## 3 Results  
We have collected over 400 samples of atmospheric depositions in both sampling locations in 2015-2020. Some statistical characteristics of nutrient's concentrations are presented in the Tables 1 and 2. The maximum inorganic nitrogen concentration in Sevastopol was detected in September 2019 and April 2019 for the wet-only and open samplers respectively. The maximum inorganic phosphorus concentration for wet-only sampler was detected in June 2017, and for the open one in July 2015. Maximum silicon concentration in the samples of atmospheric deposition collected in wet-only sampler was detected in September 2017. For the open sampler maximum silicon concentration was detected in November 2018. In Katsiveli the maximum inorganic nitrogen concentration was detected in December 2020 for both samplers. Maximum phosphorus concentration for wet-only sampler was detected in May 2015, and for the open one in July 2016. Maximum concentrations of silicon for both types of samplers were detected in June 2016. Inorganic nitrogen in wet samples in both rural and urban locations was mainly represented by nitrates and ammonium (Table 3). The intra-annual distribution of nutrients monthly volume-weighted mean concentrations (VWM) with the atmospheric precipitations is shown in Figures 2 and 3. \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline  & \multicolumn{2}{c}{**Nitrogen**} & \multicolumn{2}{c}{**Phosphorus**} & \multicolumn{2}{c}{**Silicon**} \\ \cline{2-7}  & \begin{tabular}{c} **Wet-Only** \\ **Sampler** \\ \end{tabular} & \multirow{2}{*}{**Open Sampler**} & \begin{tabular}{c} **Wet-Only** \\ **Sampler** \\ \end{tabular} & \multirow{2}{*}{**Open Sampler**} & \begin{tabular}{c} **Wet-Only** \\ **Sampler** \\ \end{tabular} & \multirow{2}{*}{**Open Sampler**} \\ \cline{2-7}  & \
\begin{tabular}{c} **Wet-Only** \\ **Sampler** \\ \end{tabular} & & & & & \\ \hline \hline \end{tabular}
\begin{tabular}{c} Av \\ \end{tabular}
\end{table} 
Table 1: Characteristics of nutrients concentration in the sample of atmospheric depositions in Sevastopol. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline  & \multicolumn{2}{c}{**Nitrogen**} & \multicolumn{2}{c}{**Phosphorus**} & \multicolumn{2}{c}{**Silicon**} \\ \cline{2-7}  & \begin{tabular}{c} **Wet-Only** \\ **Sampler** \\ \end{tabular} & \multirow{2}{*}{**Open Sampler**} & \begin{tabular}{c} **Wet-Only** \\ **Sampler** \\ \end{tabular} & \multirow{2}{*}{**Open Sampler**} & \begin{tabular}{c} **Wet-Only** \\ **Sampler** \\ \end{tabular} & \multirow{2}{*}{**Open Sampler**} \\ \cline{2-7}  & \
\begin{tabular}{c} **Wet-Only** \\ **Sampler** \\ \end{tabular} & & & & \\ \hline \hline \end{tabular}
\begin{tabular}{c} Av \\ \end{tabular}
\end{table} 
Table 2: Characteristics of nutrients concentration in the sample of atmospheric depositions in Katsiveli. \begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Sampling Site** & **Nitrates, \%** & **Ammonium, \%** & **Nitrites, \%** \\ \hline \hline \
\begin{tabular}{c} Sevastopol \\ \end{tabular} & 57 & 42 & 1 \\ \hline
\begin{tabular}{c} Katsiveli \\ \end{tabular} & 54 & 36 & 7 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Contributions of inorganic nitrogen forms for sampling sites. Figure 2: Intra-annual distribution of nutrients monthly volume-weighted mean concentrations in the atmospheric precipitations in Sevastopol in both types of samplers: for inorganic nitrogen (**a,b**), inorganic phosphorus (**c,d**), silicon (**e,f**). The molar phosphorus and silicon fluxes with atmospheric depositions in both urban and rural areas were significantly lower than inorganic nitrogen flux. Yet, there were recorded cases of significant increase in inorganic phosphorus and silicon concentrations reaching more than 300% in samples collected in samplers collected wet and dry depositions as compared to samples collected in samplers for wet depositions (Figure 4).