Application of Binary Diagnostic Ratios of Polycyclic Aromatic Hydrocarbons for Identification of Tsunami 2004 Backwash Sediments in Khao Lak, Thailand

Table 2

Diagnostic binary ratios of PAHs in Andaman marine sediments in comparison with those of particulate PAHs from other emission sources.

	Andaman; (𝑛=70)	Hat-Yai; (𝑛=72)	Emission sources; (𝑛=17)	𝑡-test	𝑡-test
				Andaman versus Hat-Yai	Andaman versus emission sources
An/(An + Phe)	0.11 ± 0.11	1.16 ± 0.134	0.13 ± 0.11	S*	NS**
Fluo/(Fluo + Pyr)	0.35 ± 0.41	0.72 ± 0.120	0.50 ± 0.053	NS	S
B[a]A/(B[a]A + Chry)	0.96 ± 1.91	1.16 ± 0.053	0.51 ± 0.098	S	NS
B[a]P/(B[a]P + B[e]P)	0.48 ± 1.05	0.88 ± 0.13	0.41 ± 0.15	S	NS
Ind/(Ind + B[g,h,i]P)	0.34 ± 0.87	0.46 ± 0.13	0.46 ± 0.074	S	S
B[k]F/Ind	0.96 ± 1.96	0.68 ± 0.13	0.22 ± 0.16	S	S

∗S: significant (𝑃<0.05), **NS.