The aim of this study was to determine, by use PCA analysis, the impact of meteorological elements on the PM₁₀ concentration on the example of the mountain valley. Daily values of selected meteorological elements, measured during a ten-year period in the spring, summer, autumn and winter, obtained from the meteorological station in Nowy Sącz, were adopted as variables explaining PM₁₀ concentration. The level of PM₁₀ was significantly affected by the maximum, minimum and average temperature in autumn, winter and spring. In summer the average and maximum temperature was significant. In winter, the first principle component mainly consisted of the combination of the average and maximum wind speed. The second principal component in spring, summer and autumn was the combination of the wind speed (average and maximum), but in winter humidity and atmospheric pressure seemed to be significant. The third principal component, in terms of strength of impact, was humidity in spring, the combination of humidity and minimum temperature in summer, and precipitation in autumn. In winter, the highest PM₁₀ concentrations were observed during the non-directional, anticyclonic wedge conditions. Three principal components were distinguished in this situation: temperature (average, maximum and minimum); the combination of humidity and wind speed and precipitation.

Cel pracy: Celem pracy była ocena zmienności czasowo przestrzennej jakości powietrza atmosferycznego na obszarze Pienińskiego Parku Narodowego (PPN) jak i jego otuliny. Materiał i metody: Ocenę jakości powietrza przeprowadzono w oparciu o stężenie w imisji jednego z gazów...