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61,005 resultsShowing papers similar to Occurrences of organophosphorus esters and phthalates in the microplastics from the coastal beaches in north China
ClearStudy of the Spatiotemporal Variations, Source Determination, and Potential Ecological Risk of Organophosphate Esters in Typical Coastal Tourist Resorts in China
This study analyzed the spatial distribution and ecological risk of twelve organophosphate ester (OPE) flame retardants in water and sediment from nineteen coastal tourist resorts along China's Shandong Peninsula. OPEs are plastic additives and flame retardants that leach from plastic products into the environment, and their co-occurrence with microplastics in coastal waters represents a combined chemical pollution concern.
Persistent organic pollutants carried on plastic resin pellets from two beaches in China
Researchers found that plastic resin pellets collected from two Chinese beaches contained significant concentrations of PAHs, PCBs, organochlorine pesticides, and other persistent organic pollutants sorbed to their surfaces. The findings confirm that plastic pellets act as vectors for long-range transport of multiple classes of hydrophobic chemical contaminants in marine environments.
Phthalates and organophosphate esters in surface water, sediments and zooplankton of the NW Mediterranean Sea: Exploring links with microplastic abundance and accumulation in the marine food web
Phthalate esters and organophosphate esters were measured alongside microplastics in surface seawater, sediment, and zooplankton from Marseille Bay in the northwestern Mediterranean Sea. Co-occurrence of microplastics and plastic additive chemicals in multiple environmental compartments including zooplankton confirmed trophic transfer of both particle and chemical contaminants.
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.
Distribution and Risk Assessment of Organophosphate Esters in Agricultural Soils and Plants in the Coastal Areas of South China
This study measured organophosphate esters, chemicals used as flame retardants and plasticizers in plastic products, in agricultural soils and crops along China's southern coast. These chemicals were found in every soil and plant sample tested, with some areas showing high ecological risk levels. While focused on chemical additives rather than microplastics directly, these are the same toxic compounds that leach from microplastics, showing how plastic-related chemicals contaminate the food supply.
Co-occurrence of light microplastics and phthalate esters in soils of China
Researchers investigated the co-occurrence of light microplastics and phthalate esters in Chinese soils, finding both pollutants present in all sampled agricultural and urban soils with significant correlations suggesting shared sources of plastic-derived contamination.
Occurrence and spatial distribution of phthalate esters in sediments of the Bohai and Yellow seas
Six phthalate esters were measured in sediments of the Bohai and Yellow seas, with sum concentrations averaging 9.1 ng/g and DEHP as the dominant compound (median 3.77 ng/g), with highest concentrations in coastal areas near industrial activity. The study provides baseline data on phthalate distribution in two important semi-enclosed Chinese seas and identifies associated risks to marine organisms.
Distribution and risks of microplastics and phthalate esters in the transition from inland river systems to estuarine and nearshore regions of the Yellow Sea, China
Researchers mapped the distribution of microplastics and phthalate chemicals across rivers, estuaries, and nearshore waters of the Yellow Sea in China. They found that pollution levels were highest in upstream urban areas and decreased toward more rural downstream zones, with fibers and polyethylene being the most common types. The study highlights how inland human activity drives microplastic and chemical contamination that eventually reaches the ocean.
Assessing the potential risk and relationship between microplastics and phthalates in surface seawater of a heavily human-impacted metropolitan bay in northern China
A survey of Jiaozhou Bay in northern China found a strong correlation between microplastic abundance and concentrations of phthalate plasticizers in surface seawater, with both higher near river inputs and sewage treatment plants. The ecological risk from phthalates was moderate for one compound (di-n-butyl phthalate), and overall microplastic pollution levels were also moderate.
The sorption of persistent organic pollutants in microplastics from the coastal environment
Researchers sampled microplastic pellets from six beaches around Taiwan and measured concentrations of persistent organic pollutants (dioxins, PCBs, PBDEs) on their surfaces, finding that pellets accumulated significant POPs loads with concentrations that correlated with proximity to industrial areas.
Organic pollutants in sedimentary microplastics from eastern Guangdong: Spatial distribution and source identification
Researchers examined the spatial distribution and sources of polycyclic aromatic hydrocarbons and organochlorine pesticides sorbed to microplastic pellets, fragments, and foam collected from eastern Guangdong beaches, evaluating whether pellets alone can serve as reliable proxies for global monitoring of hydrophobic organic contaminants.
Phthalate diester occurrence in marine feed and food (Mediterranean Sea)
Researchers detected phthalate diesters in Mediterranean Sea zooplankton, fish, and bivalves, with DEHP found in all zooplankton samples and 30% of fish, demonstrating how microplastics transport these endocrine-disrupting chemicals through marine food webs.
