TY  - JOUR
AU  - Marić, Nenad
AU  - Strbacki, Jana
AU  - Polk, Jason
AU  - Slavković-Beskoski, Latinka
AU  - Avdalović, Jelena
AU  - Ljesević, Marija
AU  - Joksimović, Kristina
AU  - Zeradanin, Aleksandra
AU  - Beskoski, Vladimir P.
PY  - 2022
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1340
AB  - The characterization and cleanup of groundwater contamination in hazardous-waste sites are of significant engineering and scientific importance. This study analyzes biodegradation fingerprints in groundwater, 25 years after the accidental leakage of kerosene (jet fuel) at the site in central Serbia. The long-term existence of hydrocarbon contamination and the presence of indigenous microbiological populations capable of biodegradation have been confirmed by the results of GCxGC-MS chromatography and microbiological characterization. Total petroleum hydrocarbons (TPH), geochemical indicators, and other parameters were spatially analyzed to provide insight into biodegradation occurrence. The lowest concentrations of electron acceptors (O-2, NO3-, and SO42-) and the highest concentrations of microbial metabolic products (Mn and Fe) overlap in the piezometers closest to the source of contamination, due to the occurrence of different biodegradation mechanisms. Based on the analysis of redox-sensitive compounds, the mixed oxic-anoxic processes in groundwater also correspond to the aforementioned zone, as confirmed by the redox potential (Eh) measurements. The results of cross-study analysis reveal further reduction of hydrocarbon contamination, the occurrence of less anoxic redox processes, and the increase of oxic conditions in groundwater. Overall, the results provide clear evidence of the biodegradation effects in groundwater and insight into their evolution under natural attenuation processes.
T2  - Chemistry and Ecology
T1  - Spatial-temporal assessment of hydrocarbon biodegradation mechanisms at a contaminated groundwater site in Serbia
EP  - 107
IS  - 2
SP  - 95
VL  - 38
DO  - 10.1080/02757540.2021.2017903
UR  - conv_1606
ER  - 

@article{
author = "Marić, Nenad and Strbacki, Jana and Polk, Jason and Slavković-Beskoski, Latinka and Avdalović, Jelena and Ljesević, Marija and Joksimović, Kristina and Zeradanin, Aleksandra and Beskoski, Vladimir P.",
year = "2022",
abstract = "The characterization and cleanup of groundwater contamination in hazardous-waste sites are of significant engineering and scientific importance. This study analyzes biodegradation fingerprints in groundwater, 25 years after the accidental leakage of kerosene (jet fuel) at the site in central Serbia. The long-term existence of hydrocarbon contamination and the presence of indigenous microbiological populations capable of biodegradation have been confirmed by the results of GCxGC-MS chromatography and microbiological characterization. Total petroleum hydrocarbons (TPH), geochemical indicators, and other parameters were spatially analyzed to provide insight into biodegradation occurrence. The lowest concentrations of electron acceptors (O-2, NO3-, and SO42-) and the highest concentrations of microbial metabolic products (Mn and Fe) overlap in the piezometers closest to the source of contamination, due to the occurrence of different biodegradation mechanisms. Based on the analysis of redox-sensitive compounds, the mixed oxic-anoxic processes in groundwater also correspond to the aforementioned zone, as confirmed by the redox potential (Eh) measurements. The results of cross-study analysis reveal further reduction of hydrocarbon contamination, the occurrence of less anoxic redox processes, and the increase of oxic conditions in groundwater. Overall, the results provide clear evidence of the biodegradation effects in groundwater and insight into their evolution under natural attenuation processes.",
journal = "Chemistry and Ecology",
title = "Spatial-temporal assessment of hydrocarbon biodegradation mechanisms at a contaminated groundwater site in Serbia",
pages = "107-95",
number = "2",
volume = "38",
doi = "10.1080/02757540.2021.2017903",
url = "conv_1606"
}

Marić, N., Strbacki, J., Polk, J., Slavković-Beskoski, L., Avdalović, J., Ljesević, M., Joksimović, K., Zeradanin, A.,& Beskoski, V. P.. (2022). Spatial-temporal assessment of hydrocarbon biodegradation mechanisms at a contaminated groundwater site in Serbia. in Chemistry and Ecology, 38(2), 95-107.
https://doi.org/10.1080/02757540.2021.2017903
conv_1606

Marić N, Strbacki J, Polk J, Slavković-Beskoski L, Avdalović J, Ljesević M, Joksimović K, Zeradanin A, Beskoski VP. Spatial-temporal assessment of hydrocarbon biodegradation mechanisms at a contaminated groundwater site in Serbia. in Chemistry and Ecology. 2022;38(2):95-107.
doi:10.1080/02757540.2021.2017903
conv_1606 .

Marić, Nenad, Strbacki, Jana, Polk, Jason, Slavković-Beskoski, Latinka, Avdalović, Jelena, Ljesević, Marija, Joksimović, Kristina, Zeradanin, Aleksandra, Beskoski, Vladimir P., "Spatial-temporal assessment of hydrocarbon biodegradation mechanisms at a contaminated groundwater site in Serbia" in Chemistry and Ecology, 38, no. 2 (2022):95-107,
https://doi.org/10.1080/02757540.2021.2017903 .,
conv_1606 .

