Table 10

Cumulative immobilisation data in definitive Daphnia test

Nominal concentration (% v/v saturated solution)
Cumulative immobilised Daphnia (initial population: 10 per replicate)



24-hour
48-hour



Number per replicate
Total
%
Number per replicate
Total
%

Control:








R1
0


0


R2
0
0
0
0
0
0
R3
0


0


R4
0


0



100% Nano cerium oxide:








R1
0


0


R2
0
0
0
0
0
0
R3
0


0


R4
0


0



100% Non nano cerium oxide:








R1
0


0


R2
0
0
0
0
0
0
R3
0


0


R4
0


0




R1
R2


R1
R2


Positive control (mg/l) (potassium dichromate):








0.32
0
0
0
0
0
0
0
0
0.56
0
0
0
0
0
0
0
0
1.0
2
4
6
30
10
10
20
100

R1 – R4 = Replicates 1 to 4

Park et al. Particle and Fibre Toxicology 2007 4:12   doi:10.1186/1743-8977-4-12