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Phenanthrene toxicity during early development of the neotropical tree frog Dendropsophus branneri.
Aquat Toxicol
January 2025
Programa de Pós-Graduação em Biologia Animal, Centro de Biociências, Universidade Federal de Pernambuco, Av. Professor Moraes Rego, S/N - Cidade Universitária, Recife 50670-420, Brazil; Aquatic Ecotoxicology Laboratory, Centro de Biociências, Departamento de Zoologia, Universidade Federal de Pernambuco, Av. Professor Moraes Rego, S/N - Cidade Universitária, Recife 50670-420, Brazil. Electronic address:
Phenanthrene is considered a priority polycyclic aromatic hydrocarbon due to its ubiquitous presence in aquatic and terrestrial environments and its toxic potential. Tadpoles are sensitive ecotoxicological models that provide important information regarding effects of contaminants in amphibian species. The goal of the present study was to generate information regarding the acute and chronic toxicity of phenanthrene to the neotropical tree frog Dendropsophus branneri early life stages.
View Article and Find Full Text PDFSimple and sensitive monitoring of polycyclic aromatic hydrocarbons in edible oils by polydimethylsiloxane/pyrazine-based hyper-crosslinked polymer coated stir bar sorptive extraction followed by gas chromatography-mass spectrometry detection.
Anal Chim Acta
February 2025
Food Laboratory of Zhongyuan, Luohe, 462000, Henan Province, PR China.
Background: Edible oils are susceptible to contamination with polycyclic aromatic hydrocarbons (PAHs) throughout production, storage, and transportation processes due to their lipophilic nature. The necessity of quantifying PAHs present in complex oil matrices at trace levels, which bind strongly to impurities in oil matrices, poses a major challenge to the accurate quantification of these contaminants. Therefore, the development of straightforward and effective methods for the separation and enrichment of PAHs in oil samples prior to instrumental analysis is paramount to guaranteeing food safety.
View Article and Find Full Text PDFGeographical impact on the distribution of polycyclic aromatic hydrocarbons (PAHs) in hilly terrain topsoil: A case study at Chongqing, SW, China.
J Hazard Mater
January 2025
Key Laboratory of Sedimentary Basin and Oil and Gas Resources, China Geological Survey, Ministry of Land and Resources & Chengdu Center of Geological Survey, Chengdu 610081, China; College of Materials and Chemistry& Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China. Electronic address:
The distribution and transport of polycyclic aromatic hydrocarbons (PAHs) in urban environments are influenced by both anthropogenic sources and natural landscape features. While previous research has primarily focused on human activities as drivers of PAH pollution, the role of terrain-especially in cities with complex topographies-remains underexplored. To investigate the effect of terrain features on PAH distribution and transport, we analyzed topsoil samples evenly distributed in Chongqing, a city with hilly terrain (elevation: 48-2300 m).
View Article and Find Full Text PDFWeighted comprehensive risk assessment and pollution analysis of long-term printing and dyeing sludge landfills in an industrialized Chinese city.
Environ Pollut
January 2025
College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China.
Sludge landfilling is widely used in China, accounting for approximately 65% of total sludge disposal, due to its simplicity and cost-effectiveness. However, with increasing land scarcity and stricter environmental regulations, the Chinese government has emphasized reducing sludge landfilling. Despite these efforts, sludge historically disposed of in landfills continues to pose risks, including heavy metal leaching and contamination of groundwater and soil.
View Article and Find Full Text PDFBiochar in the Remediation of Organic Pollutants in Water: A Review of Polycyclic Aromatic Hydrocarbon and Pesticide Removal.
Nanomaterials (Basel)
December 2024
Faculty of Sciences, University of Novi Sad, 21000 Novi Sad, Serbia.
This review explores biochar's potential as a sustainable and cost-effective solution for remediating organic pollutants, particularly polycyclic aromatic hydrocarbons (PAHs) and pesticides, in water. Biochar, a carbon-rich material produced from biomass pyrolysis, has demonstrated adsorption efficiencies exceeding 90% under optimal conditions, depending on the feedstock type, pyrolysis temperature, and functionalization. High surface area (up to 1500 m/g), porosity, and modifiable surface functional groups make biochar effective in adsorbing a wide range of contaminants, including toxic metals, organic pollutants, and nutrients.
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