Lazović, Ivan

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orcid::0000-0002-3877-5157
  • Lazović, Ivan (9)
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Author's Bibliography

Modelling voluntary general population vaccination strategies during covid-19 outbreak: Influence of disease prevalence

Jovanović, Rastko; Davidović, Miloš; Lazović, Ivan; Jovanović, Maja; Jovašević-Stojanović, Milena

(2021)

TY  - JOUR
AU  - Jovanović, Rastko
AU  - Davidović, Miloš
AU  - Lazović, Ivan
AU  - Jovanović, Maja
AU  - Jovašević-Stojanović, Milena
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9830
AB  - A novel statistical model based on a two-layer, contact and information, graph is suggested in order to study the influence of disease prevalence on voluntary general population vaccination during the COVID-19 outbreak. Details about the structure and number of susceptible, infectious, and recovered/vaccinated individuals from the contact layer are simultaneously transferred to the information layer. The ever-growing wealth of information that is becoming available about the COVID virus was modelled at each individual level by a simplified proxy predictor of the amount of disease spread. Each informed individual, a node in a heterogeneous graph, makes a decision about vaccination “motivated” by their benefit. The obtained results showed that disease information type, global or local, has a significant impact on an individual vaccination decision. A number of different scenarios were investigated. The scenarios showed that in the case of the stronger impact of globally broadcasted disease information, individuals tend to vaccinate in larger numbers at the same time when the infection has already spread within the population. If individuals make vaccination decisions based on locally available information, the vaccination rate is uniformly spread during infection outbreak duration. Prioritising elderly population vaccination leads to an increased number of infected cases and a higher reduction in mortality. The developed model accuracy allows the precise targeting of vaccination order depending on the individuals’ number of social contacts. Precisely targeted vaccination, combined with pre-existing immunity, and public health measures can limit the infection to isolated hotspots inside the population, as well as significantly delay and lower the infection peak.
T2  - International Journal of Environmental Research and Public Health
T2  - International Journal of Environmental Research and Public Health
T1  - Modelling voluntary general population vaccination strategies during covid-19 outbreak: Influence of disease prevalence
VL  - 18
IS  - 12
SP  - 6217
DO  - 10.3390/ijerph18126217
ER  - 
@article{
author = "Jovanović, Rastko and Davidović, Miloš and Lazović, Ivan and Jovanović, Maja and Jovašević-Stojanović, Milena",
year = "2021",
abstract = "A novel statistical model based on a two-layer, contact and information, graph is suggested in order to study the influence of disease prevalence on voluntary general population vaccination during the COVID-19 outbreak. Details about the structure and number of susceptible, infectious, and recovered/vaccinated individuals from the contact layer are simultaneously transferred to the information layer. The ever-growing wealth of information that is becoming available about the COVID virus was modelled at each individual level by a simplified proxy predictor of the amount of disease spread. Each informed individual, a node in a heterogeneous graph, makes a decision about vaccination “motivated” by their benefit. The obtained results showed that disease information type, global or local, has a significant impact on an individual vaccination decision. A number of different scenarios were investigated. The scenarios showed that in the case of the stronger impact of globally broadcasted disease information, individuals tend to vaccinate in larger numbers at the same time when the infection has already spread within the population. If individuals make vaccination decisions based on locally available information, the vaccination rate is uniformly spread during infection outbreak duration. Prioritising elderly population vaccination leads to an increased number of infected cases and a higher reduction in mortality. The developed model accuracy allows the precise targeting of vaccination order depending on the individuals’ number of social contacts. Precisely targeted vaccination, combined with pre-existing immunity, and public health measures can limit the infection to isolated hotspots inside the population, as well as significantly delay and lower the infection peak.",
journal = "International Journal of Environmental Research and Public Health, International Journal of Environmental Research and Public Health",
title = "Modelling voluntary general population vaccination strategies during covid-19 outbreak: Influence of disease prevalence",
volume = "18",
number = "12",
pages = "6217",
doi = "10.3390/ijerph18126217"
}
Jovanović, R., Davidović, M., Lazović, I., Jovanović, M.,& Jovašević-Stojanović, M.. (2021). Modelling voluntary general population vaccination strategies during covid-19 outbreak: Influence of disease prevalence. in International Journal of Environmental Research and Public Health, 18(12), 6217.
https://doi.org/10.3390/ijerph18126217
Jovanović R, Davidović M, Lazović I, Jovanović M, Jovašević-Stojanović M. Modelling voluntary general population vaccination strategies during covid-19 outbreak: Influence of disease prevalence. in International Journal of Environmental Research and Public Health. 2021;18(12):6217.
doi:10.3390/ijerph18126217 .
Jovanović, Rastko, Davidović, Miloš, Lazović, Ivan, Jovanović, Maja, Jovašević-Stojanović, Milena, "Modelling voluntary general population vaccination strategies during covid-19 outbreak: Influence of disease prevalence" in International Journal of Environmental Research and Public Health, 18, no. 12 (2021):6217,
https://doi.org/10.3390/ijerph18126217 . .

