About the Authors

Boris Skip

Affiliations Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland, Department of Physical Chemistry and Environmental Chemistry, Chernivtsi National University, Chernivtsi, Ukraine

Agnieszka J. Bednarska

bednarska@iop.krakow.pl

Affiliation Institute of Nature Conservation, Polish Academy of Sciences, Kraków, Poland

Ryszard Laskowski

Affiliation Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AJB RL. Performed the experiments: AJB. Analyzed the data: BS AJB RL. Contributed reagents/materials/analysis tools: BS. Wrote the paper: RL ABJ BS.