(Mean ± S.D.)

Arsenic con. mg/L               Days

 

3

9

15

                          Shoot (mg/kg)

0.010

1.42 ± 0.04

1.61 ± 0.03

1.74 ± 0.12

0.025

3.05 ± 0.08

4.47 ± 0.11

5.47 ± 0.06

0.050

9.58 ± 0.13

10.21 ± 0.06

13.21 ± 0.22

0.10

19.53 ± 0.24

21.3 ± 0.28

32.1 ± 0.05

                            Root (mg/kg)

0.010

0.43 ± 0.02

0.46 ± 0.01

0.52 ± 0.03

0.025

1.11± 0.05

1.25 ± 0.08

1.32 ± 0.05

0.05

1.82 ± 0.11

2.52 ± 0.04

3.18 ± 0.14

0.10

4.21 ± 0.15

5.62 ± 0.02

7.20 ± 0.12

S.D. = Standard deviation
The standard deviation has been obtained for n=3
Table 3: The accumulation of total arsenic (As) at pH 6.8 in shoots and roots stems E. crassipes at different arsenic ions concentrations and exposure times.