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Open AccessPartial dechlorination of 2,4,4′-trichlorobiphenyl (PCB 28) mediated by recombinant human CYP1A2
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Article
Evaluating non-targeted analysis methods for chemical characterization of organic contaminants in different matrices to estimate children’s exposure
Children are vulnerable to environmental exposure of contaminants due to their small size, lack of judgement skills, as well as their proximity to dust, soil, and other environmental sources. A better understa...
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Article
Spatial distribution of per- and polyfluoroalkyl substances (PFAS) in waters from Central and South Florida
Per- and polyfluoroalkyl substances (PFAS) are notoriously persistent pollutants that are found ubiquitously present in aquatic environments. They pose a big threat to aquatic life and human health given the b...
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Article
Application of an Improved Chloroform-Free Lipid Extraction Method to Staghorn Coral (Acropora cervicornis) Lipidomics Assessments
Lipids are excellent biomarkers for assessing coral stress, although staghorn coral data (Acropora cervicornis) is lacking. Lipid extraction is the most critical step in lipidomic assessments, usually performed u...
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Article
Drinking water pollutants may affect the immune system: concerns regarding COVID-19 health effects
The current coronavirus pandemic is leading to significant impacts on the planet, changing our way of life. Although the COVID-19 virus mechanisms of action and pathogenesis are still under extensive research,...
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Assessment of Sucralose, Caffeine and Acetaminophen as Anthropogenic Tracers in Aquatic Systems Across Florida
Sucralose is one of the most popular artificial sweeteners worldwide. Due to its high stability, persistence and low removal efficiency in wastewater treatment plants, sucralose has been used as an indicator o...
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Article
Open AccessTelomerase gene expression bioassays indicate metabolic activation of genotoxic lower chlorinated polychlorinated biphenyls
Polychlorinated biphenyls (PCBs) are ubiquitously occurring pollutants with different chemical and toxicological properties. In this study we evaluated blood plasma samples of two PCB-exposed cohorts for their...
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Article
Using Polydimethylsiloxane (PDMS) Pellets to Create an Absorption Model for the Determination of Equilibrium Concentrations of Dissolved Contaminants in the Aquatic Environment
Polydimethylsiloxane (PDMS) is a polymer material with high absorptive properties increasingly used as a passive environmental sampler for persistent organic compounds. However, the partitioning behavior of hy...
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Article
Open AccessAccelerated telomere shortening in peripheral blood lymphocytes after occupational polychlorinated biphenyls exposure
Polychlorinated biphenyls (PCBs) are organochlorine pollutants with a worldwide dissemination. We examined telomere length (TL) in peripheral blood cells of 207 individuals with a high body burden of PCBs due ...
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Article
Occurrence and distribution of PCB metabolites in blood and their potential health effects in humans: a review
In recent years, attention has been directed to chemicals with possible endocrine-disrupting properties. Polychlorinated biphenyls (PCBs) and their metabolites belong to one group of environmental contaminants...
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Analytical approaches for the determination of PCB metabolites in blood: a review
Polychlorinated biphenyls (PCBs) are among the most ubiquitous pollutants in the environment, and their metabolism leads to the formation of hydroxylated PCBs (OH-PCBs) and methyl sulfone PCBs (MeSO2-PCBs). These...
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Article
Open AccessOnline solid phase extraction liquid chromatography tandem mass spectrometry (SPE-LC-MS/MS) method for the determination of sucralose in reclaimed and drinking waters and its photo degradation in natural waters from South Florida
Sucralose has gained popularity as a low calorie artificial sweetener worldwide. Due to its high stability and persistence, sucralose has shown widespread occurrence in environmental waters, at concentrations ...
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Article
Outcompeting GC for the detection of legacy chlorinated pesticides: online-SPE UPLC APCI/MSMS detection of endosulfans at part per trillion levels
Endosulfan, the last remaining organochlorine pesticide, has been the subject of a number of international regulations and restriction/banning action plans worldwide. Occurrence of endosulfan residues in South...
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Article
Degradation Studies of New Substitutes for Perfluorinated Surfactants
Perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) are manmade, stable perfluorosurfactants. The properties of perfluoroalkylated compounds that cause them to persist in the environment are als...
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Article
Long Chain Perfluorinated Alkyl Acids Derivatisation and Identification in Biota and Abiota Matrices Using Gas Chromatography
An analytical method involving derivatisation of perfluorocarboxylic acids for their analysis in abiotic and biotic matrices is presented. Derivatisation of the acid group to form a suitable alkyl ester provid...
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Article
Determination of Perfluorooctanoic Acid and Perfluorooctane Sulfonate in Lake Victoria Gulf Water
In this study we present a report of investigation from the screening of perfluorooctanoic acid and perfluorooctane sulfonate in Lake Victoria Gulf and in its source rivers. The first determined levels of perf...