Mathematical modelling of swirl oxy-fuel burner flame characteristics

Jovanović, Rastko D.; Swiatkowski, Bartosz; Kakietek, Slawomir; Škobalj, Predrag D.; Lazović, Ivan; Cvetinović, Dejan

(2019)

TY  - JOUR
AU  - Jovanović, Rastko D.
AU  - Swiatkowski, Bartosz
AU  - Kakietek, Slawomir
AU  - Škobalj, Predrag D.
AU  - Lazović, Ivan
AU  - Cvetinović, Dejan
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S019689041930439X
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8149
AB  - Oxy-fuel combustion is the most promising carbon capture and storage technology, which eliminates carbon dioxide emissions into the atmosphere and also decreases nitrogen oxides emissions thereby lowering global warming potential. In order to implement oxy-fuel combustion technology in full scale power plants, its costs, mainly connected with the amount of pure oxygen produced, must be lowered. The main hypothesis is that it is possible to maintain similar velocity and heat transfer distribution while maintaining stable and efficient burner operation during both combustion technologies modifying burner aerodynamics. Excess oxygen is chosen as a representative parameter of burner's performance and investigation is carried out for four different oxy-fuel burner oxygen excess ratios (λ: 0.8, 0.98, 1.07, and 1.24) together with reference air combustion case. This study suggests a workflow, based on semi-industrial experimental investigations and computational fluid dynamics model composed of advanced sub-models for different combustion phases for development of real scale dual-mode coal swirl burners able for efficient operation during both combustion regimes. The results show that the temperature in near-burner zone and nitrogen oxides emissions increase, while carbon monoxide emissions decrease with the increase of burner oxygen excess ratio, and stable combustion with similar velocity and temperature distributions for both combustion modes is achieved for oxygen excess ratio of 1.07, with decrease in nitrogen oxides and carbon monoxide emissions during oxy-fuel combustion. The performed study demonstrates that it is possible to choose the appropriate burner settings regarding nitrogen oxides and carbon monoxide emissions and burner's ability to operate stably in both air and oxy-fuel combustion modes. © 2019 Elsevier Ltd
T2  - Energy Conversion and Management
T1  - Mathematical modelling of swirl oxy-fuel burner flame characteristics
VL  - 191
SP  - 193
EP  - 207
DO  - 10.1016/j.enconman.2019.04.027
ER  - 
@article{
author = "Jovanović, Rastko D. and Swiatkowski, Bartosz and Kakietek, Slawomir and Škobalj, Predrag D. and Lazović, Ivan and Cvetinović, Dejan",
year = "2019",
abstract = "Oxy-fuel combustion is the most promising carbon capture and storage technology, which eliminates carbon dioxide emissions into the atmosphere and also decreases nitrogen oxides emissions thereby lowering global warming potential. In order to implement oxy-fuel combustion technology in full scale power plants, its costs, mainly connected with the amount of pure oxygen produced, must be lowered. The main hypothesis is that it is possible to maintain similar velocity and heat transfer distribution while maintaining stable and efficient burner operation during both combustion technologies modifying burner aerodynamics. Excess oxygen is chosen as a representative parameter of burner's performance and investigation is carried out for four different oxy-fuel burner oxygen excess ratios (λ: 0.8, 0.98, 1.07, and 1.24) together with reference air combustion case. This study suggests a workflow, based on semi-industrial experimental investigations and computational fluid dynamics model composed of advanced sub-models for different combustion phases for development of real scale dual-mode coal swirl burners able for efficient operation during both combustion regimes. The results show that the temperature in near-burner zone and nitrogen oxides emissions increase, while carbon monoxide emissions decrease with the increase of burner oxygen excess ratio, and stable combustion with similar velocity and temperature distributions for both combustion modes is achieved for oxygen excess ratio of 1.07, with decrease in nitrogen oxides and carbon monoxide emissions during oxy-fuel combustion. The performed study demonstrates that it is possible to choose the appropriate burner settings regarding nitrogen oxides and carbon monoxide emissions and burner's ability to operate stably in both air and oxy-fuel combustion modes. © 2019 Elsevier Ltd",
journal = "Energy Conversion and Management",
title = "Mathematical modelling of swirl oxy-fuel burner flame characteristics",
volume = "191",
pages = "193-207",
doi = "10.1016/j.enconman.2019.04.027"
}
Jovanović, R. D., Swiatkowski, B., Kakietek, S., Škobalj, P. D., Lazović, I.,& Cvetinović, D.. (2019). Mathematical modelling of swirl oxy-fuel burner flame characteristics. in Energy Conversion and Management, 191, 193-207.
https://doi.org/10.1016/j.enconman.2019.04.027
Jovanović RD, Swiatkowski B, Kakietek S, Škobalj PD, Lazović I, Cvetinović D. Mathematical modelling of swirl oxy-fuel burner flame characteristics. in Energy Conversion and Management. 2019;191:193-207.
doi:10.1016/j.enconman.2019.04.027 .
Jovanović, Rastko D., Swiatkowski, Bartosz, Kakietek, Slawomir, Škobalj, Predrag D., Lazović, Ivan, Cvetinović, Dejan, "Mathematical modelling of swirl oxy-fuel burner flame characteristics" in Energy Conversion and Management, 191 (2019):193-207,
https://doi.org/10.1016/j.enconman.2019.04.027 . .
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Results of the modernization of the electrostatic precipitator at unit B1 of the Thermal Power Plant Kostolac B

