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61,005 resultsShowing papers similar to Assessment of Radon Concentrations in Marine Biota of the Iraqi Marine Environment
ClearNatural radioactivity transfer factors from soil to plants in Wasit governorate marsh
This Iraqi study measured natural radioactivity in soils and plants in a marsh area of Wasit governorate to assess radiation exposure risks. While focused on radioactivity rather than microplastics, it contributes to the broader assessment of environmental contamination in this ecologically important wetland region.
Microplastic Bioaccumulation by Tiger Snail (Babylonia spirata): Application of Nuclear Technique Capability using Polystyrene Labelled with Radiotracer 65Zn
Researchers used radiotracer-labeled polystyrene microplastics to quantify bioaccumulation in tiger snails (Babylonia spirata), demonstrating that nuclear techniques can effectively track microplastic uptake in marine organisms and revealing size-dependent accumulation patterns.
Radioactivity distributions and biohazard assessment of coastal marine environments of niger-delta, Nigeria
Researchers assessed radioactivity and pollution levels in the coastal marine environment of Nigeria's Niger Delta. They found that radionuclide concentrations in sediments and water exceeded recommended safety limits, with certain fish species accumulating higher levels of radioactive elements. The study recommends continuous monitoring of these polluted coastal waters to protect both ecological and human health.
Marine microplastics fuel long-range transport of radioactive nuclides: A review
This review examines how marine microplastics adsorb radioactive nuclides and transport them over long distances, discussing the implications of plastic-facilitated radionuclide dispersal for ocean monitoring and the compounding environmental risks from co-occurring plastic and nuclear contamination.
Exploring New Frontiers in Marine Radioisotope Tracing – Adapting to New Opportunities and Challenges
This review examined how radioisotope tracing techniques developed over 150 years are adapting to new opportunities in marine and coastal science, covering applications from cellular-level studies to ocean basin-scale environmental tracing. The authors explored how nuclear techniques can be applied to understand how aquatic organisms respond to stressors including plastic pollution.
Controlled Release of Radioactive Water from the Fukushima Daiichi Nuclear Power Plant: Should We Be Concerned?
This paper discusses the controlled release of radioactive water from the Fukushima nuclear disaster site into the ocean, raising concerns about seafood safety and long-term environmental health effects. While focused on radioactive contamination rather than microplastics, the study is relevant because it highlights how ocean pollutants can accumulate in marine life and move up the food chain to humans. Both radioactive materials and microplastics share this pathway of exposure through seafood consumption.
Biofilm-enhanced adsorption of strong and weak cations onto different microplastic sample types: Use of spectroscopy, microscopy and radiotracer methods
Researchers used radiotracer, spectroscopy, and microscopy methods to show that biofilm-coated environmental plastics adsorb radioactive cesium and strontium — radionuclides associated with nuclear releases — though at rates much lower than natural sediments, confirming that plastics act as a minor but measurable sink for environmental radioactivity.
Abundance and Distribution of Microplastics in Invertebrate and Fish Species and Sediment Samples along the German Wadden Sea Coastline
Researchers collected 1,585 invertebrates, 310 fish, and 12 sediment cores from 10 sites along the German Wadden Sea coast to assess microplastic contamination using Nile red fluorescence microscopy and micro-Raman spectroscopy. Microplastics were found in all species and sites, with contamination rates of 79-94% across species and sediment concentrations up to 8,128 particles/kg, identifying Mytilus edulis and Platichthys flesus as the most suitable monitoring species.
Application of nuclear analysis for bioaccumulation of microplastics with iodine-131 in marine organisms
Researchers developed a method using iodine-131 labeled polystyrene to track microplastic accumulation in mangrove plants and milkfish through nuclear analysis. They found that both organisms absorbed the labeled microplastics, with accumulation patterns varying between plant roots and fish tissue. The study demonstrates that radiotracer techniques can be a valuable tool for understanding how microplastics move through marine food chains.
Microplastics as vectors of radioiodine in the marine environment: A study on sorption and interaction mechanism
Researchers investigated microplastics as potential vectors of radioiodine in the marine environment, finding that different polymer types exhibited varying sorption capacities for radioiodine, revealing a previously unstudied pathway for radionuclide transport.
Application of nuclear techniques to environmental plastics research
This review examines how nuclear techniques — including neutron activation analysis and isotope tracing — can be applied to environmental plastics research to trace polymer sources, measure contaminant uptake, and study degradation pathways. Nuclear methods offer unique analytical capabilities for addressing specific questions about microplastic behavior that conventional approaches cannot resolve.
