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 (Σ47PAHs) 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 Σ47PAHs 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. © 2008 Springer Science+Business Media, LLC.

Kishida M., Imamura K., Takenaka N., Maeda Y., Viet P.H., Bandow H.

475.pdf    Gửi cho bạn bè

Từ khóa : Aromatic compounds; Aromatization; Chemical modification; Hydrocarbons; Organic compounds; Polycyclic aromatic hydrocarbons; Roads and streets; Roadsides; Atmospheric polycyclic aromatic hydrocarbons (PAH); Gaseous phase; Particulate matter (PM); Polycyclic aromatic hydrocarbons (PAHs); Viet Nam; Aromatic hydrocarbons; polycyclic aromatic hydrocarbon; air analysis; air sampling; article; chemical analysis; particulate matter; Viet Nam; Air Pollutants, Occupational; Gases; Molecular Weight; Particulate Matter; Polycyclic Hydrocarbons, Aromatic; Vietnam