Erić, Milić; Stefanović, Predrag Lj.; Marković, Zoran J.; Jovanović, Rastko D.; Lazović, Ivan; Živković, Nikola V.; Ilić, Željko

(2018)

TY  - JOUR
AU  - Erić, Milić
AU  - Stefanović, Predrag Lj.
AU  - Marković, Zoran J.
AU  - Jovanović, Rastko D.
AU  - Lazović, Ivan
AU  - Živković, Nikola V.
AU  - Ilić, Željko
PY  - 2018
UR  - http://www.doiserbia.nb.rs/Article.aspx?ID=0354-983618623E
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8030
AB  - The electrostatic precipitator system of the lignite fired 350 MWe unit B1 of Thermal Power Plant Kostolac B has been modernized during 2014. The results of complex in site measurements, performed in the frame of performance control test at the beginning of the exploitation period of the upgraded electrostatic pre-cipitator proved that, under normal and guarantee working conditions of the boiler and precipitator, the emission of particulate matter do not exceed limiting value. After the period of precipitator further adjustments, five series of meas-urements in the frame of acceptance test were performed in accordance with rel-evant standards. This paper presents results of the investigation of particulate matter concentration, laboratory analysis of the lignite, fly and bottom ash sam-ples, working parameters of the unit and upgraded electrostatic precipitator as well as results of the calculations. The averaged mean particulate concentration at the exit of upgraded electrostatic precipitator of the unit B1 during Acceptance test was below guaranteed value. It is confirmed that adjustments of electrostatic precipitator electrical parameters have improved electrostatic precipitator effi-ciency, as well that electrostatic precipitatorcould work highly efficiently in en-ergy save mode with lower power consumption. © 2018 Society of Thermal Engineers of Serbia.
T2  - Thermal Science
T1  - Results of the modernization of the electrostatic precipitator at unit B1 of the Thermal Power Plant Kostolac B
VL  - 22
IS  - Suppl. 5
SP  - 1623
EP  - 1634
DO  - 10.2298/TSCI18S5623E
ER  - 
@article{
author = "Erić, Milić and Stefanović, Predrag Lj. and Marković, Zoran J. and Jovanović, Rastko D. and Lazović, Ivan and Živković, Nikola V. and Ilić, Željko",
year = "2018",
abstract = "The electrostatic precipitator system of the lignite fired 350 MWe unit B1 of Thermal Power Plant Kostolac B has been modernized during 2014. The results of complex in site measurements, performed in the frame of performance control test at the beginning of the exploitation period of the upgraded electrostatic pre-cipitator proved that, under normal and guarantee working conditions of the boiler and precipitator, the emission of particulate matter do not exceed limiting value. After the period of precipitator further adjustments, five series of meas-urements in the frame of acceptance test were performed in accordance with rel-evant standards. This paper presents results of the investigation of particulate matter concentration, laboratory analysis of the lignite, fly and bottom ash sam-ples, working parameters of the unit and upgraded electrostatic precipitator as well as results of the calculations. The averaged mean particulate concentration at the exit of upgraded electrostatic precipitator of the unit B1 during Acceptance test was below guaranteed value. It is confirmed that adjustments of electrostatic precipitator electrical parameters have improved electrostatic precipitator effi-ciency, as well that electrostatic precipitatorcould work highly efficiently in en-ergy save mode with lower power consumption. © 2018 Society of Thermal Engineers of Serbia.",
journal = "Thermal Science",
title = "Results of the modernization of the electrostatic precipitator at unit B1 of the Thermal Power Plant Kostolac B",
volume = "22",
number = "Suppl. 5",
pages = "1623-1634",
doi = "10.2298/TSCI18S5623E"
}
Erić, M., Stefanović, P. Lj., Marković, Z. J., Jovanović, R. D., Lazović, I., Živković, N. V.,& Ilić, Ž.. (2018). Results of the modernization of the electrostatic precipitator at unit B1 of the Thermal Power Plant Kostolac B. in Thermal Science, 22(Suppl. 5), 1623-1634.
https://doi.org/10.2298/TSCI18S5623E
Erić M, Stefanović PL, Marković ZJ, Jovanović RD, Lazović I, Živković NV, Ilić Ž. Results of the modernization of the electrostatic precipitator at unit B1 of the Thermal Power Plant Kostolac B. in Thermal Science. 2018;22(Suppl. 5):1623-1634.
doi:10.2298/TSCI18S5623E .
Erić, Milić, Stefanović, Predrag Lj., Marković, Zoran J., Jovanović, Rastko D., Lazović, Ivan, Živković, Nikola V., Ilić, Željko, "Results of the modernization of the electrostatic precipitator at unit B1 of the Thermal Power Plant Kostolac B" in Thermal Science, 22, no. Suppl. 5 (2018):1623-1634,
https://doi.org/10.2298/TSCI18S5623E . .
1
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3

Assessing the sustainability of Serbian school buildings by ASPID method

Jovanović, Marina P.; Vučićević, Biljana S.; Turanjanin, Valentina; Lazović, Ivan; Živković, Marija M.

