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Glass reinforced plastic (GRP) a new emerging contaminant - First evidence of GRP impact on aquatic organisms
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Scientists discovered that dust from fiberglass boats and materials (called GRP) can seriously harm small aquatic creatures like mussels and water fleas, causing inflammation in their organs and making it hard for them to swim or stay afloat. This matters because it's the first evidence that this common but overlooked material is polluting waterways much like microplastics do, and since these tiny creatures are the base of the food chain that eventually reaches our dinner plates, contamination here could work its way up to affect the fish and shellfish we eat.
Plastics and synthetic materials are polluting the world's oceans. In this study we exposed juvenile mussels, Mytilus edulis, to glass reinforced plastic (GRP) dust, under laboratory conditions. The study ran for a period of 7 days, to test for the morphological and potential physiological impacts of GRP. Infrared spectroscopy has revealed that the GRP resin material is poly diallyl phthalate. In mussels, particulate glass and plastics were detected in the digestive tubules and gills, with a suite of inflammatory features observed in all examined organs. In parallel, we observed the effect of powdered GRP on swimming behaviour and survival of water fleas, Daphnia magna. Polymer particles and fibreglass adhered to the filament hairs on appendages, including the caudal spine, in exposed organisms. Most importantly, swimming impairment and sinking of the animals were recorded shortly after exposure. The potential implications for severe localized impact of GRP on aquatic environment are discussed.
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This review summarizes research on microplastics as aquatic contaminants, covering their origins, global distribution, and harmful effects on aquatic animals including impaired growth, oxidative stress, disrupted gut microbiota, and reproductive and immune system damage.
Impact of Microplastics on AquaticOrganisms and Human Health: A Review
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This review examines how microplastics from degraded plastic debris accumulate in aquatic environments, are ingested by organisms at all levels of the food chain, and may transfer to humans through seafood. The evidence warrants concern about microplastic contamination as an emerging public health issue.
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Tiny plastic bits called microplastics are showing up throughout our oceans, and this review pulls together existing research showing they're building up in fish and other sea life. Since we eat seafood, these plastics can move up the food chain and into our bodies, raising concerns about long-term health effects that scientists are still working to understand. The researchers stress that we need more studies and stronger action to cut plastic pollution before it causes bigger problems for both marine life and the people who depend on seafood for food.
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This review summarizes the ecotoxicological effects of microplastics on freshwater invertebrates, finding evidence of harm including reduced feeding, growth, and reproduction across multiple species. Because invertebrates are key links in food webs, these effects could have broader consequences for freshwater ecosystems.
Microplastics Impact on Water and Aquatic Systems
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This review examines how microplastics enter and affect aquatic ecosystems, summarising evidence of their impacts on fish, invertebrates, and other organisms from accumulation of toxic additives and physical effects. Researchers conclude that microplastics pose growing risks to aquatic biodiversity and to human health through the seafood supply chain.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.