Table 2.

Concentrations of T-Hg and MeHg in sediment, three organ parts of reed, and three water animal species in Wuyur River (ppb in dry weight, n = 3)

	Sediment	Reed			Viviparidae		C. japonicus Sharp		P. glenni Dybowski
		Root	Rhizome	Stem	T-Hg	MeMg	T-Hg	MeMg	T-Hg	MeMg
S1	290	46.78	12.72	6.14	56.23	32.38	66.47	33.94	80.45	72.90
S2	360	88.67	24.54	10.62	95.48	54.85	128.49	72.02	156.47	112.96
S3	350	61.35	18.55	9.64	85.16	41.95	135.76	62.45	135.47	100.32
S4	310	76.37	36.53	7.39	79.88	26.11	118.48	63.86	125.37	96.26
S5	320	70.63	33.67	8.14	82.31	39.86	116.78	68.08	108.12	88.72
S6	410	86.7	40.25	11.21	112.04	48.53	153.154	109.83	122.74	107.56
S7	340	23.97	10.48	8.38	102.36	47.42	120.89	73.73	112.12	84.90
S8	330	31.39	10.78	7.64	79.56	30.51	102.36	82.84	90.24	74.30
S9	375	43.78	15.56	9.88	110.45	40.02	138.15	76.35	133.45	90.46
S10	310	35.48	12.6	7.14	104.65	43.07	208.34	100.39	182.19	148.74
S11	170	19.48	6.45	4.89	56.78	30.65	68.45	33.95	92.45	67.70
S12	140	11.12	5.67	3.01	50.47	22.11	65.215	32.96	76.45	45.56
S13	160	15.63	6.487	3.84	39.59	17.85	42.02	28.93	40.16	27.02
S14	90	24.57	9.43	5.39	28.45	12.31	46.27	18.29	39.87	20.48
S15	310	33.87	11.27	6.88	103.27	46.11	133.47	53.94	112.47	90.774
S16	390	54.47	24.05	7.13	138.14	84.78	189.09	130.90	143.02	126.91
S17	230	35.46	27.86	4.85	108.36	82.09	120.36	66.57	114.45	102.64
S18	210	20.78	9.67	5.64	89.45	30.48	99.23	34.39	102.12	40.78
S19	260	48.89	18.76	6.88	99.09	60.07	156.25	72.04	132.36	74.34