TY  - JOUR
AU  - Vesković, Jelena
AU  - Deršek-Timotić, Ivana
AU  - Lučić, Milica
AU  - Miletić, Andrijana
AU  - Đolić, Maja
AU  - Ražić, Slavica
AU  - Onjia, Antonije
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7407
AB  - Population growth, urbanization, industry, floods, and agriculture globally degrade groundwater in river plains, necessitating action for its quality assessment and management. Hence, a comprehensive methodology, including hydrogeochemical facies (Piper, Gibbs), irrigation indices (SAR, Wilcox), entropy-weighted water quality index (EWQI), positive matrix factorization (PMF), and Monte Carlo simulation of source-specific health risks was used in this study to analyze groundwater in the Morava river plain (Serbia). The results revealed a prevalent Ca–Mg–HCO3 groundwater type, influenced by water–rock interactions. Although groundwater was found suitable for irrigation, only 66.7 % of the samples were considered drinkable. Agricultural activities, natural processes, and municipal wastewater were identified as primary pollution sources. The incremental lifetime cancer risk (ILCR) and hazard index (HI) threshold exceedance for adults and children ranged from 8.5 % to 39 % of the samples, with arsenic identified as the most risk-contributing contaminant. These findings provide valuable insights for researchers studying groundwater vulnerability in river plains.
PB  - Elsevier Ltd.
T2  - Marine Pollution Bulletin
T1  - Entropy-weighted water quality index, hydrogeochemistry, and Monte Carlo simulation of source-specific health risks of groundwater in the Morava River plain (Serbia)
SP  - 116277
VL  - 201
DO  - 10.1016/j.marpolbul.2024.116277
ER  - 

@article{
author = "Vesković, Jelena and Deršek-Timotić, Ivana and Lučić, Milica and Miletić, Andrijana and Đolić, Maja and Ražić, Slavica and Onjia, Antonije",
year = "2024",
abstract = "Population growth, urbanization, industry, floods, and agriculture globally degrade groundwater in river plains, necessitating action for its quality assessment and management. Hence, a comprehensive methodology, including hydrogeochemical facies (Piper, Gibbs), irrigation indices (SAR, Wilcox), entropy-weighted water quality index (EWQI), positive matrix factorization (PMF), and Monte Carlo simulation of source-specific health risks was used in this study to analyze groundwater in the Morava river plain (Serbia). The results revealed a prevalent Ca–Mg–HCO3 groundwater type, influenced by water–rock interactions. Although groundwater was found suitable for irrigation, only 66.7 % of the samples were considered drinkable. Agricultural activities, natural processes, and municipal wastewater were identified as primary pollution sources. The incremental lifetime cancer risk (ILCR) and hazard index (HI) threshold exceedance for adults and children ranged from 8.5 % to 39 % of the samples, with arsenic identified as the most risk-contributing contaminant. These findings provide valuable insights for researchers studying groundwater vulnerability in river plains.",
publisher = "Elsevier Ltd.",
journal = "Marine Pollution Bulletin",
title = "Entropy-weighted water quality index, hydrogeochemistry, and Monte Carlo simulation of source-specific health risks of groundwater in the Morava River plain (Serbia)",
pages = "116277",
volume = "201",
doi = "10.1016/j.marpolbul.2024.116277"
}

Vesković, J., Deršek-Timotić, I., Lučić, M., Miletić, A., Đolić, M., Ražić, S.,& Onjia, A.. (2024). Entropy-weighted water quality index, hydrogeochemistry, and Monte Carlo simulation of source-specific health risks of groundwater in the Morava River plain (Serbia). in Marine Pollution Bulletin
Elsevier Ltd.., 201, 116277.
https://doi.org/10.1016/j.marpolbul.2024.116277

Vesković J, Deršek-Timotić I, Lučić M, Miletić A, Đolić M, Ražić S, Onjia A. Entropy-weighted water quality index, hydrogeochemistry, and Monte Carlo simulation of source-specific health risks of groundwater in the Morava River plain (Serbia). in Marine Pollution Bulletin. 2024;201:116277.
doi:10.1016/j.marpolbul.2024.116277 .

