Table. 6a	first sampling data
			Mean concentration of  phthlates in µg/L  (n = 28)
	Territory wise distribution	Eastern Straits of Johor and Singapore	std error	Eastern and Central Singapore Straits	std error	Southern Island, Western Singapore Straits	std error	Northwestern Johor and Wester Singapore Straits	std error
	DEP	0.133	0.089	0.104	0.078	0.122	0.084	0.055	0.072
	DAllylP	0.083	0.123	0.040	0.052	0.042	0.027	0.011	0.009
	DBP	0.021	0.011	0.019	0.023	0.013	0.008	0.012	0.020
	DOA	0.004	0.003	0.002	0.002	0.003	0.003	0.001	0.001
	DCHP	0.054	0.043	0.035	0.030	0.055	0.058	0.018	0.022
	DEHP	0.055	0.044	0.034	0.034	0.025	0.025	0.016	0.023
	DPhP	nd	nd	0.013	0.034	nd	nd	nd	nd
	DnoP	0.006	0.003	0.005	0.003	0.006	0.004	0.004	0.003