Effects of Acute and Chronic Heavy Metal (Cu, Cd, and Zn) Exposure on Sea Cucumbers (Apostichopus japonicus)

Table 3

Nominal and measured concentrations (mean ± SD, ) of Zn, Cu, and Cd in test solutions.

⁢Zn			⁢Cu			⁢Cd
Nominal concentration (mg L^−1)	Measured (mg L^−1)	%	Nominal concentration (mg L^−1)	Measured (mg L^−1)	%	Nominal concentration (mg L^−1)	Measured (mg L^−1)	%
0.00	0.020 ± 0.001	—	0.00	0.003 ± 0.001	—	0.00	0.001 ± 0.000	—
0.04	0.036 ± 0.004	90.0	0.003	0.004 ± 0.000	133.3	0.022	0.026 ± 0.004	118.2
0.07	0.038 ± 0.001	54.3	0.005	0.006 ± 0.000	120.0	0.044	0.053 ± 0.001	120.5
0.15	0.121 ± 0.003	80.7	0.01	0.011 ± 0.000	110.0	0.088	0.097 ± 0.001	110.2
0.77	0.682 ± 0.005	88.6	0.02	0.019 ± 0.004	95.0	0.44	0.419 ± 0.001	95.2
1.00	0.932 ± 0.002	93.2	0.03	0.029 ± 0.004	96.7	0.50	0.437 ± 0.001	87.4
1.43	1.321 ± 0.080	92.4	0.05	0.043 ± 0.003	86.0	0.66	0.575 ± 0.003	87.1
2.05	1.980 ± 0.003	96.6	0.05	—	—	0.87	0.784 ± 0.002	90.1
2.94	2.820 ± 0.056	95.9	0.08	0.069 ± 0.007	86.3	1.15	1.030 ± 0.005	89.6
4.21	4.110 ± 0.073	97.6	0.13	0.123 ± 0.001	94.6	1.51	1.480 ± 0.001	98.0
6.00	5.230 ± 0.126	87.2	0.20	0.184 ± 0.001	92.0	2.00	1.820 ± 0.005	91.0