| Abstract [eng] |
Every day more and more tobacco products appear on the market: new generation electronic cigarettes and Tobacco Heating Systems, which are used as an alternative to the conventional cigarettes. Such innovations, however, lack of adequate research regarding human health, therefore it’s hard to draw any clear conclusions on how electronic cigarettes and tobacco heating system effects human health and indoor air quality. Moreover there’s still lack of methodological data for analysis of new nicotine containing products pollution with aerosol particles and their change in temporal and spatial variation. The aim of this project – describe aerosol particle emissions of new nicotine containing products and compare them with conventional cigarette pollution. Two projects and their data was used to determine electronic cigarettes and tobacco heating system effects on indoor air quality. An experimental chamber imitating real conditions with an installed heated dummy was used in the overall experiment. During the experiment aerosol particle concentration change in temporal and spatial variation as well as aerosol particle distribution by size was analyzed. Generated electronic cigarette and tobacco heating system aerosol particle emissions was compared with conventional cigarette emissions. Gathered data was processed by using main descriptive statistical analysis indicators. During the research generated electronic cigarette and tobacco heating system. aerosol particle variation in temporal and spatial environment was evaluated. It was established that electronic and conventional cigarette aerosol concentration is influenced by distance to dummy and consumer exhaled smoke topographies. Increasing distance to the dummy, generated electronic cigarette aerosol concentration decreased on average 1.5 times and for conventional cigarettes increased 2 times. Tobacco heating system. is influenced by humidity, distance to the dummy and air flow coefficient. At 30 % humidity, air flow coefficient 0.5 h-1 and 0.5 m distance to dummy, which is 1.92×104 #/cm3, lowest tobacco heating system aerosol particle concentration was established. By comparing average generated electronic cigarette, conventional cigarette and tobacco heating system aerosol particle concentrations, it was observed that tobacco heating system generated 1.64×105±1.61×105 #/cm3 , which is 2.7 times less than electronic cigarette and 21.9 times less than conventional cigarette. After evaluating generated electronic and conventional cigarette aerosol particle distribution by size it was determined that 0.0165–1.59 μm particles were found most frequently. After completing Mann Whitney U test, it was determined that difference between generated electronic and conventional cigarette aerosol particle concentration is statistically significant (p<0.05). Moreover it was also determined that difference between generated tobacco heating system aerosol particle concentration with different conditions is statistically significant (p<0.05). |
