Table 1.

Geometric mean concentrations of each compound or compound group at each of the 13 sites (see Figure 1). The concentrations shown in bold and red font are significantly higher at the specific sites compared to the other sites as indicated by an ANOVA (see Tables S4-S6). Therefore, if two sites have red values for a given compound, those sites are statistical higher than the other sites which values are in black font.

Site ID	BDE- 47	BDE- 99	BDE- 209	PBD Es	pTB X	PBE B	PBB Z	HBB	DP	TBB + TBPH
AU	6.0	6.2	4.3	11	0.09	0.13	1.9	0.40	0.65	14
CN	17	69	15	20	0.09	0.12	23	1.9	0.76	6.6
IIT	22	14	70	153	0.28	0.71	2.1	0.74	4.8	35
JP	7.1	9.1	100	73	0.23	0.51	1.4	0.29	1.6	7.4
JT	13	22	12	21	0.05	0.16	7.9	0.91	0.66	7.7
JW	8.4	19	12	26	0.14	0.48	1.2	0.42	1.5	6.5
LM	9.4	20	12	33	0.16	0.32	2.6	0.44	1.3	11
NC	6.6	16	10	30	0.10	0.20	1.0	0.35	1.0	11
PP	5.9	8.0	6.2	16	0.22	0.48	1.1	0.38	1.5	8.4
SL	7.1	12	15	45	0.17	0.42	1.4	0.42	2.3	9.9
SP	11	7.6	7.0	29	0.39	21	1.7	0.34	1.8	11
VM	9.7	10	9.5	22	0.22	0.19	1.3	0.28	5.9	7.2
WP	9.3	13	11	34	0.22	0.45	1.1	0.28	1.7	13
Average	9.2	13	15	31	0.18	0.46	1.9	0.44	1.6	10

Site ID	TnBP	TCEP	TCPP	TPP	Phen	BaP	PAHs	α-HCH	γ-HCH	DDTs	Chlors	Endos
AU	66	42	134	347	22,300	435	51,900	11	3.9	6.3	25	41
CN	54	32	127	280	3,980	70	8,690	2.0	1.8	4.8	8.2	16
IIT	268	250	579	311	15,600	377	35,500	6.6	7.5	9.9	66	85
JP	208	57	290	399	6,270	166	13,600	4.8	4.8	4.9	34	29
JT	63	44	293	552	10,200	208	21,900	2.9	3.3	4.8	33	16
JW	111	50	230	173	12,100	375	29,700	3.2	4.0	3.0	31	30
LM	113	58	168	279	10,300	117	20,500	4.4	3.4	2.7	28	33
NC	98	64	184	549	8,880	96	17,300	3.7	3.0	8.6	21	28
PP	139	108	258	393	5,950	171	13,800	3.6	3.2	5.9	60	27
SL	291	80	250	295	16,800	343	39,800	4.1	4.7	6.2	37	21
SP	178	336	456	576	7,880	149	15,500	3.1	20	4.9	39	18
VM	82	68	187	430	8,420	195	18,500	8.5	3.2	4.9	40	33
WP	115	59	267	240	5,600	191	13,400	4.7	3.4	6.5	26	17
Average	120	75	238	351	9,170	197	20,200	4.3	4.4	5.1	32	27