@misc{Sołtysiak_Marek._Autor_Characteristics_2025,
 author={Sołtysiak, Marek. Autor and Różkowski, Jacek. Autor},
 volume={98},
 number={2},
 copyright={Creative Commons Attribution BY 4.0 license},
 address={Warszawa},
 journal={Geographia Polonica},
 howpublished={online},
 year={2025},
 publisher={IGiPZ PAN},
 language={eng},
 abstract={This article presents research results on the water chemistry of 16 reservoirs adjacent to post-mining waste landfills in the Upper Silesian Coal Basin, sampled in 2022 and 2023. The waters of these reservoirs are anthropogenically modified; in terms of hydrochemical type, they are multi-ionic waters. The Comprehensive Pollution Index (CPI) was also used to assess the degree of water pollution. Calculations indicated that the waters are either moderately (0.47 < CPI < 1.92) or heavily polluted (CPI > 2). Research has also shown that areas reclaimed with mining waste are informal post-mining waste dumps and should be treated as potential sources of groundwater pollution. In nearby reservoirs, there is a potential threat to shallow (0-10 m) groundwater of the first aquifer, which is especially important when the first aquifer is being used.},
 title={Characteristics of the chemical composition of water in reservoirs under the influence of coal mine waste in the Upper Silesian Coal Basin (southern Poland)},
 type={Text},
 URL={http://www.rcin.org.pl/igipz/Content/245362/WA51_282056_r2025-t98-no2_G-Polonica-So%C5%82tys.pdf},
 keywords={mining waste dumps, water reservoirs, Upper Silesian Coal Basin, environmental hazards},
}