Airborne, Vehicle-Derived Fe-Bearing Nanoparticles in the Urban Environment: A Review

Airborne particulate matter poses a serious threat to human health. Exposure to nanosized (<0.1 μm), vehicle-derived particulates may be hazardous due to their bioreactivity, their ability to penetrate every organ, including the brain, and their abundance in the urban atmosphere. Fe-bearing nanop...

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Bibliographic Details
Published inEnvironmental science & technology Vol. 53; no. 17; pp. 9970 - 9991
Main Authors Gonet, Tomasz, Maher, Barbara A
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 03.09.2019
Subjects
Airborne particulates
Alzheimer's disease
Bearing
Chemical composition
Diesel engines
Exhaust emissions
Exhaust gases
Gasoline
Grain size distribution
Health risks
Iron
Movement disorders
Nanoparticles
Neurodegenerative diseases
Neurological diseases
Organic chemistry
Parkinson's disease
Particle size distribution
Particulate emissions
Particulate matter
Particulates
Pathogenicity
Pathogens
Roadsides
Shipping
Size distribution
Underground roadways
Urban atmosphere
Urban environments
Wear
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Summary:Airborne particulate matter poses a serious threat to human health. Exposure to nanosized (<0.1 μm), vehicle-derived particulates may be hazardous due to their bioreactivity, their ability to penetrate every organ, including the brain, and their abundance in the urban atmosphere. Fe-bearing nanoparticles (<0.1 μm) in urban environments may be especially important because of their pathogenicity and possible association with neurodegenerative diseases, such as Alzheimer’s and Parkinson’s diseases. This review examines current knowledge regarding the sources of vehicle-derived Fe-bearing nanoparticles, their chemical and mineralogical compositions, grain size distribution and potential hazard to human health. We focus on data reported for the following sources of Fe-bearing nanoparticles: exhaust emissions (both diesel and gasoline), brake wear, tire and road surface wear, resuspension of roadside dust, underground, train and tram emissions, and aircraft and shipping emissions. We identify limitations and gaps in existing knowledge as well as future challenges and perspectives for studies of airborne Fe-bearing nanoparticles.
ISSN:0013-936X
1520-5851
DOI:10.1021/acs.est.9b01505