PhD Polona Vreča

PhD Polona Vreča
no.: 18290 source: ARIS

researcher – active in research organisation
(01) 588 53 04
  polona.vrecaat signijs.si
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Research activity

Code Science Field Subfield
1.06.04  Natural sciences and mathematics  Geology  Geochemistry 

Code Science Field
P005  Natural sciences and mathematics  Geology, physical geography 
Keywords
Environmental geochemistry, pollution, marine and lacustrine sediments, healing muds, heavy metals, stable isotopes, biogeochemical cycles
Bibliography Representative bibliographic units | Personal | COBISS+
source: COBISS
source: SICRIS
Evaluation (metodology)
Evaluation of bibliographic research performance indicators according to ARIS methodology
source: COBISS
source: ARIS
Points
741.85
A''
69.44
A'
415.16
A1/2
445.57
CI10
806
CImax
62
h10
16
A1
2.61
A3
0.41
Data for the last 5 years (citations for the last 10 years) on November 10, 2025; Data for score A3 calculation refer to period 2020-2024 (2020, 2021, 2022, 2023, 2024)
Data for ARIS tenders ( 21.05.2024 – Target research programmes, archive )
Citations Citations for bibliographic records in COBIB.SI that are linked to records in citation databases
source: WoS source: Scopus source: COBISS
Database Linked records Citations Pure citations Average pure citations
WoS 56  1,011  824  14.71 
Scopus 64  1,295  1,006  15.72 
Mentoring junior researchers
source: ARIS
no. Name and surname Type Period Code
1 PhD Klara Žagar   Bologna doctoral studies  10/1/2019 - 9/30/2023  53459 
Education
source: ARIS
Level of education Professional title Study subject Faculty Year
    Geology  SI 1995 
Master's degree    Gy  SI University of Ljubljana, Faculty of Natural sciences and Engineering 1998 
Doctoral degree  Ph. D.   Geology  SI University of Ljubljana, Faculty of Natural Sciences and Engineering 2000 
Doctoral dissertations and other final papers Show
Obtaining results now
source: COBISS
Employments
source: ARIS
Type of employment Research org. Research group Date of employment Position Role Title
Full time employment (100%, RD:100%)  Jožef Stefan Institute  Department of Environmental Sciences  10/15/1997  Research assistant  Researcher   
Research projects Legend
source: ARIS
no. Code Title Period Head
1. J1-60008  DISCOVER - Drava Isotopes: Comprehensive Overview of Various Environmental Contaminants and Risks using Advanced Analytical Techniques   5/1/2025 - 4/30/2028  PhD Tea Zuliani   3,416 
2. N1-0309  Validation of catchment-scale contaminant transport models using stable isotopes and multi-element measurements   1/1/2023 - 12/31/2026  PhD Radmila Milačič Ščančar   2,855 
3. L7-50097  Hydro-ecologically based operation of run-of-river reservoirs for effective sediment management and energy production   10/1/2023 - 9/30/2026  PhD Mateja Klun   8,990 
4. J6-50214  Supporting Holocene Climate Reconstruction with High-Resolution Cryospheric Proxies from the Karst Ice Caves of Slovenia   10/1/2023 - 9/30/2026  PhD Jure Tičar   5,048 
5. V1-2319  The presence of mercury in drinking water in the area of ​​the Municipality of Idrija   10/1/2023 - 9/30/2025  PhD Jože Kotnik   4,401 
6. J6-3141  Subglacial carbonate deposits - a new source for studying the presence of glaciers in a glaciokarstic environment   10/1/2021 - 9/30/2025  PhD Matija Zorn   6,989 
7. J1-2478  Novel proxies of the Holocene climate variability in stalagmites in Slovenia   9/1/2020 - 8/31/2024  PhD Sonja Lojen   5,519 
8. J1-1712  Record of environmental change and human impact in Holocene sediments, Gulf of Trieste   7/1/2019 - 6/30/2023  PhD Matej Dolenec   5,830 
9. V1-1939  Identification of Pb sources in the upper Mežiška valley based on Pb isotope composition   11/1/2019 - 10/31/2021  PhD Tea Zuliani   3,060 
10. J1-9179  Non-traditional isotopes as identifiers of authigenic carbonates   7/1/2018 - 6/30/2021  PhD Sonja Lojen   5,000 
11. J4-8216  Mortaliteta v nižinskih hrastovih sestojih Panonske nižine - posledica zniževanja podtalnice ali klimatskih sprememb? (Slovene)   5/1/2017 - 4/30/2020  PhD Tomislav Levanič   4,267 