A Preliminary Study on the “Hitchhiking” of Radionuclides on Microplastics: A New Threat to the Marine Environment from Compound Pollution
This preliminary study examined whether radionuclides can adsorb onto microplastic surfaces and be transported through the environment alongside them, identifying the physicochemical properties of microplastics that facilitate radionuclide hitchhiking and the associated contamination risks.
The application of nuclear technique for measuring the bioaccumulation of microplastic in oyster (Crassostera Gigas)
Researchers used nuclear techniques with radioiodine (131I)-labeled polystyrene to measure the bioaccumulation of microplastics in Pacific oysters (Crassostera gigas), examining how salinity levels and microplastic concentrations affect bioaccumulation and elimination kinetics using a single-compartment biokinetic model.
Diet characteristics of tidal creek-associated fishes of the northeastern Arabian Sea with special reference to microplastic ingestion
Researchers characterized the diet of fishes associated with tidal creeks in the northeastern Arabian Sea, finding evidence of microplastic ingestion mixed with natural prey items, reflecting environmental plastic contamination in this coastal fishing area.
Microplastics in sediments and fish from the Red Sea coast at Jeddah (Saudi Arabia)
Microplastics were found in nearshore sediments at all sampled stations along the Jeddah coast of Saudi Arabia's Red Sea, and in about half of 140 sampled fish. The findings demonstrate that even the Red Sea — an important but less-studied ocean region — is experiencing widespread microplastic contamination.
Microplastic occurrence in selected aquatic species of the Persian Gulf: No evidence of trophic transfer or effect of diet
Researchers examined microplastic contamination in six fish species, one mollusk, and three crustacean species from the Persian Gulf, finding no evidence of trophic transfer of microplastics or dietary effects on contamination levels across species.
A new approach to extracting biofilm from environmental plastics using ultrasound-assisted syringe treatment for isotopic analyses
Researchers developed an ultrasound-assisted syringe extraction method for recovering biofilms from environmental plastic debris, enabling stable carbon and nitrogen isotope analysis and radiocesium quantification, and found that river-mouth plastisphere biofilms in Japan carried up to 820 Bq/kg of radiocesium, demonstrating that plastic-associated biofilms can serve as vectors for radionuclide transport in coastal environments.
Microplastic prevalence, diversity and characteristics in commercially important edible bivalves and gastropods in relation to environmental matrices
Researchers assessed microplastic abundance and characteristics in the tissues of commercially important bivalves and gastropods from the southwest coast of India, finding MPs across all five species examined and raising concerns about seafood safety.
Microplastic contamination in commercially important bivalves from the southwest coast of India
Microplastics were detected in water and three commercially important bivalve species along the southwest coast of India, with concentrations varying by species and collection site. The presence of plastic particles in filter-feeding shellfish intended for human consumption raises concerns about dietary exposure.
Occurrence and spatial distribution of microplastics in sediment and fish along the Persian Gulf—a case study: Bushehr Province, Iran
Researchers investigated microplastic contamination in sediments and fish across 16 stations along the Bushehr Province coastline in the Persian Gulf, finding a mean abundance of 57.19 particles/kg in sediments — dominated by black fragments — and up to 9 microplastic particles per fish, with black particles again most prevalent.
Unfolding the interaction of radioactive Cs and Sr with polyethylene-derived microplastics in marine environment
Researchers investigated how polyethylene microplastics in the marine environment interact with radioactive cesium and strontium. They found that as microplastics age in seawater and develop biofilms, their ability to absorb these radioactive elements increases significantly. The study provides evidence that microplastics could act as previously unrecognized carriers of radioactive contamination in ocean environments.
Unfolding the interaction of radioactive Cs and Sr with polyethylene-derived microplastics in marine environment
A mesocosm study examined how radioactive cesium and strontium interact with pristine, radiation-exposed, and marine-weathered polyethylene microplastics, finding that environmental aging—through biofilm formation and surface roughening—significantly increased the plastic particles' capacity to sorb radioactive contaminants.
Microplastics in fishes of commercial and ecological importance from the Western Arabian Gulf
Researchers examined microplastics in the gastrointestinal tracts of nine commercial fish species from the Saudi EEZ of the Arabian Gulf across coastal, pelagic, and reef habitats, finding a relatively low overall contamination rate (0.057 items per fish) but with variation by species and habitat.
Microplastic Abundance in Edible Crabs and Gastropods on the Blanakan Coast
Researchers sampled water, sediment, crabs, and gastropods along the Blanakan coast of Indonesia and detected microplastics in all sample types, with fragments, films, fibers, and pellets all present — suggesting widespread contamination that poses a food safety concern for local seafood consumed by humans.