Vesković, Jelena, Deršek-Timotić, Ivana, Lučić, Milica, Miletić, Andrijana, Đolić, Maja, Ražić, Slavica, Onjia, Antonije, "Entropy-weighted water quality index, hydrogeochemistry, and Monte Carlo simulation of source-specific health risks of groundwater in the Morava River plain (Serbia)" in Marine Pollution Bulletin, 201 (2024):116277,
https://doi.org/10.1016/j.marpolbul.2024.116277 . .

TY  - CONF
AU  - Sentić, Milica
AU  - Trajković, Ivana
AU  - Deršek-Timotić, Ivana
AU  - Cvetković, Slobodan
AU  - Stojanović, Zoran
AU  - Onjia, Antonije
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7142
AB  - Polycyclic aromatic hydrocarbons (PAHs) are among the most toxic compounds known
to man. Several PAHs are proven to be carcinogenic, mutagenic and teratogenic. Due to their wide
distribution in the environment and their toxicity, it is considered important to monitor the levels of
these compounds in foodstuff. PAHs have been detected in many foods including plant-based such
as vegetable oils, cereal grains, herbs, spices, teas and supplements. As the awareness for the
healthy lifestyle has increased globally, the intake of medicinal herbs as tea and spices has also
grown immensely. Therefore, even stronger emphasis must be made to monitor the toxic levels of
PAHs in herbs. The legislations of the maximum concentrations of certain contaminants in food of
the Republic of Serbia included PAHs values in dry herbs only by the end of 2019 (Official Gazette
RS, No. 81/2019) in comparison to European Commission Regulation dating from 2011. Therefore,
herein we focused on analytical method development for PAHs determination in medicinal herbs.
PB  - Belgrade : The Academy of Applied Technical Studies "Belgrade"
C3  - Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023
T1  - POLYCYCLIC AROMATIC HYDROCARBONS IN MEDICINAL HERBS: ANALYTICAL METHOD DEVELOPMENT
EP  - 860
SP  - 856
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7142
ER  - 

@conference{
author = "Sentić, Milica and Trajković, Ivana and Deršek-Timotić, Ivana and Cvetković, Slobodan and Stojanović, Zoran and Onjia, Antonije",
year = "2023",
abstract = "Polycyclic aromatic hydrocarbons (PAHs) are among the most toxic compounds known
to man. Several PAHs are proven to be carcinogenic, mutagenic and teratogenic. Due to their wide
distribution in the environment and their toxicity, it is considered important to monitor the levels of
these compounds in foodstuff. PAHs have been detected in many foods including plant-based such
as vegetable oils, cereal grains, herbs, spices, teas and supplements. As the awareness for the
healthy lifestyle has increased globally, the intake of medicinal herbs as tea and spices has also
grown immensely. Therefore, even stronger emphasis must be made to monitor the toxic levels of
PAHs in herbs. The legislations of the maximum concentrations of certain contaminants in food of
the Republic of Serbia included PAHs values in dry herbs only by the end of 2019 (Official Gazette
RS, No. 81/2019) in comparison to European Commission Regulation dating from 2011. Therefore,
herein we focused on analytical method development for PAHs determination in medicinal herbs.",
publisher = "Belgrade : The Academy of Applied Technical Studies "Belgrade"",
journal = "Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023",
title = "POLYCYCLIC AROMATIC HYDROCARBONS IN MEDICINAL HERBS: ANALYTICAL METHOD DEVELOPMENT",
pages = "860-856",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7142"
}

Sentić, M., Trajković, I., Deršek-Timotić, I., Cvetković, S., Stojanović, Z.,& Onjia, A.. (2023). POLYCYCLIC AROMATIC HYDROCARBONS IN MEDICINAL HERBS: ANALYTICAL METHOD DEVELOPMENT. in Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023
Belgrade : The Academy of Applied Technical Studies "Belgrade"., 856-860.
https://hdl.handle.net/21.15107/rcub_technorep_7142

Sentić M, Trajković I, Deršek-Timotić I, Cvetković S, Stojanović Z, Onjia A. POLYCYCLIC AROMATIC HYDROCARBONS IN MEDICINAL HERBS: ANALYTICAL METHOD DEVELOPMENT. in Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023. 2023;:856-860.
https://hdl.handle.net/21.15107/rcub_technorep_7142 .

