Trace elements in some biomass collected from areas associated with the lignite mining and power producing enterprise Maritsa East, Bulgaria

Pages: 
pp. 49-57
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
Abstract: 

The contents and concentration trends of 53 elements in four vegetation species and their parts have been investigated. The studied samples include culture plants (wheat and sunflower) taken from the areas of Maritsa East-2 and Maritsa East-3 TEPSs as well as wild plants (Hypericum perforatum and Typha) collected from the Troyanovo-3 mine of Maritsa East lignite basin. According to the number of elements that exceed the lower limit of average values of terrestrial vegetation, the analyzed vegetation species could be arranged as follows: Hypericum perforatum > sunflower > Typha ≥ wheat. It has been found that in wheat and sunflower the elements with coefficient of concentration (CC) ≥3 exceeding the average values of terrestrial vegetation are Au and Cr, and Au and Sr, respectively. Most of the trace elements concentrate in wheat and sunflower stem+leaves while in Hypericum perforatum trace elements accumulate in blossoms. It has also been identified that the accumulated trace elements in Typha are equally distributed in all parts of the plant.

Keywords: 

biomass, trace elements, concentration trend, Bulgaria

VOLUME 42 (1-3)/December 2013

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Sofia University “St. Kliment Ohridski”, 15 Tsar Osvoboditel Blvd, 1504 Sofia, Bulgaria
|
Sofia University “St. Kliment Ohridski”, 15 Tsar Osvoboditel Blvd, 1504 Sofia, Bulgaria
|
Geological-Paleontological Institute, Geoscience Department, Basel University
|
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
|
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

National Museum of Natural History, Bulgarian Academy of Sciences, 1 Blvd. Tsar Osvoboditel, 1000 Sofia, Bulgaria
|
School of Geology, Aristotle University, 54124 Thessaloniki, Greece
|
School of Geology, Aristotle University, 54124 Thessaloniki, Greece; E-mail: lilits@geo.auth.gr

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113, Sofia, Bulgaria
|
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113, Sofia, Bulgaria

Albanian Geological Survey, Rruga e Kavajes, 153, Tirana, Albania
|
Institute of Geosciences, Water, Energy and Environment, Polytechnic University of Tirana, Tirana, Albania

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
|
University of Architecture, Civil Engineering and Geodesy, Hristo Smirnenski Blvd. 1, 1046 Sofia, Bulgaria