(2018)

TY  - JOUR
AU  - Jovanović, Marina P.
AU  - Vučićević, Biljana S.
AU  - Turanjanin, Valentina
AU  - Lazović, Ivan
AU  - Živković, Marija M.
PY  - 2018
UR  - http://www.doiserbia.nb.rs/Article.aspx?ID=0354-98361800131J
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7973
AB  - Sustainable development indicators mainly provide information that can link the observed energy system with sustainable development. This paper considers building energy indicators in order to provide monitoring and measurement of energy performance of buildings. The results of measurement which are considered were obtained in school buildings in Serbia. The aim of this paper is to select, define, and calculate energy indicators as criteria for evaluating the quality of public buildings, with regard to sustainable development. The criteria for assessing sustainability are quantified by certain defined sets of economic, social and environmental indicators. The ASPID method of multi-criteria analysis is also described and mathematically presented. This method is based on the synthesis technique of fuzzy sets and the sustainability of the school buildings was based on their assessment as complex energy systems. © 2018 Serbian Society of Heat Transfer Engineers.
T2  - Thermal Science
T1  - Assessing the sustainability of Serbian school buildings by ASPID method
VL  - 22
IS  - Supl. 4
SP  - 1271
EP  - 1283
DO  - 10.2298/TSCI170529131J
ER  - 
@article{
author = "Jovanović, Marina P. and Vučićević, Biljana S. and Turanjanin, Valentina and Lazović, Ivan and Živković, Marija M.",
year = "2018",
abstract = "Sustainable development indicators mainly provide information that can link the observed energy system with sustainable development. This paper considers building energy indicators in order to provide monitoring and measurement of energy performance of buildings. The results of measurement which are considered were obtained in school buildings in Serbia. The aim of this paper is to select, define, and calculate energy indicators as criteria for evaluating the quality of public buildings, with regard to sustainable development. The criteria for assessing sustainability are quantified by certain defined sets of economic, social and environmental indicators. The ASPID method of multi-criteria analysis is also described and mathematically presented. This method is based on the synthesis technique of fuzzy sets and the sustainability of the school buildings was based on their assessment as complex energy systems. © 2018 Serbian Society of Heat Transfer Engineers.",
journal = "Thermal Science",
title = "Assessing the sustainability of Serbian school buildings by ASPID method",
volume = "22",
number = "Supl. 4",
pages = "1271-1283",
doi = "10.2298/TSCI170529131J"
}
Jovanović, M. P., Vučićević, B. S., Turanjanin, V., Lazović, I.,& Živković, M. M.. (2018). Assessing the sustainability of Serbian school buildings by ASPID method. in Thermal Science, 22(Supl. 4), 1271-1283.
https://doi.org/10.2298/TSCI170529131J
Jovanović MP, Vučićević BS, Turanjanin V, Lazović I, Živković MM. Assessing the sustainability of Serbian school buildings by ASPID method. in Thermal Science. 2018;22(Supl. 4):1271-1283.
doi:10.2298/TSCI170529131J .
Jovanović, Marina P., Vučićević, Biljana S., Turanjanin, Valentina, Lazović, Ivan, Živković, Marija M., "Assessing the sustainability of Serbian school buildings by ASPID method" in Thermal Science, 22, no. Supl. 4 (2018):1271-1283,
https://doi.org/10.2298/TSCI170529131J . .
3
3
3

Impact of Co2 Concentration on Indoor Air Quality and Correlation with Relative Humidity and Indoor Air Temperature in School Buildings in Serbia

Lazović, Ivan; Stevanović, Žarko M.; Jovašević-Stojanović, Milena; Živković, Marija M.; Banjac, Miloš J.

(2016)

