Dataset Information

Non-volatile particle emissions from aircraft turbine engines at ground-idle induce oxidative stress in bronchial cells.

ABSTRACT: Aircraft emissions contribute to local and global air pollution. Health effects of particulate matter (PM) from aircraft engines are largely unknown, since controlled cell exposures at relevant conditions are challenging. We examined the toxicity of non-volatile PM (nvPM) emissions from a CFM56-7B26 turbofan, the world's most used aircraft turbine using an unprecedented exposure setup. We combined direct turbine-exhaust sampling under realistic engine operating conditions and the Nano-Aerosol Chamber for In vitro Toxicity to deposit particles onto air-liquid-interface cultures of human bronchial epithelial cells (BEAS-2B) at physiological conditions. We evaluated acute cellular responses after 1-h exposures to diluted exhaust from conventional or alternative fuel combustion. We show that single, short-term exposures to nvPM impair bronchial epithelial cells, and PM from conventional fuel at ground-idle conditions is the most hazardous. Electron microscopy of soot reveals varying reactivity matching the observed cellular responses. Stronger responses at lower mass concentrations suggest that additional metrics are necessary to evaluate health risks of this increasingly important emission source.

SUBMITTER: Jonsdottir HR

PROVIDER: S-EPMC6401161 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Non-volatile particle emissions from aircraft turbine engines at ground-idle induce oxidative stress in bronchial cells.

Jonsdottir Hulda R HR Delaval Mathilde M Leni Zaira Z Keller Alejandro A Brem Benjamin T BT Siegerist Frithjof F Schönenberger David D Durdina Lukas L Elser Miriam M Burtscher Heinz H Liati Anthi A Geiser Marianne M

Communications biology 20190305

Aircraft emissions contribute to local and global air pollution. Health effects of particulate matter (PM) from aircraft engines are largely unknown, since controlled cell exposures at relevant conditions are challenging. We examined the toxicity of non-volatile PM (nvPM) emissions from a CFM56-7B26 turbofan, the world's most used aircraft turbine using an unprecedented exposure setup. We combined direct turbine-exhaust sampling under realistic engine operating conditions and the Nano-Aerosol Ch ...[more]

PMID: 30854482

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Dataset Information

Non-volatile particle emissions from aircraft turbine engines at ground-idle induce oxidative stress in bronchial cells.

Publications

Non-volatile particle emissions from aircraft turbine engines at ground-idle induce oxidative stress in bronchial cells.

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