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The phase-mineral composition of the feed coal (FC) from Maritza East lignite used in the Maritza East 1 thermo-electric power station (TEPS) and lagooned ashes (LAs) generated from the burning of this lignite was studied. The concentration and behaviour of 19 trace elements in the FC and LAs, as well as in the soils and plants collected from the restored sites of former LA disposals are also described...