Works (2)

2004 journal article

Quantification of highway vehicle emissions hot spots based upon on-board measurements

Journal of the Air & Waste Management Association, 54(2), 130–140.

By: A. Unal, H. Frey & N. Rouphail

Source: NC State University Libraries
Added: August 6, 2018

2003 journal article

On-road measurement of vehicle tailpipe emissions using a portable instrument

Journal of the Air & Waste Management Association, 53(8), 992–1002.

By: H. Frey, A. Unal, N. Rouphail & J. Colyar

Source: NC State University Libraries
Added: August 6, 2018