The rate constant describing the decline in Ag concentration in porewater over the 21‐d exposure period and the growth rate of the plant roots and shoots over the 21‐d exposure perioda
| Treatment | λ (1/d) | k g roots (1/d) | k g shoots (1/d) |
| 20 nm pristine NM (H) | 0.0232 ± 0.0037 | 0.099 ± 0.002 | 0.169 ± 0.002 |
| 20 nm pristine NM (L) | 0.0208 ± 0.0035 | 0.117 ± 0.002 | 0.175 ± 0.001 |
| 50 nm pristine NM (H) | 0.0254 ± 0.0025 | 0.114 ± 0.002 | 0.191 ± 0.001 |
| 50 nm pristine NM (L) | 0.0067 ± 0.0038 | 0.122 ± 0.003 | 0.193 ± 0.001 |
| Ag2S NM (H) | 0.002 ± 0.0053 | 0.108 ± 0.002 | 0.169 ± 0.004 |
| Ag2S NM (L) | 0.0089 ± 0.0041 | 0.117 ± 0.002 | 0.184 ± 0.004 |
| Control | — | 0.108 ± 0.004 | 0.185 ± 0.004 |
| Treatment | λ (1/d) | k g roots (1/d) | k g shoots (1/d) |
| 20 nm pristine NM (H) | 0.0232 ± 0.0037 | 0.099 ± 0.002 | 0.169 ± 0.002 |
| 20 nm pristine NM (L) | 0.0208 ± 0.0035 | 0.117 ± 0.002 | 0.175 ± 0.001 |
| 50 nm pristine NM (H) | 0.0254 ± 0.0025 | 0.114 ± 0.002 | 0.191 ± 0.001 |
| 50 nm pristine NM (L) | 0.0067 ± 0.0038 | 0.122 ± 0.003 | 0.193 ± 0.001 |
| Ag2S NM (H) | 0.002 ± 0.0053 | 0.108 ± 0.002 | 0.169 ± 0.004 |
| Ag2S NM (L) | 0.0089 ± 0.0041 | 0.117 ± 0.002 | 0.184 ± 0.004 |
| Control | — | 0.108 ± 0.004 | 0.185 ± 0.004 |
Plants were grown in LUFA 2.2 soil spiked with different Ag nanomaterials at nominal concentrations of 3 mg and 10 mg Ag/kg dry soil.
λ = rate constant; k g = growth rate; NM = nanomaterial; H = 10 mg Ag/kg dry soil; L = 3 mg Ag/kg dry soil.
The rate constant describing the decline in Ag concentration in porewater over the 21‐d exposure period and the growth rate of the plant roots and shoots over the 21‐d exposure perioda
| Treatment | λ (1/d) | k g roots (1/d) | k g shoots (1/d) |
| 20 nm pristine NM (H) | 0.0232 ± 0.0037 | 0.099 ± 0.002 | 0.169 ± 0.002 |
| 20 nm pristine NM (L) | 0.0208 ± 0.0035 | 0.117 ± 0.002 | 0.175 ± 0.001 |
| 50 nm pristine NM (H) | 0.0254 ± 0.0025 | 0.114 ± 0.002 | 0.191 ± 0.001 |
| 50 nm pristine NM (L) | 0.0067 ± 0.0038 | 0.122 ± 0.003 | 0.193 ± 0.001 |
| Ag2S NM (H) | 0.002 ± 0.0053 | 0.108 ± 0.002 | 0.169 ± 0.004 |
| Ag2S NM (L) | 0.0089 ± 0.0041 | 0.117 ± 0.002 | 0.184 ± 0.004 |
| Control | — | 0.108 ± 0.004 | 0.185 ± 0.004 |
| Treatment | λ (1/d) | k g roots (1/d) | k g shoots (1/d) |
| 20 nm pristine NM (H) | 0.0232 ± 0.0037 | 0.099 ± 0.002 | 0.169 ± 0.002 |
| 20 nm pristine NM (L) | 0.0208 ± 0.0035 | 0.117 ± 0.002 | 0.175 ± 0.001 |
| 50 nm pristine NM (H) | 0.0254 ± 0.0025 | 0.114 ± 0.002 | 0.191 ± 0.001 |
| 50 nm pristine NM (L) | 0.0067 ± 0.0038 | 0.122 ± 0.003 | 0.193 ± 0.001 |
| Ag2S NM (H) | 0.002 ± 0.0053 | 0.108 ± 0.002 | 0.169 ± 0.004 |
| Ag2S NM (L) | 0.0089 ± 0.0041 | 0.117 ± 0.002 | 0.184 ± 0.004 |
| Control | — | 0.108 ± 0.004 | 0.185 ± 0.004 |
Plants were grown in LUFA 2.2 soil spiked with different Ag nanomaterials at nominal concentrations of 3 mg and 10 mg Ag/kg dry soil.
λ = rate constant; k g = growth rate; NM = nanomaterial; H = 10 mg Ag/kg dry soil; L = 3 mg Ag/kg dry soil.
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