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Long-term effects of petroleum mulch on concentration, health, and ecological risks of polycyclic aromatic hydrocarbons in sand dune soils of Khuzestan province, Iran.
Environ Sci Pollut Res Int
December 2024
Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg C, Denmark.
Environmental consequences of petroleum mulch application are crucial in regions prone to wind erosion and desertification. This study aimed to assess the long-term effects of petroleum mulching on soil polycyclic aromatic hydrocarbon (PAH) concentrations and the associated human and ecological risk indices. These indices include incremental lifetime cancer risk (ILCR), hazard index (HI), toxic equivalent concentration (TEQ), toxic unit (TU), and risk quotient (RQ) in soil samples from Khuzestan province, Iran.
View Article and Find Full Text PDFAccessibility of polycyclic aromatic hydrocarbon content in fishes from the region of the 2019 oil spill on the northeast Brazil coast.
Mar Pollut Bull
December 2024
Universidade Federal de Pernambuco, Departamento de Química Fundamental, Av. Jornalista Aníbal Fernandes, s/n, Cidade Universitária, 50740-560 Recife, PE, Brazil. Electronic address:
In August 2019, Brazil experienced its largest large oil spill, which impacted extensive areas and significantly affected the northeastern region, particularly Pernambuco. Polycyclic aromatic hydrocarbons (PAHs), major oil components, are critical for assessing fish contamination risks. This study presents two sample pretreatment methods for fish samples - ultrasound-enhanced air-assisted liquid-liquid microextraction (UE-AA-LLME) for low molar mass PAHs, and matrix solid-phase dispersion for high molar mass PAHs - followed by a Gas-Chromatography coupled to Mass Spectrometry (GC-MS) detection.
View Article and Find Full Text PDFThe Relationship Between Maternal Exposure to Endocrine-Disrupting Chemicals and the Incidence of Congenital Heart Diseases: A Systematic Review and Meta-Analysis.
Metabolites
December 2024
Department of Family and Community Medicine and Medical Education, College of Medicine, Taibah University, Madinah 42353, Saudi Arabia.
Background: Congenital heart diseases are among the most common birth defects, significantly impacting infant health. Recent evidence suggests that exposure to endocrine-disrupting chemicals may contribute to the incidence of congenital heart diseases. This study systematically reviews and analyzes the association between maternal endocrine-disrupting chemicals exposure and congenital heart diseases.
View Article and Find Full Text PDFElevated Toxicity and High-Risk Impacts of Small Polycyclic Aromatic Hydrocarbon Clusters on Microbes Compared to Large Clusters.
Environ Sci Technol
December 2024
Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, Yunnan China.
Polycyclic aromatic hydrocarbons (PAHs) are widespread contaminants that can accumulate in microorganisms, posing significant ecological risks. While previous studies primarily focused on PAH concentrations, the impacts of PAH self-clustering have been largely overlooked, which will lead to inaccurate assessments of their ecological risks. This study evaluates the toxic effects of four prevalent PAH clusters on microbes with an emphasis on comparing the cluster sizes.
View Article and Find Full Text PDFCrude Oil-Induced Reproductive Disorders in Male Goldfish: Testicular Histopathology, Sex Steroid Hormones, and Sperm Swimming Kinematics.
J Appl Toxicol
December 2024
South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Vodňany, Czech Republic.
Crude oil contamination has been shown to impair reproduction in aquatic animals through carcinogenic and genotoxic properties. Here, we assessed the endocrine-disrupting function of crude oil on male reproductive system based on testicular histology, sex steroid hormones, and fertility endpoints in adult male goldfish (Carassius auratus), which were exposed to 0.02- to 2-mg/L crude oil for 21 days (Experiment #1) or to 5- to 250-mg/L crude oil for 9 days (Experiment #2).
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