TY  - JOUR
AU  - Lazović, Ivan
AU  - Stevanović, Žarko M.
AU  - Jovašević-Stojanović, Milena
AU  - Živković, Marija M.
AU  - Banjac, Miloš J.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1152
AB  - Previous studies have shown that poorly ventilated classrooms can have negative impact on the health of children and school staff. In most cases, schools in Serbia are ventilated naturally. Considering their high occupancy, classroom air quality test determines the level of air pollution, after which it is possible to implement corrective measures. The research presented in this study, was conducted in four schools which are located in different areas and have different architecture designs. Measurements in these schools have been performed during the winter (heating season) and spring (non-heating season) and the following results were presented: indoor air temperature, relative humidity, and carbon dioxide concentration. These results show that the classroom average concentration of carbon dioxide often exceeds the value of 1500 ppm, during its full occupancy, which indicates inadequate ventilation. Measurement campaigns show that carbon dioxide concentration increased significantly from non-heating to heating season in three of the four schools. Analysis of measurements also determined high correlation between relative humidity and carbon dioxide concentration in all schools in winter season. This fact may constitute a solid basis for the fresh air supply strategy.
T2  - Thermal Science
T1  - Impact of Co2 Concentration on Indoor Air Quality and Correlation with Relative Humidity and Indoor Air Temperature in School Buildings in Serbia
VL  - 20
SP  - S297
EP  - S307
DO  - 10.2298/TSCI150831173L
ER  - 
@article{
author = "Lazović, Ivan and Stevanović, Žarko M. and Jovašević-Stojanović, Milena and Živković, Marija M. and Banjac, Miloš J.",
year = "2016",
abstract = "Previous studies have shown that poorly ventilated classrooms can have negative impact on the health of children and school staff. In most cases, schools in Serbia are ventilated naturally. Considering their high occupancy, classroom air quality test determines the level of air pollution, after which it is possible to implement corrective measures. The research presented in this study, was conducted in four schools which are located in different areas and have different architecture designs. Measurements in these schools have been performed during the winter (heating season) and spring (non-heating season) and the following results were presented: indoor air temperature, relative humidity, and carbon dioxide concentration. These results show that the classroom average concentration of carbon dioxide often exceeds the value of 1500 ppm, during its full occupancy, which indicates inadequate ventilation. Measurement campaigns show that carbon dioxide concentration increased significantly from non-heating to heating season in three of the four schools. Analysis of measurements also determined high correlation between relative humidity and carbon dioxide concentration in all schools in winter season. This fact may constitute a solid basis for the fresh air supply strategy.",
journal = "Thermal Science",
title = "Impact of Co2 Concentration on Indoor Air Quality and Correlation with Relative Humidity and Indoor Air Temperature in School Buildings in Serbia",
volume = "20",
pages = "S297-S307",
doi = "10.2298/TSCI150831173L"
}
Lazović, I., Stevanović, Ž. M., Jovašević-Stojanović, M., Živković, M. M.,& Banjac, M. J.. (2016). Impact of Co2 Concentration on Indoor Air Quality and Correlation with Relative Humidity and Indoor Air Temperature in School Buildings in Serbia. in Thermal Science, 20, S297-S307.
https://doi.org/10.2298/TSCI150831173L
Lazović I, Stevanović ŽM, Jovašević-Stojanović M, Živković MM, Banjac MJ. Impact of Co2 Concentration on Indoor Air Quality and Correlation with Relative Humidity and Indoor Air Temperature in School Buildings in Serbia. in Thermal Science. 2016;20:S297-S307.
doi:10.2298/TSCI150831173L .
Lazović, Ivan, Stevanović, Žarko M., Jovašević-Stojanović, Milena, Živković, Marija M., Banjac, Miloš J., "Impact of Co2 Concentration on Indoor Air Quality and Correlation with Relative Humidity and Indoor Air Temperature in School Buildings in Serbia" in Thermal Science, 20 (2016):S297-S307,
https://doi.org/10.2298/TSCI150831173L . .
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Pahs Levels in Gas and Particle-Bound Phase in Schools At Different Locations in Serbia

Živković, Marija M.; Jovašević-Stojanović, Milena; Cvetković, Anka; Lazović, Ivan; Tasic, Visa; Stevanović, Žana; Gržetić, Ivan A.

(2015)

