# Mineral Composition of _Chelidonium majus_ L. and Soils in Urban Areas
## 3 Results
### Concentration of Microelements in Tissues of Chelidonium majus and Soil  
The content of microelements in the individual parts of _Ch. majus_ (leaves, stems, and roots) varied, as shown in Table 2. In most cases, high concentrations of Mo, Sr, B, Ba, Rb, Sn, and Re (present only in leaves) were found. In contrast, Ag, Co, Ti, Tl, Ga, Zr, Y, Ce, Be, and Li were detected in the roots. The remaining elements analyzed were present in trace amounts and were below detection limits (Table 2).  
As for the content of trace elements and rare earth elements in the soil under the tufts of _Ch. majus_, there was substantial variation, and their small amounts were also reflected in the composition of _Ch. majus_ tissues (Table 2). In the analyzed samples from all locations, silver and antimony exceeded the geochemical background (Table 2), with their values ranging from 179 to 619 mg\(\cdot\)kg\({}^{-1}\) and 0.94 to 9.92 mg\(\cdot\)kg\({}^{-1}\), respectively. Bismuth, selenium, lithium (except PK/L-4,5), tin (PSh-1, PSh-2, PS-6), beryllium (PSh-2), and palladium (PSh-2, PS-6) also exceeded the acceptable thresholds.  
\begin{table}
\begin{tabular}{c c c c c c c c c c} \hline  & & **Fe** & **Ca** & **P** & **Mg** & **Al** & **Na** & **K** & **S** \\ \hline \multicolumn{10}{c}{**[mg\(\cdot\)kg\({}^{-1}\)]**} \\ \hline
**Reference Values** & **4.32 \({}^{*}\)** & **3.85 \({}^{*}\)** & **0.08 \({}^{*}\)** & **2.20 \({}^{*}\)** & **7.96 \({}^{*}\)** & **2.36 \({}^{*}\)** & **2.14 \({}^{*}\)** & **0.07 \({}^{*}\)** \\ \hline \multirow{4}{*}{**[m]**} & Leaves & 1700 & 29,900 & 5600 & 4400 & 500 & 100 & 45200 & 3200 \\  & Stems & 600 & 9700 & 3500 & 1700 & 200 & 100 & \textgreater{}100,000 & 800 \\  & Rhizomes & 1800 & 7200 & 4500 & 3000 & 700 & 100 & 26,500 & 1700 \\  & Soil & 25,700 & 10,600 & 800 & 1900 & 8500 & 200 & 1200 & 800 \\ \hline \multirow{4}{*}{**[m]**} & Leaves & 700 & 34,400 & 3100 & 4100 & 100 & 100 & 43,900 & 3300 \\  & Stems & 400 & 8400 & 1800 & 1500 & n.d. & 100 & \textgreater{}100,000 & 700 \\  & Rhizomes & 1500 & 8900 & 3700 & 2600 & 500 & 200 & 24,400 & 2000 \\  & Soil & 27,600 & 12,600 & 600 & 2100 & 9400 & 200 & 1200 & 900 \\ \hline \multirow{4}{*}{**[m]**} & Leaves & 700 & 24,700 & 3600 & 3500 & 200 & n.d. & 50,000 & 2200 \\  & Stems & 300 & 8200 & 2100 & 1600 & n.d. & 100 & \textgreater{}100,000 & 700 \\  & Rhizomes & 800 & 8500 & 3600 & 2900 & 300 & 100 & 26,600 & 1800 \\  & Soil & 14,400 & 6500 & 500 & 1300 & 5300 & 100 & 700 & 800 \\ \hline \multirow{4}{*}{**[m]**} & Leaves & 1400 & 32,600 & 4800 & 4400 & 400 & 100 & 37,700 & 2600 \\  & Stems & 500 & 8100 & 4500 & 2000 & 200 & 100 & 53,100 & 800 \\  & Rhizomes & 1300 & 5400 & 4700 & 3600 & 600 & 100 & 25,900 & 1700 \\  & Soil & 20,200 & 21,400 & 1000 & 4500 & 9800 & 900 & 1200 & 1800 \\ \hline \multirow{4}{*}{**[m]**} & Leaves & 800 & 25,100 & 4400 & 4500 & 200 & 100 & 46,700 & 2700 \\  & Stems & 500 & 6500 & 3000 & 1500 & 200 & 100 & 63,000 & 700 \\  & Rhizomes & 700 & 7200 & 4300 & 3800 & 300 & 100 & 22,800 & 1500 \\  & Soil & 10,700 & 15,000 & 1100 & 3200 & 6000 & 100 & 1200 & 1100 \\ \hline \multirow{4}{*}{**[m]**} & Leaves & 800 & 40,700 & 5100 & 4300 & 100 & n.d. & 35,400 & 2700 \\  & Stems & 600 & 6300 & 3100 & 1000 & 100 & n.d. & 59,200 & 700 \\ \cline{1-1}  & Rhizomes & 1100 & 5400 & 4800 & 2400 & 300 & 100 & 29,900 & 1900 \\ \cline{1-1}  & Soil & 21,000 & 11,000 & 900 & 1700 & 5100 & 100 & 1100 & 2100 \\ \hline \end{tabular} \({}^{*}\)—values given by [PERSON] [48]—average element concentrations in the Continental Crust.  
\end{table}
Table 1: The concentration of major elements in leaves, aerial, and underground parts of _Chidonium majus_.