contamination of selected polycyclic aromatic hydrocarbons (PAH) in air from Hanoi

Abstract

     Selected polycyclic aromatic hydrocarbons (PAHs) were analyzed in the air from Hanoi in 2003 and 2007. The results indicated the significant PAH contamination in the air from Hanoi. The maximal concentrations of 28PAH in dust and air samples are 290 and 1300 ng/m3 , respectively. The high PAH distribution is found with remarkable level of some PAH which have high potential human carcinogen. The PAH source is mainly originated from exhaust gases of gasoline engines without catalytic converters.