TY  - JOUR
AU  - Marić, Nenad
AU  - Strbacki, Jana
AU  - Mrazovac Kurilić, Sanja
AU  - Beskoski, Vladimir P.
AU  - Nikić, Zoran
AU  - Ignjatović, Snežana
AU  - Malbasić, Jovana
PY  - 2020
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1123
AB  - Aquifer contamination by petroleum hydrocarbons leads to measurable changes of groundwater hydrochemistry, primarily due to the microbiological activity. This study analyzes this phenomenon at an historical kerosene-contaminated site in Vitanovac (central Serbia). Due to the long-term hydrocarbon contamination and exposure to aerobic and anaerobic biodegradation mechanisms, the lowest concentrations of O-2, NO3-, and SO42- (electron acceptors) and the highest concentrations of Mn and Fe (products of microbial metabolic activity) overlap. The terminal redox-accepting processes in groundwater ranged from oxygen reduction to sulfate reduction. The most anoxic processes were registered in piezometers closest to the source of contamination, as was also confirmed by the redox potential (Eh) measurements. High electrical conductivity values and the highest TOC, SiO2, and Al concentrations also overlap in the contaminated zone close to the source of contamination. Scanning electron microscopy study of quartz grains from the zone undergoing the impact of biodegradation confirmed the occurrence of weathering microscale processes on mineral surfaces. Taking all these factors together, it seems reasonable to assume that microbiological activity has caused the enhanced weathering of silicate minerals.
T2  - Environmental Geochemistry and Health
T1  - Hydrochemistry of groundwater contaminated by petroleum hydrocarbons: the impact of biodegradation (Vitanovac, Serbia)
EP  - 1935
IS  - 7
SP  - 1921
VL  - 42
DO  - 10.1007/s10653-019-00462-9
UR  - conv_1461
ER  - 

@article{
author = "Marić, Nenad and Strbacki, Jana and Mrazovac Kurilić, Sanja and Beskoski, Vladimir P. and Nikić, Zoran and Ignjatović, Snežana and Malbasić, Jovana",
year = "2020",
abstract = "Aquifer contamination by petroleum hydrocarbons leads to measurable changes of groundwater hydrochemistry, primarily due to the microbiological activity. This study analyzes this phenomenon at an historical kerosene-contaminated site in Vitanovac (central Serbia). Due to the long-term hydrocarbon contamination and exposure to aerobic and anaerobic biodegradation mechanisms, the lowest concentrations of O-2, NO3-, and SO42- (electron acceptors) and the highest concentrations of Mn and Fe (products of microbial metabolic activity) overlap. The terminal redox-accepting processes in groundwater ranged from oxygen reduction to sulfate reduction. The most anoxic processes were registered in piezometers closest to the source of contamination, as was also confirmed by the redox potential (Eh) measurements. High electrical conductivity values and the highest TOC, SiO2, and Al concentrations also overlap in the contaminated zone close to the source of contamination. Scanning electron microscopy study of quartz grains from the zone undergoing the impact of biodegradation confirmed the occurrence of weathering microscale processes on mineral surfaces. Taking all these factors together, it seems reasonable to assume that microbiological activity has caused the enhanced weathering of silicate minerals.",
journal = "Environmental Geochemistry and Health",
title = "Hydrochemistry of groundwater contaminated by petroleum hydrocarbons: the impact of biodegradation (Vitanovac, Serbia)",
pages = "1935-1921",
number = "7",
volume = "42",
doi = "10.1007/s10653-019-00462-9",
url = "conv_1461"
}

Marić, N., Strbacki, J., Mrazovac Kurilić, S., Beskoski, V. P., Nikić, Z., Ignjatović, S.,& Malbasić, J.. (2020). Hydrochemistry of groundwater contaminated by petroleum hydrocarbons: the impact of biodegradation (Vitanovac, Serbia). in Environmental Geochemistry and Health, 42(7), 1921-1935.
https://doi.org/10.1007/s10653-019-00462-9
conv_1461

Marić N, Strbacki J, Mrazovac Kurilić S, Beskoski VP, Nikić Z, Ignjatović S, Malbasić J. Hydrochemistry of groundwater contaminated by petroleum hydrocarbons: the impact of biodegradation (Vitanovac, Serbia). in Environmental Geochemistry and Health. 2020;42(7):1921-1935.
doi:10.1007/s10653-019-00462-9
conv_1461 .

Marić, Nenad, Strbacki, Jana, Mrazovac Kurilić, Sanja, Beskoski, Vladimir P., Nikić, Zoran, Ignjatović, Snežana, Malbasić, Jovana, "Hydrochemistry of groundwater contaminated by petroleum hydrocarbons: the impact of biodegradation (Vitanovac, Serbia)" in Environmental Geochemistry and Health, 42, no. 7 (2020):1921-1935,
https://doi.org/10.1007/s10653-019-00462-9 .,
conv_1461 .