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@article{2239312,
author = {Faimon, Jiří and Baldík, Vít and Buriánek, David and Rez, Jiří and Štelcl, Jindřich and Všianský, Dalibor and Sedláček, Jan and Dostalík, Martin and Nečas, Jiří and Novotný, Roman and Hadacz, Roman and Kryštofová, Eva and Novotná, Jitka and Müller, Pavel and Krumlová, Hana and Čáp, Pavel and Faktorová, Karolína and Malík, Jan and Roháč, Jakub and Kycl, Petr and Janderková, Jana},
article_number = {November},
doi = {http://dx.doi.org/10.1016/j.scitotenv.2022.157433},
keywords = {Ferrous slag; Slag transport/weathering; Rudice Sink – Býčí skála Cave System; Experimental abrasion; Pollutant release; Environmental risk},
language = {eng},
issn = {0048-9697},
journal = {Science of The Total Environment},
title = {Historical ferrous slag induces modern environmental problems in the Moravian Karst (Czech Republic)},
url = {https://www.sciencedirect.com/science/article/pii/S0048969722045314?via%3Dihub},
volume = {847},
year = {2022}
}
TY - JOUR
ID - 2239312
AU - Faimon, Jiří - Baldík, Vít - Buriánek, David - Rez, Jiří - Štelcl, Jindřich - Všianský, Dalibor - Sedláček, Jan - Dostalík, Martin - Nečas, Jiří - Novotný, Roman - Hadacz, Roman - Kryštofová, Eva - Novotná, Jitka - Müller, Pavel - Krumlová, Hana - Čáp, Pavel - Faktorová, Karolína - Malík, Jan - Roháč, Jakub - Kycl, Petr - Janderková, Jana
PY - 2022
TI - Historical ferrous slag induces modern environmental problems in the Moravian Karst (Czech Republic)
JF - Science of The Total Environment
VL - 847
IS - November
SP - 1-19
EP - 1-19
PB - Elsevier
SN - 00489697
KW - Ferrous slag
KW - Slag transport/weathering
KW - Rudice Sink – Býčí skála Cave System
KW - Experimental abrasion
KW - Pollutant release
KW - Environmental risk
UR - https://www.sciencedirect.com/science/article/pii/S0048969722045314?via%3Dihub
N2 - Ferrous slag produced by a historic smelter is washed from a slagheap and transported by a creek through a cave system. Slag filling cave spaces, abrasion of cave walls / calcite speleothems, and contamination of the aquatic environment with heavy metals and other toxic components are concerns. We characterize the slag in its deposition site, map its transport through the cave system, characterize the effect of slag transport, and evaluate the risks to both cave and aqueous environments. The study was based on chemical and phase analysis supported laboratory experiments and geochemical modeling. The slag in the slagheap was dominated by amorphous glass phase (66 to 99 wt%) with mean composition of 49.8 ± 2.8 wt% SiO2, 29.9 ± 1.6 wt% CaO, 13.4 ± 1.2 wt% Al2O3, 2.7 ± 0.3 wt% K2O, and 1.2 ± 0.1 wt% MgO. Minerals such as melilite, plagioclase, anorthite, and wollastonite / pseudowollastonite with lower amounts of quartz, cristobalite, and calcite were detected. Slag enriches the cave environment with Se, As, W, Y, U, Be, Cs, Sc, Cd, Hf, Ba, Th, Cr, Zr, Zn, and V. However, only Zr, V, Co, and As exceed the specified limits for soils (US EPA and EU limits). The dissolution lifetime of a 1 mm3 volume of slag was estimated to be 27,000 years, whereas the mean residence time of the slag in the cave is much shorter, defined by a flood frequency of ca. 47 years. Consequently, the extent of slag weathering and contamination of cave environment by slag weathering products is small under given conditions. However, slag enriched in U and Th can increase radon production as a result of alpha decay. The slag has an abrasive effect on surrounding rocks and disintegrated slag can contaminate calcite speleothems.
ER -
FAIMON, Jiří, Vít BALDÍK, David BURIÁNEK, Jiří REZ, Jindřich ŠTELCL, Dalibor VŠIANSKÝ, Jan SEDLÁČEK, Martin DOSTALÍK, Jiří NEČAS, Roman NOVOTNÝ, Roman HADACZ, Eva KRYŠTOFOVÁ, Jitka NOVOTNÁ, Pavel MÜLLER, Hana KRUMLOVÁ, Pavel ČÁP, Karolína FAKTOROVÁ, Jan MALÍK, Jakub ROHÁČ, Petr KYCL a Jana JANDERKOVÁ. Historical ferrous slag induces modern environmental problems in the Moravian Karst (Czech Republic). \textit{Science of The Total Environment}. Elsevier, 2022, roč.~847, November, s.~1-19. ISSN~0048-9697. Dostupné z: https://dx.doi.org/10.1016/j.scitotenv.2022.157433.
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