Sentić, Milica, Trajković, Ivana, Deršek-Timotić, Ivana, Cvetković, Slobodan, Stojanović, Zoran, Onjia, Antonije, "POLYCYCLIC AROMATIC HYDROCARBONS IN MEDICINAL HERBS: ANALYTICAL METHOD DEVELOPMENT" in Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023 (2023):856-860,
https://hdl.handle.net/21.15107/rcub_technorep_7142 .

TY  - CONF
AU  - Vesković, Jelena
AU  - Lučić, Milica
AU  - Ražić, Slavica
AU  - Deršek-Timotić, Ivana
AU  - Miletić, Andrijana
AU  - Đolić, Maja
AU  - Onjia, Antonije
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7146
AB  - One of the most significant sources of drinking water is groundwater. Therefore, it is
crucial to assess groundwater quality and ascertain potential causes of contamination to address
pollution and provide people with clean drinking water. In this paper, groundwater in the Morava
River plain is investigated and analyzed for 14 physicochemical parameters, such as pH, EC, HCO3
, NO3
-
, PO4
3-
, Cl-
, SO4
2-
, Na+
, K+
, Mg2+, Ca2+, Fe, Mn, and As. To determine groundwater facies and
sources of pollution, three multivariate statistical analysis techniques were applied. Hierarchical
Cluster Analysis (HCA) was used to group groundwater samples based on their similar chemical
characteristics and to determine the dominant hydrochemical groundwater type. According to HCA
results, groundwater samples were clustered into three groups, including Cluster 1 (72.3%), Cluster
2 (19.7%), and Cluster 3 (7.9%), and the main groundwater type was Ca-HCO3 type. Factor Analysis
(FA) incorporated with Pearson correlation analysis was conducted to determine the main sources
of pollution. Water-rock interactions and agricultural practices were identified as primary pollution
sources in the investigated area.
PB  - Belgrade : The Academy of Applied Technical Studies "Belgrade"
C3  - Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023
T1  - Multivariate analysis of the Morava river plain groundwater
EP  - 94
SP  - 89
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7146
ER  - 

@conference{
author = "Vesković, Jelena and Lučić, Milica and Ražić, Slavica and Deršek-Timotić, Ivana and Miletić, Andrijana and Đolić, Maja and Onjia, Antonije",
year = "2023",
abstract = "One of the most significant sources of drinking water is groundwater. Therefore, it is
crucial to assess groundwater quality and ascertain potential causes of contamination to address
pollution and provide people with clean drinking water. In this paper, groundwater in the Morava
River plain is investigated and analyzed for 14 physicochemical parameters, such as pH, EC, HCO3
, NO3
-
, PO4
3-
, Cl-
, SO4
2-
, Na+
, K+
, Mg2+, Ca2+, Fe, Mn, and As. To determine groundwater facies and
sources of pollution, three multivariate statistical analysis techniques were applied. Hierarchical
Cluster Analysis (HCA) was used to group groundwater samples based on their similar chemical
characteristics and to determine the dominant hydrochemical groundwater type. According to HCA
results, groundwater samples were clustered into three groups, including Cluster 1 (72.3%), Cluster
2 (19.7%), and Cluster 3 (7.9%), and the main groundwater type was Ca-HCO3 type. Factor Analysis
(FA) incorporated with Pearson correlation analysis was conducted to determine the main sources
of pollution. Water-rock interactions and agricultural practices were identified as primary pollution
sources in the investigated area.",
publisher = "Belgrade : The Academy of Applied Technical Studies "Belgrade"",
journal = "Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023",
title = "Multivariate analysis of the Morava river plain groundwater",
pages = "94-89",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7146"
}