TY  - JOUR
AU  - Živković, Marija M.
AU  - Jovašević-Stojanović, Milena
AU  - Cvetković, Anka
AU  - Lazović, Ivan
AU  - Tasic, Visa
AU  - Stevanović, Žana
AU  - Gržetić, Ivan A.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/549
AB  - This study investigated seasonal variation of PAHs and their partition between gas and particulate-bounded phases in indoor and outdoor air in 4 schools In Serbia located at different locations. The sampling campaigns were conducted during one workweek at each school successively. Campaigns were conducted in schools during heating and non-heating seasons in December 2011 and June 2012. Seasonal variations of gas and particle-bounded PAHs concentrations were observed with higher levels during heating season. The highest total PAH values were associated with the gas phase in both sampling periods. The total PAHs concentration at indoor and at the outdoor sites, during heating season, ranged from 88.45 to 447.72 ng/m(3) and 201.69 to 1017.15 ng/m(3), respectively. During non-heating season, the total PAHs concentration ranged from 36.91 to 271.57 ng/m(3) in Indoor environment and 27.00 to 132.32 ng/m(3) in outdoor environment. Most of the I/O ratios were less than 1, which indicated that the indoor PAHs were mostly from outdoor sources. The use of diagnostic ratio showed that traffic emission and coal combustion are the major sources of PAHs. Only the diagnostic ratios for the school located near the industrial area showed significant deviation compared to other schools.
T2  - Chemical Industry and Chemical Engineering Quarterly / CICEQ
T1  - Pahs Levels in Gas and Particle-Bound Phase in Schools At Different Locations in Serbia
VL  - 21
IS  - 1
SP  - 159
EP  - 167
DO  - 10.2298/CICEQ140206016Z
ER  - 
@article{
author = "Živković, Marija M. and Jovašević-Stojanović, Milena and Cvetković, Anka and Lazović, Ivan and Tasic, Visa and Stevanović, Žana and Gržetić, Ivan A.",
year = "2015",
abstract = "This study investigated seasonal variation of PAHs and their partition between gas and particulate-bounded phases in indoor and outdoor air in 4 schools In Serbia located at different locations. The sampling campaigns were conducted during one workweek at each school successively. Campaigns were conducted in schools during heating and non-heating seasons in December 2011 and June 2012. Seasonal variations of gas and particle-bounded PAHs concentrations were observed with higher levels during heating season. The highest total PAH values were associated with the gas phase in both sampling periods. The total PAHs concentration at indoor and at the outdoor sites, during heating season, ranged from 88.45 to 447.72 ng/m(3) and 201.69 to 1017.15 ng/m(3), respectively. During non-heating season, the total PAHs concentration ranged from 36.91 to 271.57 ng/m(3) in Indoor environment and 27.00 to 132.32 ng/m(3) in outdoor environment. Most of the I/O ratios were less than 1, which indicated that the indoor PAHs were mostly from outdoor sources. The use of diagnostic ratio showed that traffic emission and coal combustion are the major sources of PAHs. Only the diagnostic ratios for the school located near the industrial area showed significant deviation compared to other schools.",
journal = "Chemical Industry and Chemical Engineering Quarterly / CICEQ",
title = "Pahs Levels in Gas and Particle-Bound Phase in Schools At Different Locations in Serbia",
volume = "21",
number = "1",
pages = "159-167",
doi = "10.2298/CICEQ140206016Z"
}
Živković, M. M., Jovašević-Stojanović, M., Cvetković, A., Lazović, I., Tasic, V., Stevanović, Ž.,& Gržetić, I. A.. (2015). Pahs Levels in Gas and Particle-Bound Phase in Schools At Different Locations in Serbia. in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 21(1), 159-167.
https://doi.org/10.2298/CICEQ140206016Z
Živković MM, Jovašević-Stojanović M, Cvetković A, Lazović I, Tasic V, Stevanović Ž, Gržetić IA. Pahs Levels in Gas and Particle-Bound Phase in Schools At Different Locations in Serbia. in Chemical Industry and Chemical Engineering Quarterly / CICEQ. 2015;21(1):159-167.
doi:10.2298/CICEQ140206016Z .
Živković, Marija M., Jovašević-Stojanović, Milena, Cvetković, Anka, Lazović, Ivan, Tasic, Visa, Stevanović, Žana, Gržetić, Ivan A., "Pahs Levels in Gas and Particle-Bound Phase in Schools At Different Locations in Serbia" in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 21, no. 1 (2015):159-167,
https://doi.org/10.2298/CICEQ140206016Z . .
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Pm and Co2 Variability and Relationship in Different School Environments

Lazović, Ivan; Jovašević-Stojanović, Milena; Živković, Marija M.; Tasic, Visa; Stevanović, Žarko M.

(2015)

