Table 3.

Average values of selected diagnostic (DRs) ratios for DEP

Diagnostic ratio	Value	References
Ph/(Ph+An)	0.65 (0.42–0.90)	This studya
	0.51 (0.30–0.72)	This studyb
	0.75	Kavouras et al. (2001)
	0.65	Alves et al. (2001)
F/(F+Pyr)	0.63 (0.30–0.94)	This studya
	0.31 (0.13–0.40)	This studyb
An/(An+Ph)	0.34 (0.10–0.51)	This studya
	0.38 (0.28–0.47)	This studyb
	0.43	Kuo et al. (2013)
Fl/(Fl+Pyr)	0.56 (0.23–0.69)	This studya
	0.63 (0.57–0.66)	This studyb
	>0.5	Rogge et al. (1993); Mandalakis et al. (2002); Fang et al. (2004)
	0.60–0.70	Kavouras et al. (2001)
	0.41	Kavouras et al. (2001); Kuo et al. (2013)
Fl/Pyr	1.73 (1.24–2.28)	This studya
	1.74 (1.31–1.96)	This studyb
Ph/An	1.83 (1.32–2.32)	This studya
	1.73 (1.11–2.61)	This studyb
BaP/(BaP+Ch)	0.47 (0.22–0.86)	This studya
	0.61 (0.33–0.79)	This studyb
	0.68	Khalili et al. (1995)
	0.5	Ravindra et al. (2006)
BaA/BaP	0.75 (0.45–1.17	This studya
	0.96 (0.80–1.21)	This studyb
	1.0	Li and Kamens (1993)
Pyr/BaP	0.66 (0.28–1.11)	This studya
	0.42 (0.32–0.75)	This studyb
BaA/(BaA+Ch)	0.73 (0.62–0.95)	This studya
	0.61 (0.32–0.75)	This studyb
	0.38–0.64	Kavouras et al. (2001)
	0.23–0.89	Yang et al. (1998)
	0.22–0.55	Simcik et al. (1999)
	0.30	Kuo et al. (2013)
IP/(IP+BghiP)	0.35–0.70	Kavouras et al. (1999); Ravindra et al. (2006)
BbF/BkF	>0.5	Pandey et al. (1999); Park et al. (2002)
	2.32	Ravindra et al. (2008)
IP/BghiP	>1	Caricchia et al. (1999)
	1	Kavouras et al. (1999)
Pyr/BaP	>10	Oda et al. (2001)

^aOnly petrogenic compounds found

^bPetrogenic and biogenic compounds present