Statistical approach for characterization of photocopying indoor pollution

Autor: Jelena S. Kiurski, Sanja Mandarić, Snezana M. Aksentijevic
Rok vydání: 2018
Předmět:
Zdroj: Air Quality, Atmosphere & Health. 11:867-881
ISSN: 1873-9326
1873-9318
DOI: 10.1007/s11869-018-0595-z
Popis: Monitoring the concentration of nitrogen dioxide and total volatile organic compounds, as well as the particle number of various sizes, was carried out in indoor air of three photocopying shops in Novi Sad, Serbia. Air samples were collected and analyzed in situ during 8-h working time, in five working days. The concentrations of nitrogen dioxide and total volatile organic compounds were correlated to a particle number by using multiple linear regression analysis. Results indicated that a quantitative direct correlation exists between the investigated variables in first and third photocopying shop, with a medium strength. Furthermore, the interdependence of pollutants was statistically significant, which is confirmed by the experimentally obtained values of parameter F higher than the theoretical F value. A positive correlation between the investigated variables was also confirmed by the obtained t values. Obtained results confirmed the correlations of nitrogen dioxide, total volatile organic compounds, and the particulate matter based on the fact that they are all primarily emitted during photocopy processing. Investigated variables are presented with regression models for each photocopying shop, which further served for drawing a ternary graph. The results may be useful to understand the actual levels of pollutant emissions and their interaction, as well as a better understanding of the mechanism of their formation.
Databáze: OpenAIRE
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