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61,005 resultsShowing papers similar to Multiple Organic Contaminants Determination Including Multiclass of Pesticides, Polychlorinated Biphenyls, and Brominated Flame Retardants in Portuguese Kiwano Fruits by Gas Chromatography
ClearSimultaneous determination of persistent and emerging organic pollutants in microplastics
Researchers developed and validated a new analytical method to simultaneously detect 45 persistent and emerging organic pollutants sorbed onto microplastics. The method was tested on several polymer types including polypropylene and polyethylene, both pristine and weathered, using solvent extraction and gas chromatography-mass spectrometry. The study provides a practical tool for assessing the chemical contamination that microplastics can carry and transport through the environment.
Assessing Emerging and Priority Micropollutants in Sewage Sludge: Environmental Insights and Analytical Approaches
Researchers developed an analytical method using QuEChERS extraction combined with chromatography to detect 42 organic micropollutants in sewage sludge from Portuguese wastewater treatment plants. Sixteen compounds were found, including the persistent organochlorine pesticide alpha-endosulfan in all seven samples tested.
Simple multi-residue analysis of persistent organic pollutants and molecular tracers in atmospheric samples
Researchers developed a streamlined analytical method to simultaneously detect a wide range of persistent organic pollutants and molecular tracers in air samples using gas chromatography. This multi-residue approach offers a more efficient way to monitor atmospheric contamination by hazardous chemicals.
Determination of organochlorine pesticides adsorbed on plastic pellets
Researchers analyzed organochlorine pesticides adsorbed onto plastic pellets found in coastal environments, contributing to understanding of how plastic debris accumulates and concentrates toxic chemicals. Plastic pellets, a type of microplastic, can act as carriers bringing persistent organic pollutants into marine food webs.
Xenovolatilomic profiling of Hass avocado ( Persea americana Mill.) tissues exposed to endosulfan: identification of potential toxicity biomarkers
Researchers applied xenovolatilomic profiling using GC-MS to identify potential toxicity biomarkers in Hass avocado tissues exposed to the pesticide endosulfan. The study explored biochemical alterations through volatile organic compound profiling, offering insights into how persistent organic pollutants affect plant biochemistry.
The Analysis and Risk Assessment of Organic Pollutants in Food Products
This review analyzes organic pollutants -- including pesticides, polycyclic aromatic hydrocarbons, plasticizers, and microplastics -- found in food products, examining their sources, analytical detection methods, and risk assessment frameworks to evaluate human dietary exposure.
A Facile and Rapid Strategy for Quantifying PCBs in Cereals Based on Dispersive Solid-Phase Extraction and Gas Chromatography–Mass Spectrometry: A Reference for Safety Concerns in Sustainable Textiles
Researchers developed a rapid method using dispersive solid-phase extraction and gas chromatography–mass spectrometry to detect 18 polychlorinated biphenyls in cereals, incorporating carbon nanotubes as a novel cleanup material to improve accuracy and reduce matrix interference.
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.
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.
A review of polybrominated diphenyl ethers and novel brominated flame retardants in Chinese aquatic environment: Source, occurrence, distribution, and ecological risk assessment
Researchers reviewed a decade of data on polybrominated diphenyl ethers and related brominated flame retardants in Chinese surface water and sediment, tracing their entry pathways (including microplastic decomposition) and finding that the highest contamination risk is concentrated near coastal e-waste dismantling sites.
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 Micropollutants in the Different Environmental Compartments
Not a microplastics paper — this study measures organic micropollutants (pharmaceuticals, flame retardants, personal care products) in air, river water, irrigation water, and groundwater in Mexico using gas chromatography, finding widespread contamination that poses human health risks.
Assessing the chemical interactions and biological effects of a petrochemical and bio-based plastic with a common plastic flame retardant and solvent
Researchers assessed the combined chemical interactions and biological effects when organisms were exposed to both petrochemical and agricultural contaminants simultaneously. Mixture effects were often greater than predicted by individual chemical toxicity, highlighting the importance of studying realistic multi-contaminant exposures.
Concentrations of Pesticides Residues in Grain Sold at Selected Markets of Southwest Nigeria
This study measured pesticide residue concentrations in grains sold at markets in southwest Nigeria, finding detectable levels of several agricultural chemicals. Pesticide contamination of food crops is a persistent public health concern in regions with limited regulatory oversight.
