The presence of selected volatile organic compounds (VOCs) including aromatic, aliphatic compounds and low molecular weight carbonyls, and a target set of phthalates were investigated in the interior of 23 used private cars during the summer and winter. VOC concentrations often exceeded levels typically found in residential indoor air, e.g. benzene concentrations reached values of up to 149.1 microg m(-3). Overall concentrations were 40% higher in summer, with temperatures inside the cars reaching up to 70 degrees C. The most frequently detected phthalates were di-n-butyl-phthalate and bis-(2-ethylhexyl) phthalate in concentrations ranging from 196 to 3656 ng m(-3).
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http://dx.doi.org/10.1016/j.envint.2009.07.016 | DOI Listing |
Toxins (Basel)
December 2024
Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, No. 12 Zhongguancun South Street, Beijing 100081, China.
Zearalenone (ZEN) has been detected in both pet food ingredients and final products, causing acute toxicity and chronic health problems in pets. Therefore, the early detection of mycotoxin contamination in pet food is crucial for ensuring the safety and well-being of animals. This study aims to develop a rapid and cost-effective method using an electronic nose (E-nose) and machine learning algorithms to predict whether ZEN levels in pet food exceed the regulatory limits (250 µg/kg), as set by Chinese pet food legislation.
View Article and Find Full Text PDFNeuroSci
December 2024
Behavioral Neuroscience Program, Psychology Department, Western Washington University, 516 High Street, Bellingham, WA 98229, USA.
Volatile organic compounds, colloquially referred to as "terpenes", have been proposed to impact the therapeutic qualities that are traditionally ascribed to cannabis. However, the contribution of these terpenes in anxiety, at relevant levels and exposure methods common with cannabis use, is lacking empirical assessment. We tested the anxiolytic properties of two prominent cannabis terpenes, linalool and β-myrcene, in male and female mice using short duration vapor pulls to model human inhalation when combusting flower or vaping cannabis oil.
View Article and Find Full Text PDFNanomaterials (Basel)
December 2024
Department of Advanced Materials Science and Engineering, Faculty of Engineering Sciences, Kyushu University, Kasuga 816-8580, Fukuoka, Japan.
BiO particles are introduced as foreign additives onto SnO nanoparticles (NPs) surfaces for the efficient detection of oxygenated volatile organic compounds (VOCs). BiO-loaded SnO materials are prepared via the impregnation method followed by calcination treatment. The abundant BiO/SnO interfaces are constructed by the uniform dispersion of BiO particles on the SnO surface.
View Article and Find Full Text PDFMetabolites
December 2024
CNRS, Aix-Marseille University, Avignon University, IRD, UMR 7263 IMBE, 13397 Marseille, France.
Background/objectives: Biogenic volatile organic compounds (BVOCs), extensively studied in terrestrial plants with global emissions around 1 PgC yr, are also produced by marine organisms. However, benthic species, especially seagrasses, are understudied despite their global distribution (177,000-600,000 km). This study aims to examine BVOC emissions from key Mediterranean seagrass species (, , , and ) in marine and coastal lagoon environments.
View Article and Find Full Text PDFJ Fungi (Basel)
December 2024
Department of Agricultural Microbiology, Tamil Nadu Agricultural University, Coimbatore 641003, India.
The interaction between plants and microorganisms plays a major role in plant growth promotion and disease management. While most microorganisms directly influence plant health, some indirectly support growth through pest and disease suppression. Endophytic entomopathogenic fungi are diverse, easily localized, and have long-lasting effects on insect pests.
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