Vesković, J., Lučić, M., Ražić, S., Deršek-Timotić, I., Miletić, A., Đolić, M.,& Onjia, A.. (2023). Multivariate analysis of the Morava river plain groundwater. in Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023
Belgrade : The Academy of Applied Technical Studies "Belgrade"., 89-94.
https://hdl.handle.net/21.15107/rcub_technorep_7146

Vesković J, Lučić M, Ražić S, Deršek-Timotić I, Miletić A, Đolić M, Onjia A. Multivariate analysis of the Morava river plain groundwater. in Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023. 2023;:89-94.
https://hdl.handle.net/21.15107/rcub_technorep_7146 .

Vesković, Jelena, Lučić, Milica, Ražić, Slavica, Deršek-Timotić, Ivana, Miletić, Andrijana, Đolić, Maja, Onjia, Antonije, "Multivariate analysis of the Morava river plain groundwater" in Conference Proceedings / International Scientific and Professional Conference Politehnika 2023, Belgrade, 15th December 2023 (2023):89-94,
https://hdl.handle.net/21.15107/rcub_technorep_7146 .

TY  - CONF
AU  - Trajković, Ivana
AU  - Sentić, Milica
AU  - Deršek-Timotić, Ivana
AU  - Cvetković, Slobodan
AU  - Stojanović, Zoran
AU  - Onjia, Antonije
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7048
AB  - Polycyclic aromatic hydrocarbons (PAHs) are amongst the most toxic
compounds known to man. Several PAHs are proven to be carcinogenic, mutagenic,
and teratogenic. Due to their wide distribution in the environment and their toxicity,
it is considered important to monitor the levels of these compounds in foodstuffs. PAHs have been detected in many food products including plant-based such as
vegetable oils, cereal grains, herbs, spices, teas, and supplements1,2. As the
awareness of the healthy lifestyle has increased globally, the intake of medicinal
herbs such as teas and spices has also grown immensely. Therefore, an even bigger
emphasis must be made to monitor the toxic levels of PAHs in herbs. The maximum
concentrations of certain contaminants in food in the Republic of Serbia included
PAHs values in dry herbs only by the end of 2019 ("Official Gazette / RS", No.
81/2019)3
. Herein, were investigated the sources of PAHs contamination in dry
herbs collected from the different parts of Serbia, its quantification and the potential
health risk posed by their toxicity.
PB  - Skopje : Society of chemists and technologists of Macedonia
C3  - Book of abstracts / 26th Congress of SCTM with international participation 20–23 September 2023 Metropol Lake Resort Ohrid, R. Macedonia
T1  - Polycyclic Aromatic Hydrocarbons in Dry Herbs: Source Identification, Quantification, and Health Risk Assessment
EP  - 109
SP  - 108
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7048
ER  - 

@conference{
author = "Trajković, Ivana and Sentić, Milica and Deršek-Timotić, Ivana and Cvetković, Slobodan and Stojanović, Zoran and Onjia, Antonije",
year = "2023",
abstract = "Polycyclic aromatic hydrocarbons (PAHs) are amongst the most toxic
compounds known to man. Several PAHs are proven to be carcinogenic, mutagenic,
and teratogenic. Due to their wide distribution in the environment and their toxicity,
it is considered important to monitor the levels of these compounds in foodstuffs. PAHs have been detected in many food products including plant-based such as
vegetable oils, cereal grains, herbs, spices, teas, and supplements1,2. As the
awareness of the healthy lifestyle has increased globally, the intake of medicinal
herbs such as teas and spices has also grown immensely. Therefore, an even bigger
emphasis must be made to monitor the toxic levels of PAHs in herbs. The maximum
concentrations of certain contaminants in food in the Republic of Serbia included
PAHs values in dry herbs only by the end of 2019 ("Official Gazette / RS", No.
81/2019)3
. Herein, were investigated the sources of PAHs contamination in dry
herbs collected from the different parts of Serbia, its quantification and the potential
health risk posed by their toxicity.",
publisher = "Skopje : Society of chemists and technologists of Macedonia",
journal = "Book of abstracts / 26th Congress of SCTM with international participation 20–23 September 2023 Metropol Lake Resort Ohrid, R. Macedonia",
title = "Polycyclic Aromatic Hydrocarbons in Dry Herbs: Source Identification, Quantification, and Health Risk Assessment",
pages = "109-108",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7048"
}

