**5. Conclusions**

In order to determine the content of heavy metals in the natural environment, indicator plants are used, the so-called phytoindicators. These include plant species that can absorb and accumulate toxic substances, such as heavy metals. The conducted research makes it possible to make the conclusion that both plant species showed a high ability to absorb air pollutants, which directly translated into high concentrations of heavy metals in plants. Both the moss *P. formosum* Hedw. as well as the European blueberry *V. myrtillus* L. can be good phytoindicators in mountainous areas. The conducted research showed that both plant species accumulated greater amounts of heavy metals in the Morskie Oko test area compared to the Kasprowy Wierch area.
