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 |