Analysis of chlordecone and its transformation products in environmental waters by a new SPME-GC-MS method and comparison with LLE-GC-MS/MS and LLE-LC-MS/MS: A case study in the French West Indies
Researchers developed a new analytical method to detect chlordecone — a banned but long-persistent pesticide still contaminating soil and water in the French West Indies — along with its breakdown products, which had previously been underdetected. The study found that existing routine monitoring methods may overestimate or underestimate certain compounds, calling for improved standardized protocols to accurately track this toxic legacy pollutant.
Study of metal and organic contaminants transported by microplastics in the Lebanese coastal environment using ICP MS, GC-MS, and LC-MS
Researchers conducted an untargeted analysis of metal and organic contaminants transported by microplastics along the Lebanese coast, identifying diverse pollutant classes adsorbed onto plastics using ICP-MS, GC-MS, and LC-MS techniques.
Thermal Desorption and Extraction Coupled With Gas Chromatography and Mass Spectrometry for the Quantification of Polystyrene Nanoplastic in Pak Choi
This methods paper describes a thermal desorption and extraction approach coupled with gas chromatography-mass spectrometry for detecting plastic-associated chemicals including plasticizers and flame retardants in environmental samples with high sensitivity.
Organic Pollutants Associated with Plastic Debris in Marine Environment: A Systematic Review of Analytical Methods, Occurrence, and Characteristics
This systematic review summarizes research on organic pollutants that attach to plastic debris in marine environments. The findings are concerning for human health because microplastics in the ocean can absorb and carry toxic chemicals like pesticides and flame retardants, and when marine life ingests these contaminated particles, the pollutants can move up the food chain to our seafood.
Organic pollutants in marine plastic debris from Canary Islands beaches
Microplastic pellets and fragments collected from beaches across the Canary Islands were found to contain a wide range of organic pollutants including PCBs, PAHs, and organochlorine pesticides. The study highlights that beached microplastics in this Atlantic archipelago can be significant reservoirs of toxic organic contaminants with risks to marine organisms.
A Relevant Screening of Organic Contaminants Present on Freshwater and Pre-Production Microplastics
Target screening for PCBs, organochlorine pesticides, and PAHs plus non-target chemical profiling was conducted on environmental MPs from an Italian river and pre-production industrial MPs, finding distinct contamination profiles and identifying industrial particles as carrying factory-specific organic contaminants.
Analysis of Volatile Organic Compounds in Textiles: Insights from GC–MS with Metal Content Assessment Using ICP-MS
Researchers applied headspace GC-MS and ICP-MS to analyze volatile organic compounds and trace metals in textile samples of different origins and compositions. PCA distinguished textiles by chemical profile with origin, revealing distinct VOC signatures from Asian and European textiles and detecting hazardous compounds including phthalates and chlorophenols, with implications for textile chemical safety and microplastic-associated chemical release.
Detection of Adsorbed Chlordecone on Microplastics in Marine Sediments in Guadeloupe: A Preliminary Study
Researchers conducted a preliminary study detecting the organochlorine pesticide chlordecone adsorbed onto microplastics in marine sediments from Guadeloupe, where the pesticide was heavily used in banana cultivation from 1972 to 1993. The study found that microplastics in contaminated sediments can carry legacy pollutants, potentially increasing their bioavailability to marine organisms.
Target and Suspect Analysis with High-Resolution Mass Spectrometry for the Exhaustive Monitoring of PCBs and Pesticides in Posidonia oceanica Meadows and Sediments
Researchers used high-resolution mass spectrometry to simultaneously detect polychlorinated biphenyls (PCBs) and pesticides in the marine seagrass Posidonia oceanica and surrounding sediments without damaging the plants, finding that contaminant distribution differed significantly between plant tissues and sediment compartments.
Organic pollutants in microplastics from two beaches of the Portuguese coast
Microplastic samples from two Portuguese beaches were analyzed for persistent organic pollutants including PAHs and PCBs, with sorbed concentrations varying by plastic color and degree of weathering. The study confirms that beached microplastics carry toxic organic chemicals and that older, more weathered particles tend to carry higher contaminant loads.