Pattern of polycyclic aromatic hydrocarbons (PAHs) pollution in communication air of Hangzhou, China.
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 micrograms/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 PAHs is: [PAHs] = 1.471 (+/- 0.155) [Phen] + 2.538 (+/- 2.522) [1 - Mepy] + 2.254 (+/- 0.943) [Chry] + 1.022 (+/- 1.767).
Wang
Jing
J
Department of Environmental Science, Zhejiang University, Hangzhou 310028, China.
Zhu
Li-zhong
LZ
Liu
Yong-jian
YJ
D000393:Air Pollutants / Q000032:analysis*; D002681:China; D002947:Cities; D004784:Environmental Monitoring; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D001335:Vehicle Emissions / Q000032:analysis*
D000393:Air Pollutants; D011084:Polycyclic Aromatic Hydrocarbons; D001335:Vehicle Emissions