| Autor: |
Wang Jing, Liu Yong-jian, Zhu Li-zhong |
| Předmět: |
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| Zdroj: |
Journal of Environmental Sciences (IOS Press). Apr2002, Vol. 14 Issue 2, p145. 6p. 2 Graphs. |
| Abstrakt: |
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 PAHs is: [PAHs] = 1.471(± 0.155)[Phen] + 2.538 (± 2.522)[1 - Mepy] + 2.254 (± 0.943)[Chry] +1.022 (± 1.767). [ABSTRACT FROM AUTHOR] |
| Databáze: |
GreenFILE |
| Externí odkaz: |
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