Trajković, I., Sentić, M., Deršek-Timotić, I., Cvetković, S., Stojanović, Z.,& Onjia, A.. (2023). Polycyclic Aromatic Hydrocarbons in Dry Herbs: Source Identification, Quantification, and Health Risk Assessment. in Book of abstracts / 26th Congress of SCTM with international participation 20–23 September 2023 Metropol Lake Resort Ohrid, R. Macedonia
Skopje : Society of chemists and technologists of Macedonia., 108-109.
https://hdl.handle.net/21.15107/rcub_technorep_7048

Trajković I, Sentić M, Deršek-Timotić I, Cvetković S, Stojanović Z, Onjia A. Polycyclic Aromatic Hydrocarbons in Dry Herbs: Source Identification, Quantification, and Health Risk Assessment. in Book of abstracts / 26th Congress of SCTM with international participation 20–23 September 2023 Metropol Lake Resort Ohrid, R. Macedonia. 2023;:108-109.
https://hdl.handle.net/21.15107/rcub_technorep_7048 .

Trajković, Ivana, Sentić, Milica, Deršek-Timotić, Ivana, Cvetković, Slobodan, Stojanović, Zoran, Onjia, Antonije, "Polycyclic Aromatic Hydrocarbons in Dry Herbs: Source Identification, Quantification, and Health Risk Assessment" in Book of abstracts / 26th Congress of SCTM with international participation 20–23 September 2023 Metropol Lake Resort Ohrid, R. Macedonia (2023):108-109,
https://hdl.handle.net/21.15107/rcub_technorep_7048 .

TY  - JOUR
AU  - Čičkarić, Dragana Z.
AU  - Deršek-Timotić, Ivana
AU  - Onjia, Antonije
AU  - Rajaković, Ljubinka V.
PY  - 2005
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/796
AB  - A suppressed ion chromatography (IC) technique, using a carbonate/hydrogen carbonate or a hydroxide eluent, has been evaluated as a monitoring tool for the detection of major anions (F-, Cl-, NO3-, PO43- and SO42-) in ultra pure water and condensed steam from thermal power plants. An electrical conductivity detector with an anion-exchange column (IonPac AS14), an auto self-regenerating suppressor (ASRS), and an isocratic high-pressure pump system were used for the detection of low concentrations of inorganic anions. It was shown that the suppressed IC technique provides a suitable means for preventing possible damage to generating equipment in power plants. The detection limits of the method for the anions of interest were  lt  0.3 μg/L.
AB  - Tehnika supresivne jonske hromatografije (IC) razvijena je za analizu tragova anjona (F-, Cl-, NO3-, PO43- and SO42-) u uzorcima ultra čiste vode. Detektor električne provodljivosti sa kolonom za jonsku izmenu (IonPac AS14) samoregenerišući anjonski supresor (ASRS) i izokratična IC pumpa visokog pritiska uspešno su primenjeni za otkrivanje niskih koncentracija neorganskih anjona. Razvijene su dve IC metode, jedna sa karbonatnim (za analizu NO3 PO43- i SO42- -jona), a druga sa hidroksidnim eluentom (za analizu F- i Cl--jona). Granice detekcije primenjenih metoda bile su:  lt  0,3 μg/L (metoda sa karbonatnim eluntom) i  lt  0,1 μg/L (metoda sa hidroksidnim eluentom). Na ovaj način razvijene su dve IC metode koje se mogu primeniti za kontrolu tragova anjona u sistemu voda-para u termoelektranama.
PB  - Serbian Chemical Society, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Development of ion chromatography methods for the determination of trace anions in ultra pure water from power plants
T1  - Razvoj metoda jonske hromatografije za određivanje tragova anjona u ultra čistim vodama iz termoelektrana
EP  - 1003
IS  - 7
SP  - 995
VL  - 70
UR  - https://hdl.handle.net/21.15107/rcub_technorep_796
ER  - 

