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Synthesis of a Bimetallic-Doped Phytate-Melamine Composite as an Efficient Additive for Epoxy Resins with High Fire Safety.
Polymers (Basel)
December 2024
College of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China.
The issue of hazardous smoke and toxic gases released from epoxy resins (EP), which often causes casualties in real fires, has limited its application. Therefore, we have developed a novel flame retardant based on a bimetallic-doped phytate-melamine (BPM) structure with Zn and Fe ions incorporated into the polymer matrix using a straightforward solution-based synthetic method. The combustion performance of the composite was evaluated using a cone calorimeter test, which showed that the peak heat release, total heat release, and total smoke production were reduced by 50%, 31.
View Article and Find Full Text PDFAir Pollution's Hidden Toll: Links Between Ozone, Particulate Matter, and Adolescent Depression.
Int J Environ Res Public Health
December 2024
Department of Psychology, University of Denver, Denver, CO 80208, USA.
Rising rates of depression among youth present a growing mental health crisis. Despite growing concerns regarding the risks of air pollution exposure on youth mental and physical health, associations between ambient air pollutants and depression have been largely overlooked in youth. In this cross-sectional study, we investigated associations between ozone, particulate matter, and depressive symptoms in adolescents across 224 Colorado census tracts (average age of 14.
View Article and Find Full Text PDFSargassum Inundations and the Risk of Hypertension Disorders Among Pregnant Women Living in the French Caribbean Island of Martinique.
Int J Environ Res Public Health
December 2024
Cardiovascular Research Team (UR5_3 PC2E), University of the French West Indies (Université des Antilles), 97200 Fort-de-France, France.
Since 2011, Caribbean territories have experienced massive and repeated sargassum seaweed inundations. Once on shore, sargassum degradation through anaerobic metabolism elicits the release of many noxious molecules, including hydrogen sulfide (HS) and ammonia (NH). HS has been long recognized as a malodorous and highly toxic gas, while chronic exposure has not been extensively explored.
View Article and Find Full Text PDFThe influence of ammonia-N and salinity levels on oxidative stress markers, hepatic enzymes, and acid phosphatase activity in Nile tilapia (Oreochromis niloticus).
Sci Rep
January 2025
Department of Fisheries, Faculty of Natural Resources, Isfahan University of Technology, Isfahan, 84156-8311, Iran.
The point of our study was to examine the interaction of ammonia-N poisoning and salinity on serum enzymes and oxidative stress factors of blood and liver in Nile tilapia (Oreochromis niloticus). The 50% lethal concentration (LC) in 96 h was 0.86 mg/L of ammonia-N.
View Article and Find Full Text PDFEnvironmental impact assessment of southern tehran wastewater treatment plant using life cycle assessment (LCA).
Sci Rep
January 2025
Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
The population has increased in recent decades, and as a result, the increase in urban wastewater has led to many environmental problems. In this study, the environmental impacts of the Southern Tehran treatment plant were assessed via life cycle assessment (LCA) (SimaPro 9.4.
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