1. 1. S. C. Chen and C. M. Liao, Sci. Total Environ., 2006, 366, 112.
2. 2. “Some Non-heterocyclic Polycyclic Aromatic Hydrocarbons and Some Related Exposures, IARC Monogr. Eval. Carcinog. Risks Hum.”, International Agency for Research on Cancer, 2010, 92, 1.
3. 3. “Polycyclic Aromatic Hydrocarbons, in Air Quality Guidelines for Europe”, World Health Organization Regional Office for Europe, 2010, Copenhagen, 92.
4. 4. S. O. Baek, R. A. Field, M. E. Goldstone, P. W. Kirk, J. N. Lester, and R. Perry, Water Air Soil. Poll., 1991, 60, 279.
5. 5. C. Venkataraman, S. Thomas, and P. Kulkarni, J. Aerosol. Sci., 1999, 30, 759.