Emissions of volatile organic compounds associated with painting methods and an estimation of the α-dicarbonyl formation potential

This study was conducted to determine the emission characteristicsof volatile organic compounds associated with coating methods including brush, roll, and spray. A concrete waterborne paint, three concrete oil-borne paints, and four wood oil-borne paints were selected in this work. It was observed that the emission of volatile organic compounds from paints was affected by the coating methods. The emission time of volatile organic compounds from a spray painting process was faster than that of brush and roll painting. In contrast, the emission characteristicsof volatile organic compounds from coating materials applied by brush and roller was statistically similar. The alpha-dicarbonyl formation potential in the indoor air according to the reaction of volatile organic compounds and OH radical was also estimated. It was observed that the concentration of alpha-dicarbonyl might reach 2.2 mu g/m(3) (product A2, spray method). Spraymethod might helpto control volatile organic compounds and the formation of alpha-dicarbonyl from coating processin the indoor environment more effectively than other methods because theaccumulative emission of volatile organic compounds during spraycoating process could be removed easily.