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20 resultsShowing papers similar to Bioaccumulation of contaminants in wild seahorses collected from coastal China
ClearBioaccumulation of polycyclic aromatic hydrocarbons and their human health risks depend on the characteristics of microplastics in marine organisms of Sanggou Bay, China
This study found that the type and characteristics of microplastics present in marine organisms from Sanggou Bay, China, influenced how much of the harmful chemical pollutant PAH (polycyclic aromatic hydrocarbons) accumulated in their tissues. Smaller, more degraded microplastics carried more PAHs into organisms, raising the human health risk from eating contaminated seafood and highlighting that microplastics act as vehicles for other toxic chemicals.
Microplastics in specific tissues of wild sea urchins along the coastal areas of northern China
Sea urchins collected from 12 sites across nearly 3,000 km of northern China's coastline were analyzed for microplastic accumulation in specific tissues, with contamination detected at all sites and significant variation in abundance, type, and polymer composition across locations.
Effects of microplastics and attached heavy metals on growth, immunity, and heavy metal accumulation in the yellow seahorse, Hippocampus kuda Bleeker
Yellow seahorses (Hippocampus kuda) exposed to microplastics with attached heavy metals showed reduced growth, impaired immune function, and accumulation of metals in their tissues compared to controls. The combined effects of plastic particles and their associated heavy metal contaminants were more harmful than either stressor alone in this commercially important marine species.
Polycyclic aromatic hydrocarbons affiliated with microplastics in surface waters of Bohai and Huanghai Seas, China
Microplastics collected from surface waters of the Bohai and Huanghai Seas in China were found to carry polycyclic aromatic hydrocarbons (PAHs) at concentrations exceeding those in surrounding water, acting as concentrators of these carcinogenic compounds. The study documents that microplastics in heavily industrialized Chinese coastal seas accumulate PAHs that can be transferred to organisms that ingest them.
Microplastics in marine-derived traditional Chinese medicine, potential threat to patients
Researchers detected microplastics in all nine types of marine-derived traditional Chinese medicines tested, with abundances ranging from 0.07 to 9.53 items per gram, representing the first documented evidence of microplastic contamination in these widely consumed medicinal products.
Distribution and co-occurrence of microplastics and co-existing pollutants in bottom water and sediment of the East China Sea
This study characterized the co-occurrence of microplastics and co-existing pollutants (heavy metals and plastic additives) in bottom water and sediment of the East China Sea. Microplastics were widely distributed and carried adsorbed chemical contaminants at concentrations posing potential ecological risks, with plastic-associated pollutants correlated with specific polymer types and particle aging states.
Microplastics in marine ecosystems: exposure, ingestion, and accumulation dynamics in seahorses
This Portuguese-language thesis investigated microplastic exposure, ingestion, and accumulation dynamics in seahorses from coastal marine environments. The study characterized microplastic types found in seahorse gastrointestinal tracts and assessed how seahorse feeding ecology and habitat use influence their microplastic accumulation.
Microplastic contamination in seafood from Dongshan Bay in southeastern China and its health risk implication for human consumption
Researchers investigated microplastic contamination in eight popular seafood species from Dongshan Bay in southeastern China and assessed potential human health risks. The study characterized the abundance, size, shape, and polymer type of microplastics found in the seafood samples. The findings suggest that consuming contaminated seafood represents a meaningful exposure pathway for microplastic ingestion, though the specific health implications require further study.
Microplastics and polycyclic aromatic hydrocarbons (PAHs) in Xiamen coastal areas: Implications for anthropogenic impacts
Researchers measured both microplastic abundance and polycyclic aromatic hydrocarbon (PAH) concentrations in surface water and sediments of Xiamen coastal areas in southeast China. The study found that microplastic distribution correlated with urbanization and industrial activity patterns, suggesting that anthropogenic inputs drive co-contamination of coastal environments with both microplastics and chemical pollutants.
Distribution and Characteristics of Microplastics in Barnacles and Wild Bivalves on the Coast of the Yellow Sea, China
Researchers surveyed microplastic contamination in wild barnacles and bivalves along the Yellow Sea coast of China. They found microplastics in all sampled organisms, with fibers being the dominant type, and observed spatial variation in contamination levels across different coastal sites. The study provides baseline data on microplastic pollution in wild shellfish populations that are smaller and potentially more vulnerable than farmed species.
