Fine, ultrafine and nanoparticle trace element compositions near a major freeway with a high heavy-duty diesel fraction
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 5684-5696 |
Journal / Publication | Atmospheric Environment |
Volume | 41 |
Issue number | 27 |
Publication status | Published - Sep 2007 |
Externally published | Yes |
Link(s)
Abstract
Trace elements and metals in the ultrafine (-3), Na (129 ng m-3), and Fe (89 ng m-3) while S (35 ng m-3) and Fe (35 ng m-3) were the most abundant in the ultrafine mode. The concentrations of several trace elements, including Mg, Al, and Zn, and in particular Ca, Cu, and Pb, did not uniformly increase with size within fine PM, an indication that various roadway sources exist for these elements. Calculation of crustal enrichment factors for the two sites indicates that the freeway traffic contributed to enriched levels of ultrafine Cu, Ba, P and Fe and possibly Ca. The results of this study show that trace elements constitute a small fraction of PM mass in the nanoparticle size range, but these can and should be characterized due to their likely importance to human health. © 2007 Elsevier Ltd. All rights reserved.
Research Area(s)
- Diesel, Elements, Metals, NanoMOUDI, Nanoparticles, PM, Ultrafine
Citation Format(s)
Fine, ultrafine and nanoparticle trace element compositions near a major freeway with a high heavy-duty diesel fraction. / Ntziachristos, Leonidas; Ning, Zhi; Geller, Michael D.; Sheesley, Rebecca J.; Schauer, James J.; Sioutas, Constantinos.
In: Atmospheric Environment, Vol. 41, No. 27, 09.2007, p. 5684-5696.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review