## 3 Results
### Camelina
The lowest mean bioavailable amount of this metal (14.4 mg\(\cdot\)kg\({}^{-1}\)) was observed in the soil with the fly ash addition, whereas in the soil enriched with compost the mean amount of Zn\({}_{\rm DITPA}\) was 15.01 mg\(\cdot\)kg\({}^{-1}\) (Figure 2). In general, Zn levels in amelina and soil, as well as the calculated parameters, showed a similar tendency as was indicated for Cu. Bioavailable amounts of Zn as well as Zn contents in amelina grown in soil amended with compost or fly ash were significantly lower in comparison to data evaluated for the control plants. An exception was found for the Zn\({}_{\rm DITOT}\) amount, because the compost or fly ash addition into the soil did not significantly affect the total metal contents (Table 2). On the basis of the metal amounts found in amelina and soil, the bioconcentration factors were calculated by taking into account the total amounts of Cu and Zn and their bioavailable amounts. According to data in Table 2, it can be seen that the applied compost and fly ash influenced the calculated bioconcentration factors (\(\rm BCF_{T}\), \(\rm BCF_{B}\)) for both metals. The values of these parameters in the compost-enriched soil were statistically significantly lower. A similar tendency can be indicated in relation to the control soil and soil enriched with fly ash (Table 2), where the difference between values was significant. The exception was for the \(\rm BCF_{B}\) values calculated for Zn, because a lack of differences was observed between the control soil and that fertilized with fly ash (\(p\)-value = 0.261, Table 2). The values of bioconcentration factors for amelina are presented in Figure 3. According to these data, \(\rm BCF_{T}\) for Cu averaged from 0.2 (TI, TII) to 0.4 (T0), whereas for Zn it was from 0.8 (TI, TII) to 1.1 (T0). Slightly higher average values were found for \(\rm BCF_{B}\), which for Cu ranged from 0.5 (TI) to 0.7 (T0). In the case of Zn, these parameters showed higher average values ranging from 5.4 (TI) to 6.3(T0). For Cu under the control conditions, the values were higher by 43% (\(\rm BCF_{T}\)) and 15-27% (\(\rm BCF_{B}\)) compared to those found for soils fertilized with compost or fly ash. In the case of Zn, the above bioconcentration factors were also higher in the control soil by 24-28% (\(\rm BCF_{T}\)) and by 14% (\(\rm BCF_{B}\)) (Figure 3). Figure 1: Cu contents in amelina and soil (total and bioavailable amounts) * descriptions see at Material and Methods, statistically significant differences and \(p\)-value are presented in Table 2.  
When assessing the influence of the applied additives on the estimated daily intake (EDI) and health risk index (HRI), it was marked more strongly in the case of the first parameter, with the calculated values of EDI and HRI for Cu and Zn being greater for women than for men. Based on the data in Table 2, it can be seen that the applied compost and fly ash also influenced the estimated daily intake (EDI) and health risk index (HRI). The values of these parameters in the compost-enriched soil were statistically significantly lower. A similar tendency can be indicated in relation to the control soil and soil enriched with fly ash (Table 2), where the difference between values was significant. As presented in Figure 4, the average values of EDI for women ranged from 5.3 ug\(\cdot\)kg\({}^{-1}\) (TI) to 8.5 ug\(\cdot\)kg\({}^{-1}\) (T0), whereas for HRI it was from 0.13 (TI) to 0.21 (T0). In the case of men, the lowest average EDI and HRI values were determined for TI (4.2 ug\(\cdot\)kg\({}^{-1}\) and 0.10, respectively,  
Figure 3: Bioconcentration factors for total (BCF\({}_{\text{T}}\)) and bioavailable amounts (BCF\({}_{\text{B}}\)) calculated for Cu and Zn in camelina; * for descriptions see Material and Methods.