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Pulmonary exposure to renewable diesel exhaust particles alters protein expression and toxicity profiles in bronchoalveolar lavage fluid and plasma of mice.
Arch Toxicol
December 2024
Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
Exposure to diesel exhaust is associated with increased risk of cardiovascular and lung disease. Substituting petroleum diesel with renewable diesel can alter emission properties but the potential health effects remain unclear. This study aimed to explore toxicity and underlying mechanisms of diesel exhaust from renewable fuels.
View Article and Find Full Text PDFQuantification and source apportionment of atmospheric oxidation capacity in urban atmosphere by considering reactive chlorine species and photochemical loss of VOCs.
Sci Total Environ
December 2024
Department of Atmospheric Science, School of Environmental Studies, China University of Geosciences, Wuhan 430074, China; Research Centre for Complex Air Pollution of Hubei Province, Wuhan 430074, China. Electronic address:
Atmospheric oxidation capacity (AOC) reflects the potential of the atmosphere in converting primary pollutants into secondary aerosols and ozone (O). In this study, the AOC at an urban supersite in Wuhan, a megacity in central China, was quantified by considering the reactions of volatile organic compounds (VOCs) and carbon monoxide (CO) with atmospheric oxidants (OH, NO, O, and Cl). Photochemical loss of total VOCs (13.
View Article and Find Full Text PDFQuantification and occurrence of 39 tire-related chemicals in urban and rural aerosol from Saxony, Germany.
Environ Int
December 2024
Helmholtz Centre for Environmental Research - UFZ, Department of Environmental Analytical Chemistry, Permoserstrasse 15, 04318 Leipzig, Germany; University of Leipzig, Institute for Analytical Chemistry, Linnéstrasse 3, 04103 Leipzig, Germany. Electronic address:
Tire and road wear particles (TRWP) are a major contributor to non-exhaust traffic emissions, but their contribution to and dynamics in urban aerosol is not well known. Urban particulate matter (PM) in the size fraction below 10 µm (PM) from two German cities was collected over 2 weeks and analysed for 39 tire-related chemicals, including amines, guanidines, ureas, benzothiazoles, p-phenylenediamines, quinolines and several transformation products (TPs). Of these, 37 compounds were determined in PM at median concentrations of 212 pg/m for 1,3-diphenylguanidine (DPG) and 132 pg/m for benzothiazole-2-sulfonic acid (BTSA); 10 of the compounds have not been reported in urban aerosol before.
View Article and Find Full Text PDFContribution of Aftertreatment Technologies to Alleviating SOA and Toxicity Generation from Typical Diesel Engine-Emitted I/SVOCs.
Environ Sci Technol
December 2024
Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China.
The removal capacity of aftertreatment technologies equipped on diesel exhaust in intermediate and semivolatile organic compounds (I/SVOCs) remains unclear. This study quantified the effect of typical aftertreatment technologies (China VI) on diesel engine-emitted I/SVOCs, related secondary organic aerosol (SOA), and toxic effects. The equipped aftertreatment devices could mitigate the emission factors (EFs) by 70.
View Article and Find Full Text PDFOccupational exposure to aerosols in two French airports: multi-year lung function changes.
Ann Work Expo Health
November 2024
IDESP, INSERM, Premedical, INRIA, University of Montpellier, CHU Montpellier, 39 avenue Charles Flahaut, 34295 Montpellier, France.
As differential exposure to airport-generated aerosols may affect employee lung function, the main objective of this study was to longitudinally evaluate spirometry measures among Air France employees. In addition, an exploratory exposure assessment to airport aerosol was performed in a small cohort of workers using personal monitoring devices. Change in lung function over a ~6.
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