An evaluation of microplastic contamination in the marine waters and species in the coastal region of the South Yellow Sea, China
Researchers surveyed microplastic contamination across water, sediment, fish, and shellfish in the South Yellow Sea, China, finding plastics at every level of the food chain. Contamination was highest near river mouths that drain industrialized areas and decreased further offshore. Fish and bivalves showed significant microplastic uptake in their guts and gills, confirming that microplastics move from polluted rivers into coastal seafood that humans consume.
Enrichment Characteristics of Microplastics and Heavy Metals Accumulated in Bivalves in South Yellow Sea
Researchers analyzed three species of bivalves from the South Yellow Sea and found microplastics in all of them, averaging about nine particles per individual. The most common types were transparent fibers made of polyamide, and while heavy metals like zinc were also present, there was no clear statistical link between microplastic and heavy metal concentrations in the animals.
Prevalence of microplastics in animal-based traditional medicinal materials: Widespread pollution in terrestrial environments
Researchers found microplastics in all 20 types of traditional Chinese medicinal animal materials tested, with an average occurrence rate of 94.67% and polyethylene terephthalate (40.45%) as the dominant polymer. The findings indicate that terrestrial environments are significantly contaminated with microplastics and raise concerns about health exposure through traditional medicine consumption.
Microplastics Pollution and Their Potential Impact in Marine Systems: A Case Study in Shandong Peninsula, China
Researchers surveyed microplastic pollution in marine environments around China's Shandong Peninsula, documenting contamination levels and potential impacts on the region's important fishing, aquaculture, and tourism industries.
Decade of microplastic alteration in the southeastern black sea: An example of seahorse gastrointestinal tracts
Researchers compared microplastic contamination in seahorse gastrointestinal tracts from the Southeastern Black Sea between 2012 and 2022, finding a 32% increase in microplastic items over the decade alongside shifts in polymer composition.
Microplastic pollution in the environment and organisms of Xiangshan Bay, East China Sea: An area of intensive mariculture
Researchers assessed microplastic pollution across water, sediment, and marine organisms in Xiangshan Bay, a major mariculture area in China, finding that intensive aquaculture in the enclosed inner bay concentrated microplastics and that fish ingested more particles than other organisms.
Microplastic and associated emerging contaminants in marine fish from the South China Sea: Exposure and human risks
Researchers found microplastics in all 14 marine fish species tested from the South China Sea, along with antibiotics and PFAS chemicals. Fish with more microplastics in their guts also had higher levels of certain chemical contaminants in their flesh, suggesting microplastics may act as carriers that increase the amount of harmful chemicals in seafood consumed by humans.
Microplastics contamination in bivalves from the Daya Bay: Species variability and spatio-temporal distribution and human health risks
Researchers assessed microplastic contamination in six species of bivalves from Daya Bay, China, finding microplastics present in 87 to 93% of individuals sampled. Sediment-dwelling bivalves had higher microplastic levels than water-dwelling species, and the types of microplastics found in the shellfish matched those in the surrounding seawater and sediment. A risk assessment based on polymer hazard levels indicated that microplastic contamination in these bivalves may pose health risks to humans who consume them as seafood.
Microplastic pollution in wild commercial nekton from the South China Sea and Indian Ocean, and its implication to human health
This study surveyed microplastic occurrence in 13 commercially important fish and cephalopod species from the South China Sea and Indian Ocean, finding higher detection rates and MP abundances in Indian Ocean samples and estimating human exposure risk from seafood consumption.
Occurrence, characteristics and ecological risk assessment of microplastics in the surface water of the Central South China Sea
Researchers surveyed microplastic pollution in the central South China Sea and found concentrations ranging from 386 to over 4,200 particles per cubic meter of surface water, with much higher levels near the coast. The study revealed that conventional abundance-based risk assessments underestimate the true ecological danger because they overlook the specific toxicity of different plastic polymers. Polystyrene and PVC, though found in lower quantities, posed the highest ecological risk scores due to their greater toxicity.