Journal article
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Comparison of the toxicity of diesel exhaust produced by bio- and fossil diesel combustion in human lung cells in vitro
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Steiner, Sandro
Adolphe Merkle Institute, University of Fribourg, Switzerland
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Czerwinski, Jan
Bern University for Applied Sciences, Switzerland
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Comte, Pierre
Bern University for Applied Sciences, Switzerland
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Popovicheva, Olga
Institute of Nuclear Physics, Moscow State University, Russia
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Kireeva, Elena
Institute of Nuclear Physics, Moscow State University, Russia
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Müller, Loretta
University of Bern, Department of Clinical Research, Switzerland
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Heeb, Norbert
EMPA, Swiss Federal Laboratories for Materials Testing and Research, Switzerland
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Mayer, Andreas
TTM, Technik Thermischer Maschinen, Switzerland
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Petri-Fink, Alke
Adolphe Merkle Institute, University of Fribourg, Switzerland
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Rothen-Rutishauser, Barbara
Adolphe Merkle Institute, University of Fribourg, Switzerland - University of Bern, Department of Clinical Research, Switzerland
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Published in:
- Atmospheric Environment. - 2013, vol. 81, p. 380–388
English
Alternative fuels are increasingly combusted in diesel- and gasoline engines and the contribution of such exhausts to the overall air pollution is on the rise. Recent findings on the possible adverse effects of biodiesel exhaust are contradictive, at least partly resulting from the various fuel qualities, engine types and different operation conditions that were tested. However, most of the studies are biased by undesired interactions between the exhaust samples and biological culture media. We here report how complete, freshly produced exhausts from fossil diesel (B0), from a blend of 20% rapeseed-methyl ester (RME) and 80% fossil diesel (B20) and from pure rapeseed methyl ester (B100) affect a complex 3D cellular model of the human airway epithelium in vitro by exposing the cells at the air–liquid interface. The induction of pro-apoptotic and necrotic cell death, cellular morphology, oxidative stress, and pro-inflammatory responses were assessed. Compared to B0 exhaust, B20 exhaust decreased oxidative stress and pro-inflammatory responses, whereas B100 exhaust, depending on exposure duration, decreased oxidative stress but increased pro-inflammatory responses. The effects are only very weak and given the compared to fossil diesel higher ecological sustainability of biodiesel, it appears that – at least RME – can be considered a valuable alternative to pure fossil diesel.
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Faculty
- Faculté des sciences et de médecine
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Department
- Département de Chimie
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Language
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Classification
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Chemistry
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License
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License undefined
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Identifiers
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Persistent URL
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https://folia.unifr.ch/unifr/documents/303392
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