Assessing the Ecological Risk of Polycyclic Aromatic Hydrocarbons in Sediments at Langkawi Island, Malaysia

Table 6

Diagnostic PAH ratios in the sediment and their possible sources.


	BaA/BaA + Chry^a		An/An + Ph^b		LMW/HMW^c

Kuah Jetty	0.14	Petr	0.61	Pyr	0.45	Pyr
Kilim Jetty	0.74	Pyr	0.29	Pyr	0.52	Pyr
Telaga Harbour	0.47	Pyr	0.16	Pyr	1.43	Pyr
Porto Malai Jetty	0.45	Pyr	0.55	Pyr	1.11	Pyr
Fish F.I-1	0.53	Pyr	0.27	Pyr	1.53	Pyr
Fish F.I-2	0.08	Petr	0.52	Pyr	0.52	Pyr
Fish F.I-3	0.47	Pyr	0.31	Pyr	1.02	Pyr
Fish F.II-1	0.07	Petr	0.10	Pyr	0.93	Pyr
Fish F.II-2	0.33	Petr + Pyr	0.15	Pyr	0.31	Pyr
Fish F.III	0.06	Petr	0.45	Pyr	0.42	Pyr
Mean	0.34		0.34		0.82
Petrogenic S.	<0.2		<0.1		>1
Pyrogenic S.	>0.35		>0.1		<1

Benzo[a]anthracene to benzo[a]anthracene plus chrysene; ^banthracene to anthracene plus phenanthrene ratio; ^cPAHs with low molecular weight to PAHs with high molecular weight; Petr: petrogenic; Pyr: pyrogenic.

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Assessing the Ecological Risk of Polycyclic Aromatic Hydrocarbons in Sediments at Langkawi Island, Malaysia

Table 6