settlements, with polyethylene and polystyrene being the most common plastic types. The study shows how human activity drives plastic pollution even in relatively remote freshwater environments.
Histopathological alteration in the liver of Sardinella longiceps as a biomarker of heavy metal pollution in aquatic ecosystem.
This paper is not relevant to microplastics — it examines heavy metal (copper, chromium, manganese) accumulation and liver tissue damage in Indian oil sardines as an indicator of industrial pollution in a coastal ecosystem.