Table 3 Effects of NM-105 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 - January 2010 | 0 (control) | 0 | 3.29 ± 0.24 | 5.47 ± 0.36 | 67 | 212 ± 46 | 21.7 | - |
|  | 50 | 0 | 3.37 ± 0.43 | 5.80 ± 0.15 | 74 | 295 ± 44 | 14.9 | -39.2a** |
|  | 100 | 0 | 3.49 ± 0.13 | 5.47 ± 0.10 | 57 | 299 ± 74 | 14.7 | -41.0a** |
|  | 200 | 0 | 3.45 ± 0.14 | 5.47 ± 0.11 | 59 | 315 ± 42 | 13.3 | -48.6a** |
Test 2 - May 2010 | 0 (control) | 0 | 3.81 ± 0.30 | 5.37 ± 0.34 | 41 | 340 ± 39 | 11.5 | - |
|  | 50 | 0 | 3.62 ± 0.10 | 5.09 ± 0.20 | 41 | 341 ± 33 | 9.7 | -0.3a |
|  | 100 | 0 | 3.66 ± 0.11 | 5.66 ± 0.33 | 55 | 343 ± 28 | 8.2 | -0.9a |
|  | 200 | 0 | 3.58 ± 0.11 | 5.17 ± 0.40 | 44 | 290 ± 24 | 8.3 | 14.7 |
|  | 500 | 0 | 3.54 ± 0.08 | 5.24 ± 0.40 | 48 | 253 ± 62 | 24.5 | 25.5 |
|  | 1,000 | 0 | 3.63 ± 0.23 | 5.57 ± 0.26 | 54 | 319 ± 43 | 13.5 | 6.5 |
Test 3 - January 2011 | 0 (control) | 0 | 3.70 ± 0.26 | 5.26 ± 0.40 | 42 | 208 ± 15 | 7.2 | - |
|  | 50 | 0 | 3.68 ± 0.16 | 5.36 ± 0.08 | 46 | 239 ± 22 | 9.2 | -8.8a* |
|  | 100 | 0 | 3.57 ± 0.20 | 5.39 ± 0.19 | 52 | 252 ± 15 | 6.0 | -14.9a** |
|  | 200 | 0 | 3.46 ± 0.09 | 5.58 ± 0.24 | 61** | 265 ± 31 | 11.7 | -27.4a** |
|  | 500 | 0 | 3.59 ± 0.22 | 5.37 ± 0.46 | 50 | 238 ± 11 | 4.6 | -14.4a** |
|  | 750 | 0 | 3.58 ± 0.12 | 5.43 ± 0.36 | 52 | 279 ± 27 | 9.8 | -34.1a** |
|  | 1,000 | 0 | 3.43 ± 0.18 | 5.29 ± 0.53 | 54 | 286 ± 21 | 7.3 | -37.5a** |