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Evaluation of sources, spatial and temporal distribution, ecological and health risk associated with CAF (Caffeine) and DEET (N, N-diethyl-meta-toluamide) contamination in the urban groundwater parts of Vellore city, Tamilnadu, India.
Environ Geochem Health
January 2025
School of Civil Engineering, Vellore Institute of Technology, Tamil Nadu, Vellore, 632014, India.
Urban environments are heavily influenced by various activities, leading to contamination of water sources by emerging contaminants (ECs). Among these, caffeine (CAF) and N, N-diethyl-meta-toluamide (DEET) are notable ECs frequently found in domestic sewage due to human activities. Despite extensive research on emerging contaminants, limited studies have focused on the seasonal variations, human health and ecological risks of CAF and DEET in urban groundwater, particularly in Indian cities.
View Article and Find Full Text PDFAssociation of N, N-diethyl-m-toluamide (DEET) with arthritis among adult participants.
PLoS One
December 2024
Department of General Medicine, Beijing TianTan Hospital, Capital Medical University, Beijing, China.
Background: N, N-diethyl-m-toluamide (DEET), an active ingredient prevalent in insect repellents, has its effects on human health under ongoing debate and scrutiny.
Objective: This study aimed to investigate the association between exposure to DEET and arthritis outcomes within the broader adult demographic, leveraging data obtained from the National Health and Nutrition Examination Survey (NHANES).
Methods: 3-diethyl-carbamoyl benzoic acid (DCBA) was used as a specific indicator of DEET exposure.
Pesticide contamination and associated ecological risks in estuarine waters of Brazil's Legal Amazon.
Environ Sci Pollut Res Int
December 2024
Laboratório de Química Analítica E Ecotoxicologia (LAEC), Federal University of Maranhão (UFMA), Av. Dos Portugueses, 1966, São Luís, Maranhão, 65080-805, Brazil.
Pesticide contamination remains a significant environmental concern globally, with important implications for aquatic ecosystems. Despite being one of the world's largest pesticide consumers, monitoring and assessment of pesticide pollution are limited in Brazil, especially in sensitive regions like the Amazon. In this study, the occurrence and environmental risks of 8 pesticides of different classes, namely alachlor, atrazine, chlorfenvinphos, isoproturon, irgarol, simazine, diuron, and its transformation product DCPMU (1-(3,4-dichlorophenyl)-3-methyl urea) were analysed in surface water of the São Marcos Estuarine Complex (SMEC) in two consecutive years.
View Article and Find Full Text PDFFate of wastewater trace organic chemicals in vegetated biofiltration systems.
Water Res
December 2024
Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales (UNSW), High St, Kensington, NSW, 2052, Australia; Institute for Artificial Intelligence Research and Development of Serbia, 21000 Novi Sad, Serbia.
Vegetated biofiltration system (VBS) is an effective green technology for urban stormwater and greywater treatment. However, VBS is yet to be optimised for effective treatment of wastewater, particularly if it contains trace organic chemicals (TrOCs). The effect of plant species has not been addressed under TrOC wastewater loading.
View Article and Find Full Text PDFEvaluating the repellent effects of major essential oil components (Lamiaceae) on brown dog tick Rhipicephalus sanguineus sensu lato) using the larval repellent activity test.
Vet Parasitol
January 2025
Faculty of Science, Department of Biology, Akdeniz University, Antalya, Türkiye. Electronic address:
Article Synopsis
- * Carvacrol and geraniol showed strong repellent properties, with carvacrol's effectiveness comparable to DEET at specific concentrations and times.
- * The findings suggest that plant-derived compounds could serve as safer alternatives to synthetic tick repellents and have potential for development into effective biocidal products.
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