Physical transformation of ultrafine particles near three Texas roadways

Y. F. Zhu, J. Pudota, A. DenBleyker, E. Michel, E. McDonal-Buller, Matthew Fraser, D. Collins, Y. Jia, A. Clements, D. Allen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A systematic evaluation of vehicular emitted air pollutants in the vicinity of three Texas roadways, i.e., a heavily traveled arterial highway, dominated by passenger vehicles, a limited access highway, and a heavily traveled surface highway dominated by truck traffic, was carried out. Under inconsistent wind conditions, distances along wind trajectory from the roadway to the sampling points were better metrics for ultrafine particle (UFP) spatial profiles than physical perpendicular distances from the roadway to the sampling points. Under perpendicular wind conditions, for all studied roadway type, particle number concentrations increased when one moves from the upwind side to the downwind side of the roadways and decayed exponentially with increasing distances with sharp concentrations gradient observed within 100-150 m from the roadway. A single exponential decay curve fitted the data collected from all three roadways very well under perpendicular wind conditions. Although no consistent pattern was observed for UFP under parallel wind conditions, for virtually every roadway type, and independent of whether air flow was parallel to or perpendicular to the roadway, particle concentrations returned to background levels within a few hundred meters of the roadway. This is an abstract of a paper presented at the 101st AWMA Annual Conference and Exhibition (Portland, OR 6/24-27/2008).

Original languageEnglish (US)
Title of host publicationProceedings of the Air and Waste Management Association's Annual Conference and Exhibition, AWMA
Pages1677-1681
Number of pages5
Volume3
StatePublished - 2008
Event101st Air and Waste Management Association Annual Conference and Exhibition 2008 - Portland, OR, United States
Duration: Jun 24 2008Jun 27 2008

Other

Other101st Air and Waste Management Association Annual Conference and Exhibition 2008
CountryUnited States
CityPortland, OR
Period6/24/086/27/08

Fingerprint

road
Sampling
Parallel flow
sampling
background level
Air
Trucks
airflow
trajectory
Trajectories
particle
evaluation
air pollutant
traffic
vehicle

Keywords

  • Exponential decay
  • Near roadway
  • Ultrafine particles
  • Vehicular emissions

ASJC Scopus subject areas

  • Environmental Science(all)
  • Energy(all)

Cite this

Zhu, Y. F., Pudota, J., DenBleyker, A., Michel, E., McDonal-Buller, E., Fraser, M., ... Allen, D. (2008). Physical transformation of ultrafine particles near three Texas roadways. In Proceedings of the Air and Waste Management Association's Annual Conference and Exhibition, AWMA (Vol. 3, pp. 1677-1681)

Physical transformation of ultrafine particles near three Texas roadways. / Zhu, Y. F.; Pudota, J.; DenBleyker, A.; Michel, E.; McDonal-Buller, E.; Fraser, Matthew; Collins, D.; Jia, Y.; Clements, A.; Allen, D.

Proceedings of the Air and Waste Management Association's Annual Conference and Exhibition, AWMA. Vol. 3 2008. p. 1677-1681.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Zhu, YF, Pudota, J, DenBleyker, A, Michel, E, McDonal-Buller, E, Fraser, M, Collins, D, Jia, Y, Clements, A & Allen, D 2008, Physical transformation of ultrafine particles near three Texas roadways. in Proceedings of the Air and Waste Management Association's Annual Conference and Exhibition, AWMA. vol. 3, pp. 1677-1681, 101st Air and Waste Management Association Annual Conference and Exhibition 2008, Portland, OR, United States, 6/24/08.
Zhu YF, Pudota J, DenBleyker A, Michel E, McDonal-Buller E, Fraser M et al. Physical transformation of ultrafine particles near three Texas roadways. In Proceedings of the Air and Waste Management Association's Annual Conference and Exhibition, AWMA. Vol. 3. 2008. p. 1677-1681
Zhu, Y. F. ; Pudota, J. ; DenBleyker, A. ; Michel, E. ; McDonal-Buller, E. ; Fraser, Matthew ; Collins, D. ; Jia, Y. ; Clements, A. ; Allen, D. / Physical transformation of ultrafine particles near three Texas roadways. Proceedings of the Air and Waste Management Association's Annual Conference and Exhibition, AWMA. Vol. 3 2008. pp. 1677-1681
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