@article{
author = "Čičkarić, Dragana Z. and Deršek-Timotić, Ivana and Onjia, Antonije and Rajaković, Ljubinka V.",
year = "2005",
abstract = "A suppressed ion chromatography (IC) technique, using a carbonate/hydrogen carbonate or a hydroxide eluent, has been evaluated as a monitoring tool for the detection of major anions (F-, Cl-, NO3-, PO43- and SO42-) in ultra pure water and condensed steam from thermal power plants. An electrical conductivity detector with an anion-exchange column (IonPac AS14), an auto self-regenerating suppressor (ASRS), and an isocratic high-pressure pump system were used for the detection of low concentrations of inorganic anions. It was shown that the suppressed IC technique provides a suitable means for preventing possible damage to generating equipment in power plants. The detection limits of the method for the anions of interest were  lt  0.3 μg/L., Tehnika supresivne jonske hromatografije (IC) razvijena je za analizu tragova anjona (F-, Cl-, NO3-, PO43- and SO42-) u uzorcima ultra čiste vode. Detektor električne provodljivosti sa kolonom za jonsku izmenu (IonPac AS14) samoregenerišući anjonski supresor (ASRS) i izokratična IC pumpa visokog pritiska uspešno su primenjeni za otkrivanje niskih koncentracija neorganskih anjona. Razvijene su dve IC metode, jedna sa karbonatnim (za analizu NO3 PO43- i SO42- -jona), a druga sa hidroksidnim eluentom (za analizu F- i Cl--jona). Granice detekcije primenjenih metoda bile su:  lt  0,3 μg/L (metoda sa karbonatnim eluntom) i  lt  0,1 μg/L (metoda sa hidroksidnim eluentom). Na ovaj način razvijene su dve IC metode koje se mogu primeniti za kontrolu tragova anjona u sistemu voda-para u termoelektranama.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Development of ion chromatography methods for the determination of trace anions in ultra pure water from power plants, Razvoj metoda jonske hromatografije za određivanje tragova anjona u ultra čistim vodama iz termoelektrana",
pages = "1003-995",
number = "7",
volume = "70",
url = "https://hdl.handle.net/21.15107/rcub_technorep_796"
}

Čičkarić, D. Z., Deršek-Timotić, I., Onjia, A.,& Rajaković, L. V.. (2005). Development of ion chromatography methods for the determination of trace anions in ultra pure water from power plants. in Journal of the Serbian Chemical Society
Serbian Chemical Society, Belgrade., 70(7), 995-1003.
https://hdl.handle.net/21.15107/rcub_technorep_796

Čičkarić DZ, Deršek-Timotić I, Onjia A, Rajaković LV. Development of ion chromatography methods for the determination of trace anions in ultra pure water from power plants. in Journal of the Serbian Chemical Society. 2005;70(7):995-1003.
https://hdl.handle.net/21.15107/rcub_technorep_796 .

Čičkarić, Dragana Z., Deršek-Timotić, Ivana, Onjia, Antonije, Rajaković, Ljubinka V., "Development of ion chromatography methods for the determination of trace anions in ultra pure water from power plants" in Journal of the Serbian Chemical Society, 70, no. 7 (2005):995-1003,
https://hdl.handle.net/21.15107/rcub_technorep_796 .