TY - JOUR
T1 - Relationship between concentrations of pyrene and aerosol size distribution in traffic exhausts in Taipei, Taiwan
AU - Lai, CH
AU - Liou, SH
AU - Shih, TS
AU - Tsai, PY
AU - Chen, HL
AU - Buckley, T
AU - Stickland, P
AU - Jaakkola, Jouni
PY - 2003/10/1
Y1 - 2003/10/1
N2 - Variations in pyrene concentrations in motor-vehicle emissions were assessed on the basis of aerodynamic particle size and by the type of vehicle (i.e., car, truck, or bus) that passed through a Taipei, Taiwan, highway toll station. Airborne particles were collected with 8-stage cascade samplers equipped with 34-mm polyvinyl chloride filters and located in the breathing zones of toll-station workers. The authors used gas chromatography/mass spectrometry to analyze 22 polycyclic aromatic hydrocarbons that were collected. The absolute concentration of pyrene was highest in the fine-particle emission fraction for trucks, buses, and passenger cars; however, fine particles in truck and bus exhausts contained higher pyrene concentrations than the corresponding size fraction of particles emitted from passenger cars. Truck and bus emissions contained a higher concentration of pyrene than car emissions because trucks and buses produced greater amounts of fine and coarse particles, and their fine particles contained higher concentrations of pyrene.
AB - Variations in pyrene concentrations in motor-vehicle emissions were assessed on the basis of aerodynamic particle size and by the type of vehicle (i.e., car, truck, or bus) that passed through a Taipei, Taiwan, highway toll station. Airborne particles were collected with 8-stage cascade samplers equipped with 34-mm polyvinyl chloride filters and located in the breathing zones of toll-station workers. The authors used gas chromatography/mass spectrometry to analyze 22 polycyclic aromatic hydrocarbons that were collected. The absolute concentration of pyrene was highest in the fine-particle emission fraction for trucks, buses, and passenger cars; however, fine particles in truck and bus exhausts contained higher pyrene concentrations than the corresponding size fraction of particles emitted from passenger cars. Truck and bus emissions contained a higher concentration of pyrene than car emissions because trucks and buses produced greater amounts of fine and coarse particles, and their fine particles contained higher concentrations of pyrene.
UR - http://www.scopus.com/inward/record.url?scp=8344241097&partnerID=8YFLogxK
U2 - 10.3200/AEOH.58.10.624-632
DO - 10.3200/AEOH.58.10.624-632
M3 - Article
C2 - 15562634
VL - 58
SP - 624
EP - 632
JO - Arch Environ Health
JF - Arch Environ Health
ER -