Concentrations of atmospheric polycyclic aromatic hydrocarbons in particulate matter and the gaseous phase at roadside sites in Hanoi, Vietnam.
We analyzed the concentrations of polycyclic aromatic hydrocarbons (PAHs) in both particulate matter (PM) and the gaseous phase at 10 roadside sites in Hanoi, Vietnam. The average concentrations of 47 PAHs ( summation 47PAHs) were 63 +/- 82 ng m(-3) in PM and 480 +/- 300 ng m(-3) in the gaseous phase. The PAHs mainly originated from motorcycles without catalytic converters. The highest concentrations of summation 47PAHs in both PM and the gaseous phase were observed at a terminal for buses and trucks. The operation of large commercial vehicles led to increased PAH pollution at the terminal site.
Kishida
Masao
M
Research Institute of Environment, Agriculture, and Fisheries, Osaka Prefectural Government, Higashinari-ku, Osaka, 537-0025, Japan. kishida82477@iris.eonet.ne.jp
Imamura
Kiyoshi
K
Takenaka
Norimichi
N
Maeda
Yasuaki
Y
Viet
Pham Hung
PH
Bandow
Hiroshi
H
D000395:Air Pollutants, Occupational / Q000032:analysis*; D005740:Gases / Q000032:analysis; D008970:Molecular Weight; D052638:Particulate Matter / Q000032:analysis*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D014744:Vietnam
D000395:Air Pollutants, Occupational; D005740:Gases; D052638:Particulate Matter; D011084:Polycyclic Aromatic Hydrocarbons