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Caracterización de POPs y PAHs en fragmentos plásticos: Estudio de Caso en el Callao
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Researchers characterized persistent organic pollutants (POPs) and polycyclic aromatic hydrocarbons (PAHs) adsorbed onto plastic fragments collected from a Colombian Caribbean beach. High concentrations of these toxic chemicals were found on weathered plastic surfaces, raising concerns about chemical transfer to organisms.
This study evaluates microplastic pollution, persistent organic pollutants (POPs), and polycyclic aromatic hydrocarbons (PAHs) in the Bay of Callao, Peru. Sampling was conducted at six stations from Playa Pachacútec to La Punta, 500 meters from the coast. The collected microplastics were quantified, identifying adsorbed contaminant groups: PAHs, polychlorinated biphenyls (PCBs), DDT metabolites (DDX), pentachlorobenzene (PeCB), hexachlorobenzene (HeCB), and hexachlorocyclohexane (HCHs). The results showed 97.1204 items/m³ of microplastics, equivalent to 5,170,073.7321 items/km². Concentrations were 1749 ng/g for PAHs, 151.7 ng/g for PCBs, 311 ng/g for DDX, 13.0 ng/g for PeCB and HeCB, and 3.72 ng/g for HCHs. Compared to other studies, the Bay of Callao presents similar or higher contamination levels, especially in PAHs and DDX. This underscores the need for mitigation measures to reduce marine pollution and protect human health.
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Plastic debris, persistent organic pollutants and their toxicity impacts in coastal areas in Central Chile
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Scientists tested plastic trash washing up on beaches in Chile and found it carries toxic chemicals, including flame retardants (PBDEs) at notably high levels, plus signs that these chemicals can damage DNA and harm living cells. Since this plastic debris eventually breaks down into microplastics that can enter waterways, seafood, and potentially our bodies, the findings are a reminder that ocean plastic isn't just an eyesore, it can be a chemical hazard too.
Persistent organic pollutants carried on plastic resin pellets from two beaches in China
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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.
Association between PAH and plastic fragments on Brazilian coast beaches: a baseline assessment
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Researchers conducted a baseline assessment of the association between polycyclic aromatic hydrocarbons (PAHs) and plastic fragments collected from beaches along the Brazilian coast, characterising how microplastics act as adsorption surfaces for these organic pollutants. The study found co-occurrence of PAHs and plastic fragments at sampled sites, establishing contamination baselines and informing understanding of the plastic-pollutant vector pathway.
Quantification of PAHs, PCBs and Pesticides adsorbed by plastic waste in the Togolese marine environment
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Researchers quantified polycyclic aromatic hydrocarbons, PCBs, and pesticides adsorbed onto plastic waste collected from Togo's marine environment. The findings confirm that ocean plastics act as concentrators of toxic legacy chemicals, amplifying their potential harm to marine life and humans who consume seafood from these waters.
Quantification of PAHs, PCBs and Pesticides adsorbed by plastic waste in the Togolese marine environment
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Researchers analyzed plastic waste collected along the Togolese coast and found it contaminated with PAHs and PCBs, demonstrating that marine plastics act as vectors for toxic organic pollutants. This adsorption of harmful chemicals onto plastic surfaces poses risks to marine organisms and potentially to humans who consume seafood.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.