TY - GEN
T1 - Characterization of ultrafine particles and benzene concentrations at the international bridge of the americas during winter
AU - Olvera, Hector A.
AU - Guerrero, Veronica
AU - Lopez, Mario
AU - Perez, Daniel
AU - Escajeda, Sofia
AU - Garcia, Mario
AU - Li, Wen Whai
AU - Garcia, Jose H.
PY - 2009
Y1 - 2009
N2 - Among the ports of entry between the US and Mexico, the International Bridge of the Americas (BOTA) connecting El Paso, TX, and Ciudad Juarez, Chihuahua, Mexico, has the largest combined traffic of privately owned (mostly gasoline fueled) and commercially operated (mostly diesel fueled) vehicles. The air quality at the BOTA was studied in terms of particle mass, particle number, and benzene concentrations near the US customs inspection area at the BOTA. The results suggested that diesel emissions account for fraction of the variability of the total and particularly ultrafine particle number concentrations. Principle component analysis showed that the ultrafine particle (UFP) and benzene levels might be emitted by the same source, since component 3 showed correlations with both. The correlation analysis suggests that the impact of diesel traffic minimizes quickly with distance as southbound traffic was associated with PM2.5 levels at both sites while northbound traffic only correlated with PM2.5 levels at the Mexican site. This is an abstract of a paper presented at the 102nd Air & Waste Management Association Annual Conference and Exhibition (Detroit, MI 6/16-19/2009).
AB - Among the ports of entry between the US and Mexico, the International Bridge of the Americas (BOTA) connecting El Paso, TX, and Ciudad Juarez, Chihuahua, Mexico, has the largest combined traffic of privately owned (mostly gasoline fueled) and commercially operated (mostly diesel fueled) vehicles. The air quality at the BOTA was studied in terms of particle mass, particle number, and benzene concentrations near the US customs inspection area at the BOTA. The results suggested that diesel emissions account for fraction of the variability of the total and particularly ultrafine particle number concentrations. Principle component analysis showed that the ultrafine particle (UFP) and benzene levels might be emitted by the same source, since component 3 showed correlations with both. The correlation analysis suggests that the impact of diesel traffic minimizes quickly with distance as southbound traffic was associated with PM2.5 levels at both sites while northbound traffic only correlated with PM2.5 levels at the Mexican site. This is an abstract of a paper presented at the 102nd Air & Waste Management Association Annual Conference and Exhibition (Detroit, MI 6/16-19/2009).
KW - Diesel particles
KW - Mexico
KW - Particle number concentration
KW - Port of entry
KW - Principal component analysis
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UR - http://www.scopus.com/inward/citedby.url?scp=77952264893&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:77952264893
SN - 9781615676514
T3 - Proceedings of the Air and Waste Management Association's Annual Conference and Exhibition, AWMA
SP - 3471
EP - 3488
BT - 102nd Air and Waste Management Association Annual Conference and Exhibition 2009
T2 - 102nd Air and Waste Management Association Annual Conference and Exhibition 2009
Y2 - 16 June 2009 through 19 June 2009
ER -