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Aksentijevic S.,Business Technical College | Kiurski J.,University of Novi Sad | Vasic M.V.,University of Novi Sad
Environmental Monitoring and Assessment | Year: 2012

Arsenic is a toxic and carcinogenic element. Its toxicity depends on its oxidation state and its concentration. The aim of this paper is to determine, for the first time, the concentration levels of arsenic in water and sediment during the spring/summer period of 2009 in Sevojno, a region in West Serbia with a long industrial tradition, as well as to determine the model of arsenic distribution in water/sediment system and the level of its compatibility with the existing theoretical model. Adsorption is a continual process in the environment. It plays a very important role in the transport and fate of pollutants, especially in sediment. The adsorption of arsenic was examined using the Freundlich adsorption isotherm. © 2011 Springer Science+Business Media B.V. Source

Kiurski J.S.,University of Novi Sad | Maric B.B.,University of Novi Sad | Aksentijevic S.M.,Business Technical College | Oros I.B.,University of Novi Sad | Kecic V.S.,University of Novi Sad
International Journal of Environmental Science and Technology | Year: 2016

This paper, through certain printing techniques, examines the types of occupational pollutants and the adverse impacts of the printing process. Also, it proposes the measures for better preservation and environmental protection. The paper analyzes the results of the quantitative identification of hazardous materials from various printing techniques: pad, screen, offset, flexographic, and digital. The study included the analysis of waste printing inks and purification of printing wastewater with adsorption methods. Besides that, the preliminary monitoring of ambient indoor air quality was performed. The multiple regression analysis was applied on the obtained experimental results, in order to determine the mutual correlation between the ozone and the total volatile organic compounds and microclimate parameters. It was observed that a quantitative correlation exists between the investigated occupational hazards, which also indicate the strength of the agreement. The obtained results could be useful to evaluate the tendency of hazardous air pollutants in printing industries worldwide. © 2016, Islamic Azad University (IAU). Source

Kiurski J.S.,University of Novi Sad | Oros I.B.,University of Novi Sad | Kecic V.S.,University of Novi Sad | Kovacevic I.M.,University of Novi Sad | Aksentijevic S.M.,Business Technical College
Stochastic Environmental Research and Risk Assessment | Year: 2015

The paper includes the identification of the main factors responsible for the temporal variations of indoor pollutants during three daily intervals in a photocopying shop. The measurements of concentration levels of total volatile organic compounds, ozone, carbon monoxide, carbon dioxide, nitrogen dioxide, ammonia, perchloroethylene and non-methane hydrocarbons were performed. The individual concentrations of target pollutants were subjected to principal component analysis (PCA) using a software XLSTAT 2014.1.10. Pearson correlation model indicated the relatively weak correlation between the investigated pollutants in a photocopying environment. PCA extracted three principal components (PCs) from the indoor air pollution data set. Obtained PCs explained 56.72 % of the total variance. The summarized biplots showed which pollutants are responsible for photocopying indoor pollution per sampling day/sampling point/time interval/number of measurement. The results pointed out that the main PCs were related to the usage of toners, electrostatic discharge, heating of photocopiers as well as general intensifying of photocopying processes. © 2015 Springer-Verlag Berlin Heidelberg Source

Kiurski J.S.,University of Novi Sad | Maric B.B.,University of Novi Sad | Aksentijevic S.M.,Business Technical College | Oros I.B.,University of Novi Sad | And 2 more authors.
Renewable and Sustainable Energy Reviews | Year: 2013

The paper investigates the quality of air in working premises of screen printing in Novi Sad, Serbia. The concentrations of Volatile Organic Compounds, formaldehyde, acetone and ozone were measured in a five screen printing facilities. Measurements were carried out during 4 h, every 40 min, using the air sampler PRO-EKOS AT 401X and mobile gas chromatograph. The sampling position was determined according to the technical characteristics of screen printing desk. Air was sampled from one sampling point as the most suitable in terms of production volume. Determined concentrations of certain gases indicate not only their presence, but also the fact that their level exceeds the prescribed value of the OSHA and NIOSH standards. The concentrations of acetone, isopropanol and methyl ethyl ketone increased from 0.120 to 0.214 ppm within 80 min of printing process in most investigated facilities. The ozone concentrations varied from 0.650 to 3.997 ppm and they differ between facilities almost 1.5 to 6 times depending on intensity of the ventilation, diffusion processes, or interaction with other Volatile Organic Compounds of indoor air. The obtained results confirmed the existence of mutual dependence between pollutants. The regression models determined the quantitative dependence of the studied phenomenon. © 2013 Elsevier Ltd. All rights reserved. Source

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