Table 2 Effects of NM-103 in the earthworm reproduction test
From: Effect of TiO2 nanoparticles in the earthworm reproduction test
Test and test start | Test concentration (mg/kg sdm) | Mortality (%) | Biomass per vessel at test start (g) ± SD | Biomass per vessel at test end (g) ± SD | Increase in biomass (%) | Number of juveniles per test vessel ± SD | SD (%) | Effect on reproduction (%) |
|---|---|---|---|---|---|---|---|---|
Test 1 - April 2010 | 0 (control) | 0 | 3.86 ± 0.22 | 5.55 ± 0.27 | 44 | 365 ± 43 | 11.8 | - |
|  | 50 | 0 | 3.86 ± 0.22 | 5.51 ± 0.50 | 44 | 338 ± 20 | 5.9 | 7.4 |
|  | 100 | 0 | 3.83 ± 0.27 | 5.73 ± 0.58 | 52 | 372 ± 57 | 15.3 | -1.9a |
|  | 200 | 0 | 3.78 ± 0.38 | 5.70 ± 0.27 | 56 | 343 ± 34 | 9.9 | 6.0 |
Test 2 - January 2011 | 0 (control) | 0 | 3.65 ± 0.22 | 5.65 ± 0.26 | 55 | 223 ± 15 | 6.7 | - |
|  | 50 | 0 | 3.67 ± 0.33 | 5.68 ± 0.15 | 55 | 240 ± 31 | 12.9 | -7.6a |
|  | 100 | 0 | 3.47 ± 0.27 | 5.77 ± 0.30 | 67 | 252 ± 42 | 16.7 | -13.0a |
|  | 200 | 0 | 3.45 ± 0.13 | 5.71 ± 0.48 | 66 | 233 ± 40 | 17.2 | -4.5a |
|  | 400 | 0 | 3.61 ± 0.22 | 5.98 ± 0.40 | 66 | 237 ± 38 | 16.0 | -6.3a |