%0 Journal Article %A Kiurski S. Jelena and Kecić S. Vesna and Oros B. Ivana %D 2016 %J International Journal of Environmental and Ecological Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 111, 2016 %T Statistically Significant Differences of Carbon Dioxide and Carbon Monoxide Emission in Photocopying Process %U https://publications.waset.org/pdf/10004048 %V 111 %X Experimental results confirmed the temporal variation of carbon dioxide and carbon monoxide concentration during the working shift of the photocopying process in a small photocopying shop in Novi Sad, Serbia. The statistically significant differences of target gases were examined with two-way analysis of variance without replication followed by Scheffe's post hoc test. The existence of statistically significant differences was obtained for carbon monoxide emission which is pointed out with F-values (12.37 and 31.88) greater than Fcrit (6.94) in contrary to carbon dioxide emission (F-values of 1.23 and 3.12 were less than Fcrit). Scheffe's post hoc test indicated that sampling point A (near the photocopier machine) and second time interval contribute the most on carbon monoxide emission. %P 330 - 334