« Previous AbstractOrganic Semiconductors Processed from Synthesis-to-Device in Water    Next AbstractProtein interaction quantified in vivo by spectrally resolved fluorescence resonance energy transfer »

Indoor Air

Title:		Ozone reaction with clothing and its initiated VOC emissions in an environmental chamber
Author(s):		Rai AC; Guo B; Lin CH; Zhang J; Pei J; Chen Q;
Address:		"School of Mechanical Engineering, Purdue University, West Lafayette, IN, USA"
Journal Title:		Indoor Air
Year:		2014
Volume:		20130809
Issue:		1
Page Number:		49 - 58
DOI:		10.1111/ina.12058
ISSN/ISBN:		1600-0668 (Electronic) 0905-6947 (Linking)
Abstract:		"Human health is adversely affected by ozone and the volatile organic compounds (VOCs) produced from its reactions in the indoor environment. Hence, it is important to characterize the ozone-initiated reactive chemistry under indoor conditions and study the influence of different factors on these reactions. This investigation studied the ozone reactions with clothing through a series of experiments conducted in an environmental chamber under various conditions. The study found that the ozone reactions with a soiled (human-worn) T-shirt consumed ozone and generated VOCs. The ozone removal rate and deposition velocity for the T-shirt increased with the increasing soiling level and air change rate, decreased at high ozone concentrations, and were relatively unaffected by the humidity. The deposition velocity for the soiled T-shirt ranged from 0.15 to 0.29 cm/s. The ozone-initiated VOC emissions included C6-C10 straight-chain saturated aldehydes, acetone, and 4-OPA (4-oxopentanal). The VOC emissions were generally higher at higher ozone, humidity, soiling of T-shirt, and air change rate. The total molar yield was approximately 0.5 in most cases, which means that for every two moles of ozone removed by the T-shirt surface, one mole of VOCs was produced"
Keywords:		Adult Air Pollutants/*chemistry *Clothing Humans Male Ozone/*chemistry Volatile Organic Compounds/analysis/*chemistry Air quality Environmental factors Ozone Secondary emissions Skin oil Surface reactions Volatile organic compounds;
Notes:		"MedlineRai, A C Guo, B Lin, C-H Zhang, J Pei, J Chen, Q eng Research Support, Non-U.S. Gov't England 2013/07/12 Indoor Air. 2014 Feb; 24(1):49-58. doi: 10.1111/ina.12058. Epub 2013 Aug 9"