## 3 Experimental Part  
### Sampling  
Fifteen samples were collected at the end of January (30-31 Jan) 2024 after fresh snowfall (Figure 2, Table 1). The weather conditions preceding sample collection, based on the data provided by Zawoja Station of the Institute of Meteorology and Water Management--National Research Institute, are shown in Figure 4.  
Figure 3: Wind direction in the study area [47]. Global Wind Atlas, simulation model for the height of 10 m.  
\begin{table}
\begin{tabular}{c c c c c} \hline \hline \multirow{2}{*}{**Sample No**} & \multirow{2}{*}{**District Name**} & \multirow{2}{*}{**Coordinates, Altitude**} & \multicolumn{2}{c}{**Pollution Factor (PF) 1:**Distance from the Road, II—Distance from Tourist Attractions, III—Industrial and IV—Commercial Sites, V—Population Density VI—Distance from the Forest, VII—Altitude**} & \multirow{2}{*}{**Photo**} \\ \hline
1 & Zawoja Snoza & 49°36′59′′ N 19°30′35′′ E, 630 m asl & I-0, II-1, IV-0, V-0, VI-2, VII-2 & \\  & & 617 m asl & Wasteland, meadow, vicinity of forest, \textgreater{}100 m & \\  & & &  
\begin{table}
\begin{tabular}{c c c c} \hline \hline  & & & **Pollution Factor (PF) 1:–Distance from the Road, II–Distance from Toutist Attractions, III–Industrial and IV––Commercial Sites, V–Population Density, VI–Distance from the Forest, VII–Altitude** \\ \hline
10 & Zawoja Welcza, final bus stop & 49\({}^{\circ}\)38’44\({}^{\prime\prime}\) N 19\({}^{\circ}\)30’19\({}^{\prime\prime}\) E, 661 m asl & I-2, II-0, III-0, IV-0, V-2, VI-2, VII-1 PF = 7 20 m from the secondary road, 30 m from the nearest household \\
11 & Zawoja Welcza PTSM & 49\({}^{\circ}\)39’07\({}^{\prime\prime}\) N 19\({}^{\circ}\)30’45\({}^{\prime\prime}\) E, 628 m asl & I-3, II-3, III-0, IV-3, V-4, VI-4, VII-2 PF = 19 10 m from the secondary road, 30 m from the nearest household, 20 m from the youth tourist shelter and 20 m from the church \\
12 & Zawoja Centrum church & 49\({}^{\circ}\)39’38\({}^{\prime\prime}\) N 19\({}^{\circ}\)33’37\({}^{\prime\prime}\) E, 536 m asl & I-3, II-5, III-0, IV-5, V-5, VI-5, VII-5 PF = 28 10 Village centre, by the church car park \\
13 & Zawoja Dolna & 49\({}^{\circ}\)39’56\({}^{\prime\prime}\) N 19\({}^{\circ}\)35’09\({}^{\prime\prime}\)E, 527 m asl & I-2, II-0, III-3, IV-0, V-3, VI-4, VII-5 PF = 17 10 Viinity of PCV window factory, outside of the buildup area \\
14 & Zawoja Podpolice & 49\({}^{\circ}\)39’15\({}^{\prime\prime}\) N 19\({}^{\circ}\)35’28\({}^{\prime\prime}\)E, 603 m asl & I-2, II-0, III-0, IV-0, V-0, VI-0, VII-3 PF = 5 10 Forest \\
15 & Zawoja Przyshup & 49\({}^{\circ}\)41’10\({}^{\prime\prime}\) N 19\({}^{\circ}\)33’58\({}^{\prime\prime}\)E, 659 m asl & I-1, II-0, III-0, IV-0, V-2, VI-3, VII-2 PF = 8 \\ \hline \hline \end{tabular}
\end{table}
Table 1: _Cont._To collect a representative sample from each site, a simple field method was invented using the following materials (Figure 5):  
* A set of stainless steel tools: a short pipe fragment (H = 5 cm, \(\O\) = 21 cm), a 30 \(\times\) 40 cm sheet metal, a shovel, and a funnel;
* Amber glass bottle (prewashed with GC-MS grade dichloromethane and LC-MS grade water).  
The pipe was used to collect a snow core, which was then cut off with sheet metal and transferred by shovel and funnel into the amber glass bottle. Depending on the snow structure at the site, one to four snow cores were collected from each sampling spot, yielding a snow volume ranging from 1731 to 6925 cm\({}^{3}\).  
The sampling sites were distributed to represent the topographical and land-use diversity of the village as well as variations in tourist traffic intensity (Figure 2 and Table 1) Every sampling point was marked on the map with its corresponding coordinates and elevation using the Locus GIS application.