12. N1-0054  Spatial distribution of water isotopes in precipitation in Europe with special focus on the transect from the Adriatic Coast to the Pannonian Plain   6/1/2016 - 5/31/2019  PhD Polona Vreča   2,122 
13. J6-4085  Archaeologies of hunter-gatherers, farmers and metallurgists: Cultures, populations, palaeoeconomies and climate   7/1/2011 - 6/30/2014  PhD Mihael Budja   3,139 
14. L4-4318  Dinamika ogljika v gozdnih tleh in rizosferi (Slovene)   7/1/2011 - 6/30/2014  PhD Hojka Kraigher   11,081 
15. L1-0367  An integrated methodology for the remediation of an area impacted by the past mining activity   2/1/2008 - 1/30/2011  PhD Milena Horvat   5,253 
16. L1-0437  Natural hydrochemical background and dynamics of groundwater in Slovenia   2/1/2008 - 1/30/2011  PhD Janko Urbanc   5,234 
17. J1-0745  Physico - chemical processes involved in formation of radioactive nano aerosols   2/1/2008 - 1/30/2011  PhD Janja Vaupotič   2,542 
18. V4-0348  Vpliv klimatskih sprememb na rast in odzivnost dreves na robnih rastiščih v Sloveniji (Slovene)   10/1/2006 - 9/30/2008  PhD Matjaž Čater   3,514 
19. J7-7397  Carbon transport processes and mechanisms in forest ecosystems   9/1/2005 - 8/31/2008  PhD Nives Ogrinc   7,051 
20. J4-7315  The response of soil organic matter and natural ecosystems (primarily forests) to climate change   9/1/2005 - 8/31/2008  PhD Nataša Jaecks Vidic   3,608 
21. J6-6013  Ljubljansko barje - archaeological landscape in flux   7/1/2004 - 6/30/2007  PhD Mihael Budja   3,587 
22. J1-6717  Pathways of carbon, nutrients and pollutants through food-webs in Slovenian mountain lakes   7/1/2004 - 6/30/2007  PhD Anton Brancelj   5,722 
23. J1-6509  Biogeochemical cycling of carbon and nitrogen in eutrophic lakes   2/1/2004 - 1/30/2007  PhD Polona Vreča   1,991 
24. L2-6458  Development of tools for management and analysis of the loads and influences on waters in the Sava and Soča catchments   2/1/2004 - 1/30/2007  PhD Matjaž Mikoš   11,329 
25. V4-0114  Določevanje izvora sladkorjev vin s kombinacijo SNIF-NMR, IRMS in kemometričnimi metodami - nadaljevanje projekta iz leta 2001 'Konkurenčnost Slovenije 2001-2006' (Slovene)   9/1/2004 - 11/30/2006  PhD Mitja Kocjančič   4,068 
26. J1-5314  Izvori in kroženje organske snovi v obalnem morju (Tržaški zaliv) (Slovene)   1/1/2003 - 12/31/2005  PhD Jadran Faganeli   3,949 
27. Z1-3342  Biogeochemical cycling of carbon, nitrogen and sulphur in eutrophic lakes   7/1/2001 - 6/30/2004  PhD Polona Vreča   919 
28. Z2-3530  Developments of basic Concepts of Traceability and Measurement Uncertainty in Metrology in Chemistry   7/1/2001 - 6/30/2004  PhD Andreja Drolc   2,662 
29. Z2-3502  Modelling of mercury and its compounds transport and transformations in heavy polluted land and river environment: Idrija mercury mine influence area   7/1/2001 - 6/30/2004  PhD Jože Kotnik   5,750 
30. V4-0479  Določevanje izvora sladkorjev vin s kombinacijo SNIF-NMR, IRMS in kemometričnimi metodami (Slovene)   11/1/2001 - 10/31/2003  PhD Mitja Kocjančič   5,743 
31. J1-0695  Geokemija supergenih procesov v Sloveniji (Slovene)   7/1/1998 - 6/30/2001  PhD Simon Pirc   6,616 
32. J1-7414  Slovenska alpska jezera: paleoekologija in ekologija (slo-al: pe) - procesi eutrofizacije v visokogorskih jezerih (Slovene)   1/1/1996 - 6/30/2001  PhD Anton Brancelj   7,897 
ARIS research and infrastructure programmes Legend
source: ARIS
no. Code Title Period Head
1. P1-0143  Cycling of substances in the environment, mass balances, modelling of environmental processes and risk assessment   1/1/2020 - 12/31/2027 PhD Milena Horvat   11,469 
2. P1-0143  Cycling of substances in the environment, mass balances, modelling of environmental processes and risk assessment   1/1/2015 - 12/31/2019 PhD Milena Horvat   10,949 
3. P1-0143  Cycling of substances in the environment, mass balances, modelling of environmental processes and risk assessment   1/1/2009 - 12/31/2014 PhD Milena Horvat   11,111 
4. P1-0143  Cycling of substances in the environment, mass balances, modelling of environmental processes and risk assessment   1/1/2004 - 12/31/2008 PhD Milena Horvat   11,089 
5. P0-0531-0106  Biological and geochemical cycles   1/1/1999 - 12/31/2003 PhD Milena Horvat   5,019 
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