TY  - JOUR
AU  - Lazović, Ivan
AU  - Jovašević-Stojanović, Milena
AU  - Živković, Marija M.
AU  - Tasic, Visa
AU  - Stevanović, Žarko M.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/550
AB  - Indoor air quality (IAQ) is very important for children health and well-being, since children are particularly vulnerable and sensitive to the presence of air pollutants. This study was performed in two naturally ventilated schools located in the same municipality. The first school is located in an urban area, at a residential-industrial site, while the other school is situated in a rural area. School buildings were chosen based on their urban environment features. The measurements were carried out in heating and non-heating periods in duration of five consecutive working days. The objective of the study was to analyze IAQ in the classrooms with special emphasis on levels and diurnal variations of particulate matter (PM10 and PM2.5), carbon dioxide (CO2) and nitrogen dioxide (NO2) in occupied and unoccupied school classrooms. In this paper, the CO2 concentrations were measured at both indoor and outdoor environments. Concentrations of CO2 higher than 1000 ppm were regularly detected in the Classrooms during teaching hours. Indoor concentrations of PM10 were not exceeded the guideline, daily average, value of 50 mu g/m(3). Concentrations of PM2.5 exceeded the guideline daily average value of 25 mu g/m(3) in both school during heating period. Concentrations of NO2 did not exceed the guideline value of 200 mu g/m(3). Ventilation rates were calculated and compared with the prescribed limits. In both occupied and unoccupied periods high correlation between CO2 and PM concentrations was determined,
T2  - Chemical Industry and Chemical Engineering Quarterly / CICEQ
T1  - Pm and Co2 Variability and Relationship in Different School Environments
VL  - 21
IS  - 1
SP  - 179
EP  - 187
DO  - 10.2298/CICEQ140212020L
ER  - 
@article{
author = "Lazović, Ivan and Jovašević-Stojanović, Milena and Živković, Marija M. and Tasic, Visa and Stevanović, Žarko M.",
year = "2015",
abstract = "Indoor air quality (IAQ) is very important for children health and well-being, since children are particularly vulnerable and sensitive to the presence of air pollutants. This study was performed in two naturally ventilated schools located in the same municipality. The first school is located in an urban area, at a residential-industrial site, while the other school is situated in a rural area. School buildings were chosen based on their urban environment features. The measurements were carried out in heating and non-heating periods in duration of five consecutive working days. The objective of the study was to analyze IAQ in the classrooms with special emphasis on levels and diurnal variations of particulate matter (PM10 and PM2.5), carbon dioxide (CO2) and nitrogen dioxide (NO2) in occupied and unoccupied school classrooms. In this paper, the CO2 concentrations were measured at both indoor and outdoor environments. Concentrations of CO2 higher than 1000 ppm were regularly detected in the Classrooms during teaching hours. Indoor concentrations of PM10 were not exceeded the guideline, daily average, value of 50 mu g/m(3). Concentrations of PM2.5 exceeded the guideline daily average value of 25 mu g/m(3) in both school during heating period. Concentrations of NO2 did not exceed the guideline value of 200 mu g/m(3). Ventilation rates were calculated and compared with the prescribed limits. In both occupied and unoccupied periods high correlation between CO2 and PM concentrations was determined,",
journal = "Chemical Industry and Chemical Engineering Quarterly / CICEQ",
title = "Pm and Co2 Variability and Relationship in Different School Environments",
volume = "21",
number = "1",
pages = "179-187",
doi = "10.2298/CICEQ140212020L"
}
Lazović, I., Jovašević-Stojanović, M., Živković, M. M., Tasic, V.,& Stevanović, Ž. M.. (2015). Pm and Co2 Variability and Relationship in Different School Environments. in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 21(1), 179-187.
https://doi.org/10.2298/CICEQ140212020L
Lazović I, Jovašević-Stojanović M, Živković MM, Tasic V, Stevanović ŽM. Pm and Co2 Variability and Relationship in Different School Environments. in Chemical Industry and Chemical Engineering Quarterly / CICEQ. 2015;21(1):179-187.
doi:10.2298/CICEQ140212020L .
Lazović, Ivan, Jovašević-Stojanović, Milena, Živković, Marija M., Tasic, Visa, Stevanović, Žarko M., "Pm and Co2 Variability and Relationship in Different School Environments" in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 21, no. 1 (2015):179-187,
https://doi.org/10.2298/CICEQ140212020L . .
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On the use of small and cheaper sensors and devices for indicative citizen-based monitoring of respirable particulate matter

Jovašević-Stojanović, Milena; Bartonova, Alena; Topalović, Dušan; Lazović, Ivan; Pokrić, Boris; Ristovski, Zoran

(Elsevier, 2015)

TY  - JOUR
AU  - Jovašević-Stojanović, Milena
AU  - Bartonova, Alena
AU  - Topalović, Dušan
AU  - Lazović, Ivan
AU  - Pokrić, Boris
AU  - Ristovski, Zoran
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/851
AB  - Respirable particulate matter present in outdoor and indoor environments is a health hazard. The particle concentrations can quickly change, with steep gradients on short temporal and spatial scales, and their chemical composition and physical properties vary considerably. Existing networks of aerosol particle measurements consist of limited number of monitoring stations, and mostly aim at assessment of compliance with air quality legislation regulating mass of particles of varying sizes. These networks can now be supplemented using small portable devices with low-cost sensors for assessment of particle mass that may provide higher temporal and spatial resolution if we understand the capabilities and characteristics of the data they provide. This paper overviews typical currently available devices and their characteristics. In addition it is presented original results of measurement and modelling in the aim of one low-cost PM monitor validation. (C) 2015 Elsevier Ltd. All rights reserved.
PB  - Elsevier
T2  - Environmental Pollution
T1  - On the use of small and cheaper sensors and devices for indicative citizen-based monitoring of respirable particulate matter
VL  - 206
SP  - 696
EP  - 704
DO  - 10.1016/j.envpol.2015.08.035
ER  - 
@article{
author = "Jovašević-Stojanović, Milena and Bartonova, Alena and Topalović, Dušan and Lazović, Ivan and Pokrić, Boris and Ristovski, Zoran",
year = "2015",
abstract = "Respirable particulate matter present in outdoor and indoor environments is a health hazard. The particle concentrations can quickly change, with steep gradients on short temporal and spatial scales, and their chemical composition and physical properties vary considerably. Existing networks of aerosol particle measurements consist of limited number of monitoring stations, and mostly aim at assessment of compliance with air quality legislation regulating mass of particles of varying sizes. These networks can now be supplemented using small portable devices with low-cost sensors for assessment of particle mass that may provide higher temporal and spatial resolution if we understand the capabilities and characteristics of the data they provide. This paper overviews typical currently available devices and their characteristics. In addition it is presented original results of measurement and modelling in the aim of one low-cost PM monitor validation. (C) 2015 Elsevier Ltd. All rights reserved.",
publisher = "Elsevier",
journal = "Environmental Pollution",
title = "On the use of small and cheaper sensors and devices for indicative citizen-based monitoring of respirable particulate matter",
volume = "206",
pages = "696-704",
doi = "10.1016/j.envpol.2015.08.035"
}
Jovašević-Stojanović, M., Bartonova, A., Topalović, D., Lazović, I., Pokrić, B.,& Ristovski, Z.. (2015). On the use of small and cheaper sensors and devices for indicative citizen-based monitoring of respirable particulate matter. in Environmental Pollution
Elsevier., 206, 696-704.
https://doi.org/10.1016/j.envpol.2015.08.035
Jovašević-Stojanović M, Bartonova A, Topalović D, Lazović I, Pokrić B, Ristovski Z. On the use of small and cheaper sensors and devices for indicative citizen-based monitoring of respirable particulate matter. in Environmental Pollution. 2015;206:696-704.
doi:10.1016/j.envpol.2015.08.035 .
Jovašević-Stojanović, Milena, Bartonova, Alena, Topalović, Dušan, Lazović, Ivan, Pokrić, Boris, Ristovski, Zoran, "On the use of small and cheaper sensors and devices for indicative citizen-based monitoring of respirable particulate matter" in Environmental Pollution, 206 (2015):696-704,
https://doi.org/10.1016/j.envpol.2015.08.035 . .
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Indoor CO2 measurements in Serbian schools and ventilation rate calculation