Potential risk of co-occurrence of microplastics and chlorinated persistent organic pollutants to coastal wetlands: Evidence from a case study
Researchers investigated the co-occurrence of microplastics and chlorinated persistent organic pollutants in coastal wetlands of Zhejiang, China, finding microplastics in 100 percent of samples. Although wetland microplastic levels were lower than other land types, the plastics showed strong capacity to adsorb and concentrate toxic organic chemicals. The study highlights the combined contamination risk that microplastics and persistent pollutants pose to sensitive coastal ecosystems.
Microplastic-sorbed persistent organic pollutants in coastal Mediterranean Sea areas of Tunisia
Researchers analyzed microplastics collected from four Tunisian Mediterranean beaches, finding they contained sorbed persistent organic pollutants including polychlorinated biphenyls and organochlorine pesticides, highlighting microplastics as vectors for toxic chemicals.
Microplastic pollution in sediments from the Bohai Sea and the Yellow Sea, China
Researchers sampled sediments from the Bohai Sea and Yellow Sea and found widespread microplastic contamination, with fibers and fragments as the dominant forms, and higher concentrations near river mouths and urban coastlines.
Hydrophobic organic contaminants affiliated with polymer-specific microplastics in urban river tributaries and estuaries
Researchers measured hydrophobic organic contaminants affiliated with different types of floating microplastics collected from tributaries and estuaries in the Pearl River Delta, South China. The study found that contaminants were highly concentrated in microplastics, with polyethylene carrying the largest share of pollutant outflow to coastal waters, suggesting that microplastics serve as significant transport vectors for toxic chemicals in aquatic environments.
Can Phthalates Be Considered as Microplastic Tracers in the Mediterranean Marine Environment?
This study assessed whether phthalate plasticizers could serve as tracers for microplastic pollution in Mediterranean coastal waters, examining their occurrence, distribution, and interactions with the marine environment in one of the world's plastic pollution hotspots.
Assessing the Interrelationship Between Microplastics and Polychlorinated Biphenyls Contamination in Chinese Mangrove Sediment
Researchers quantified polychlorinated biphenyl (PCB) concentrations on microplastics extracted from mangrove sediments across representative sites in China, investigating the interrelationship between MP pollution dynamics and PCB contamination in these critical intertidal ecosystems. The study reveals how mangrove sediments accumulate both MPs and co-associated hydrophobic organic contaminants, highlighting combined pollution risks.
A review of microplastic pollution in seawater, sediments and organisms of the Chinese coastal and marginal seas
This review compiled microplastic abundance and characteristics data from seawater, sediments, and marine organisms across China's coastal and marginal seas, finding widespread contamination linked to China's extensive plastic production and mismanaged waste streams.
Microplastics and associated polycyclic aromatic hydrocarbons in surface water and sediment of the Bay of Bengal coastal area, India: sources, pathway and ecological risk
Researchers surveyed microplastic contamination in surface water and sediment along two Bay of Bengal coastal beaches in India and found microplastics present at both sites. They also detected polycyclic aromatic hydrocarbons, a group of harmful chemicals, adsorbed onto the microplastic surfaces at concentrations that varied by particle shape. The study highlights that microplastics in coastal waters act as carriers for toxic organic pollutants, potentially increasing ecological risks in the marine environment.
Assessment of organophosphate flame retardants in Mediterranean Boops boops and their relationship to anthropization levels and microplastic ingestion
Flame retardant chemicals called organophosphates were detected in the muscle tissue of bogue fish from the Mediterranean, with higher concentrations in fish from more urbanized areas. Microplastics may act as carriers for these chemicals, concentrating them in fish tissue and potentially in people who eat seafood.
Characteristics and Health Risks of Phthalate Ester Contamination in Soil and Plants in Coastal Areas of South China
Researchers investigated phthalate ester contamination across 37 sites in coastal South China, finding widespread contamination in both soil and plants with concentrations posing potential health risks, particularly from the plasticizers DEHP and DBP.
Assessment of plastic pollution in the Bohai Sea: Abundance, distribution, morphological characteristics and chemical components
Plastic pollution in the surface water and sediments of China's Bohai Sea was assessed, finding widespread contamination with fragments and pellets, and identifying shipping, river discharge, and coastal aquaculture as major sources.
Levels of Phthalates, Bisphenol-A, Nonylphenol, and Microplastics in Fish in the Estuaries of Northern Taiwan and the Impact on Human Health
Researchers analyzed 600 fish from five river estuaries in northern Taiwan for endocrine-disrupting chemicals and microplastics. They found phthalates, bisphenol-A, nonylphenol, and microplastics across all sampling sites, with contamination levels varying by location and fish species, and estimated the potential human health implications from consuming these fish.