Pattern of polycyclic aromatic hydrocarbons (PAHs) pollution in communication air of Hangzhou, China

Article type: Research Article

Authors: Wang, Jing | Zhu, Li-zhong | Liu, Yong-jian

Affiliations: Department of Environmental Science, Zhejiang University, Hangzhou 310028, China. E-mail: [email protected]

Note: [] Corresponding author

Abstract: Nine PAHs were surveyed in communication air of Hangzhou. The results indicated that the PAHs pollution is very serious and the total sum of 9 PAHs, on the average are 3.39- 13.82 µg/m3. The PAHs signatures for all streets are similar to each other. Multivariate statistical techniques were used to investigate source apportionment for PAHs. A factor analysis/multiple regression model was successfully applied to the study. The most important three PAHs sources in communication air are diesel emission, gasoline engine emission, coal-burning accounting for 61. 1 ± 6.4%, 19.9 ± 8.3%, 10.8 ± 10.8% of total PAHs, respectively. The relationship for three source tracers and total PAHsis: [PAHs] =1.471(± 0.155)[Phen] + 2.538 (± 2.522)[1-Mepy] + 2.254 (± 0.943)[Chry] + 1.022 (± 1.767).

Keywords: PAHs, air, source apportionment, city communication

Journal: Journal of Environmental Sciences, vol. 14, no. 2, pp. 145-150, 2002