Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1021/acs.estlett.1c00811
Lizenz creative commons licence
Titel (primär) Characterization of individual tire and road wear particles in environmental road dust, tunnel dust, and sediment
Autor Kovochich, M.; Parker, J.A.; Oh, S.C.; Lee, J.P.; Wagner, S.; Reemtsma, T.; Unice, K.M.
Quelle Environmental Science & Technology Letters
Erscheinungsjahr 2021
Department ANA
Band/Volume 8
Heft 12
Seite von 1057
Seite bis 1064
Sprache englisch
Topic T9 Healthy Planet
Supplements https://pubs.acs.org/doi/suppl/10.1021/acs.estlett.1c00811/suppl_file/ez1c00811_si_001.pdf
Abstract Tire and road wear particles (TRWPs) are generated from friction between tires and the road and contain polymer tread with pavement encrustations. Single particle analysis (SPA) of tire source contribution in environmental samples has been limited by interferences in common spectroscopic polymer techniques. This study extends a density separation and chemical mapping protocol for road simulator generated TRWPs toward the identification and characterization of individual TRWPs in more complex road dust, road-dust-spiked artificial sediment, tunnel dust, and environmental settling pond sediment samples. TRWPs were identified by a combination of physical (elongated/round shape with variable amounts of mineral encrustation) and elemental surface characteristics [co-localization of (S + Zn/Na) ± (Si, K, Mg, Ca, and Al)]. Organic surface markers (C7H7+), overlapping FTIR spectra with tread reference material, and resistance to heat-induced deformation were selectively used to confirm particle identification. The TRWP size displayed an increasing average trend of 54, 158, and 267 μm by number (94, 224, and 506 μm by volume) in tunnel dust, road dust, and environmental sediment, respectively. TRWP size distributions within road dust 10× diluted with artificial sediment agreed with those of pure road dust. Our SPA methodologies determined the size distribution of TRWPs in environmental sample types with increasing sample complexity.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=25508
Kovochich, M., Parker, J.A., Oh, S.C., Lee, J.P., Wagner, S., Reemtsma, T., Unice, K.M. (2021):
Characterization of individual tire and road wear particles in environmental road dust, tunnel dust, and sediment
Environ. Sci. Technol. Lett. 8 (12), 1057 - 1064 10.1021/acs.estlett.1c00811