Turanjanin, Valentina; Vutiaevic, Biljana; Jovanović, Marina P.; La Mirkov, Niko; Lazović, Ivan

(2014)

TY  - JOUR
AU  - Turanjanin, Valentina
AU  - Vutiaevic, Biljana
AU  - Jovanović, Marina P.
AU  - La Mirkov, Niko
AU  - Lazović, Ivan
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/307
AB  - The indoor air quality in schools is very important for health and learning abilities of children. The primary indoor CO2 source in classrooms is the respiration of school building occupants. Also, CO2 comes from outside as a result of fossil fuels combustion. CO2 concentration depends on a ventilation rate, size of the classroom, number of occupants and their activity and time they spend in school building. Unfortunately, ventilation rates in schools were not often measured, even in cases when inadequate ventilation caused pupils health problems and their absence from school. The increase in indoor CO2 concentration above the outdoor concentration is considered as a good surrogate for the indoor concentrations of bio effluents. This paper presents the research of ventilation rates in five naturally ventilated schools in urban and rural areas in Serbia during the heating season. CO2 concentrations were measured outdoor and in three classrooms for five working days, continually. Ventilation rates are calculated based on measured concentrations of CO2. The results have shown that classrooms in Serbian schools have inadequate ventilation during the heating period. Mean value of carbon dioxide concentration has often been exceeding 1000 ppm. (C) 2014 Elsevier Ltd. All rights reserved.
T2  - Energy
T1  - Indoor CO2 measurements in Serbian schools and ventilation rate calculation
VL  - 77
IS  - SI
SP  - 290
EP  - 296
DO  - 10.1016/j.energy.2014.10.028
ER  - 
@article{
author = "Turanjanin, Valentina and Vutiaevic, Biljana and Jovanović, Marina P. and La Mirkov, Niko and Lazović, Ivan",
year = "2014",
abstract = "The indoor air quality in schools is very important for health and learning abilities of children. The primary indoor CO2 source in classrooms is the respiration of school building occupants. Also, CO2 comes from outside as a result of fossil fuels combustion. CO2 concentration depends on a ventilation rate, size of the classroom, number of occupants and their activity and time they spend in school building. Unfortunately, ventilation rates in schools were not often measured, even in cases when inadequate ventilation caused pupils health problems and their absence from school. The increase in indoor CO2 concentration above the outdoor concentration is considered as a good surrogate for the indoor concentrations of bio effluents. This paper presents the research of ventilation rates in five naturally ventilated schools in urban and rural areas in Serbia during the heating season. CO2 concentrations were measured outdoor and in three classrooms for five working days, continually. Ventilation rates are calculated based on measured concentrations of CO2. The results have shown that classrooms in Serbian schools have inadequate ventilation during the heating period. Mean value of carbon dioxide concentration has often been exceeding 1000 ppm. (C) 2014 Elsevier Ltd. All rights reserved.",
journal = "Energy",
title = "Indoor CO2 measurements in Serbian schools and ventilation rate calculation",
volume = "77",
number = "SI",
pages = "290-296",
doi = "10.1016/j.energy.2014.10.028"
}
Turanjanin, V., Vutiaevic, B., Jovanović, M. P., La Mirkov, N.,& Lazović, I.. (2014). Indoor CO2 measurements in Serbian schools and ventilation rate calculation. in Energy, 77(SI), 290-296.
https://doi.org/10.1016/j.energy.2014.10.028
Turanjanin V, Vutiaevic B, Jovanović MP, La Mirkov N, Lazović I. Indoor CO2 measurements in Serbian schools and ventilation rate calculation. in Energy. 2014;77(SI):290-296.
doi:10.1016/j.energy.2014.10.028 .
Turanjanin, Valentina, Vutiaevic, Biljana, Jovanović, Marina P., La Mirkov, Niko, Lazović, Ivan, "Indoor CO2 measurements in Serbian schools and ventilation rate calculation" in Energy, 77, no. SI (2014):290-296,
https://doi.org/10.1016/j.energy.2014.10.028 . .
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