| Title: | A simple method to measure the gas-phase SVOC concentration adjacent to a material surface |
| Author(s): | Wu Y; Xie M; Cox SS; Marr LC; Little JC; |
| Address: | "Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA, USA" |
| ISSN/ISBN: | 1600-0668 (Electronic) 0905-6947 (Linking) |
| Abstract: | "Assessing human exposure to semivolatile organic compounds (SVOCs) emitted from materials and products is difficult because methods are not available to easily measure the key emission parameters. A simple method based on a passive sampling technique was thus developed to measure the gas-phase SVOC concentration (y(0) ) immediately adjacent to the material surface in a consumer product. The method employs standard stainless steel thermal desorption tubes, with values of y(0) and an additional unknown parameter, K, the tube surface/air partition coefficient inside the desorption tube, obtained by fitting a diffusion model to the sampling data. Phthalates in two types of polyvinyl chloride flooring were selected to test the method. The values of y(0) and K agree well with those measured in independent chamber tests. The y(0) measurement method is shown to be applicable to chemicals with a wide range of vapor pressures. This novel method should be useful for assessing potential exposure to SVOCs in consumer products as well as for exposure-based prioritization of chemicals and their associated products in indoor environments" |
| Keywords: | "Air Pollution, Indoor/*analysis Construction Materials/*analysis Environmental Monitoring/*methods *Floors and Floorcoverings Humans Volatile Organic Compounds/*analysis Consumer products Exposure Materials Passive sampling Phthalates SVOCs;" |
| Notes: | "MedlineWu, Y Xie, M Cox, S S Marr, L C Little, J C eng Research Support, U.S. Gov't, Non-P.H.S. England 2015/11/27 Indoor Air. 2016 Dec; 26(6):903-912. doi: 10.1111/ina.12270. Epub 2015 Dec 26" |
