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The aim of the research was comparison rare earth elements contents in acidic waters related to coal mining in the eastern part of the Upper Silesian Coal Basin (USCB), southern Poland, and the former lignite mining in the Polish part of the Muskau Bend. Acidic runoff waters flowing down from mine waste piles in the USCB are enriched with REEs (ΣREEs 478.5 and 1831.9 µg/l) compared to waters filling...
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