DM Conc. (µg/l)

No. of alive fish

No. of dead fish

a

b

a × b

0.00

8

0

0.00

0.00

0.00

10.0025

6

2

10.0025

1

10.0025

20.005

5

3

10.0025

2.5

25.00625

40.01

4

4

20.005

3.5

70.0175

80.02

2

6

40.01

5

200.05

160.04

0

8

80.02

7

560.14