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Stefan Tsakovski

Email: stsakovski@chem.uni-sofia.bg

Phone: + 359 2 8161426

Fax: + 359 2 9625 438

University of Sofia „St. Kliment Ohridski”

Faculty of Chemistry and Pharmacy

1164 Sofia, 1 James Bourchier Blivd.


  • M. Sc. – Chemistry – Inorganic and analytical chemistry, Sofia University „St. Kliment Ohridski”, 1992
  • Ph.D – Analytical chemistry, Sofia University „St. Kliment Ohridski”, 1999

Professional Experience

  • Assistant Professor, Sofia University „St. Kliment Ohridski”, 1997 – 1999
  • Head Assistant Professor, Sofia University „St. Kliment Ohridski”, 1999 – 2004
  • Associate Professor, Sofia University „St. Kliment Ohridski”, 2004 – 2012
  • Full Professor, Analytical chemistry, Sofia University „St. Kliment Ohridski”, 2012 –

Specializations and Visiting Professor at:

  • University of Potsdam, Potsdam, Germany
  • Babeș-Bolyai University, Cluj-Napoca, Romania
  • Aristotle University of Thessaloniki, Thessaloniki, Greece
  • Technical University of Vienna, Vienna, Austria
  • University of Antwerp, Antwerp, Belgium
  • Friedrich-Schiller University of Jena, Jena, Germany
  • Gdansk University of Technology, Gdansk, Poland

Research Interests

  • Environmental analytical chemistry
  • Chemometrics and Environmetrics
  • Chemical Education

Selected Publications (max 5)

  1. A. Astel, S. Tsakovski, P. Barbieri and V. Simeonov. Comparison of Self-Organizing Maps Classification Approach with Cluster and Principal Components Analysis for Large Environmental Data Sets. Water Res., 41 (19), 2007, 4566-4578
  2. S. Tsakovski, M. Tobiszewski, V. Simeonov, Z. Polkowska and J. Namiesnik. Chemical Composition of Water from the Roofs in Gdansk, Poland. Envir. Pollut., 158, 2010, 84-91
  3. B. Campos, N. Garcia-Reyero, C. Rivetti, L. Escalon, T. Habib, R. Tauler, S. Tsakovski, B. Pina and C. Barata. Identification of metabolic pathways in daphnia magna explaining hermetic effects of selective serotonin reuptake inhibitors and 4-nonyphenol using transcriptomic and phenotypic responses. ES&T, 47 (16), 2013, 9434-3443
  4. M. Farrés, S. Platikanov, S. Tsakovski and R. Tauler. Comparison of the variable importance in projection (VIP) and of the selectivity ratio (SR) methods for variable selection and interpretation. J. Chemomet., 29 (10), 2015, 528-536
  5. G. Yotova, M. Padareva, M. Hristova, A. Astel, M. Georgieva, N. Dinev, S. Tsakovski. Establishment of Geochemical Background and Threshold Values for 8 Potential Toxic Elements in the Bulgarian Soil Quality Monitoring Network. Sci. Total Environ., 643, 2018, 1297-1303.

List of Publications

Project Activity – (Research Projects in the last 5 years)

  • National Science Program "Environmental Protection and Reduction of Risks of Adverse Events and Natural Disasters", Ministry of Education and Science of Bulgaria, team member, 2018 –
  • Environmental impact assessment of waste water treatment plants on receiving water bodies, National Science Fund of Bulgaria, project leader, 2017 –
  • Statistical modeling of environmental and human risk of heavy metal polluted soils, National Science Fund of Bulgaria, project leader, 2014 – 2018

Teaching Activity

Period from - to Discipline Specialty
2008 - Statistical data treatment

BSc Chemistry and Informatics

BSc Computer Chemistry

2008 - Applied statistics BSc Environmental chemistry
2012 - Environmetrics BSc Environmental chemistry
2012 - Chemometrics

BSc Chemistry

BSc Computer Chemistry

2013 - Information technology and statistics MSc Pharmacy

External Scientific Service Activities

Member of Editorial Board of:

  • Molecules

Reviewer of Manuscripts for:

  • TrAC, Journal of Environmental Science & Health, Journal of Hazardous Materials, Water, Air, and Soil Pollution, Environmental Modelling&Software, Central European J Chemistry, Analytica Chimica Acta, Analytical Letters, Analytical & Bioanalytical Chemistry, Chemometrics & Intelligent Laboratory Systems, Talanta, Chemosphere.

Authored Books and Books Chapters

  • S. Tsakovski, V. Simeonov. Hasse Diagrams as Exploratory Tool in Environmental Data Mining: A Case Study. In: Multicriteria ordering and ranking: Partial orders, ambiquities and applied issues. (Editors: J. Owsinski and R. Bruggemann), Systems Research Institute, Polish Academy of Sciences, Warsaw 2008, 49-65pp.
  • S. Tsakovski, V. Simeonov. Chemometrics as a Tool for Treatment Processing of Multiparametric Analytical Data Sets. In: Analytical Measurements in Aquatic Environments (Analytical Chemistry) (J. Namiesnik and P. Szefer Eds.), Chapter 15, CRC Press and IWA Publishing, 2009, pp. 369-387. ISBN 478-3-4200-8268-5.
  • Stefan Tsakovski and Vasil Simeonov. "Hasse Diagram Technique Contributions to Environmental Risk Assessment." Multi-indicator Systems and Modelling in Partial Order. Springer New York, 2014, pp. 293-313