Sorptive interactions between VOCs and indoor materials

Won, D; Corsi, RL; Rynes, M

HERO ID

25886

Reference Type

Journal Article

Year

2001

Language

English

PMID

11761600

HERO ID 25886
In Press No
Year 2001
Title Sorptive interactions between VOCs and indoor materials
Authors Won, D; Corsi, RL; Rynes, M
Journal Indoor Air
Volume 11
Issue 4
Page Numbers 246-256
Abstract This study was carried out using various materials (carpet, gypsum board, upholstery, vinyl and wood flooring, acoustic tiles, and fruit) that were exposed to eight gaseous volatile organic compounds (VOCs) (isopropanol, MTBE, cyclohexane, toluene, ethylbenzene, tetrachioroethene, 1,2-dichlorobenzene, and 1,2,4-trichlorobenzene) in electro-polished stainless-steel chambers. Dynamic responses in VOC concentrations were used to determine linear adsorption and desorption rate coefficients and equilibrium partition coefficients. A linear adsorption/desorption model was used to effectively describe the interactions between VOCs and indoor surface materials for short-term source events (10 h). Relationships between sorption parameters and chemical vapor pressure and the octanol-air partition coefficient were observed. Carpet was identified as the most significant sorptive sink for non-polar VOCs. Virgin gypsum board was observed to be a significant sink for highly polar VOCs. Sorptive interactions between non-polar VOCs and indoor materials were not affected by variations in relative humidity. However, increases in relative humidity were observed to increase the degree of sorption of isopropanol to carpet.
Doi 10.1034/j.1600-0668.2001.110406.x
Pmid 11761600
Wosid WOS:000172432300006
Url <Go to ISI>://CCC:000172432300006http://www.wiley.com/WileyCDA/
Is Certified Translation No
Dupe Override No
Is Public Yes
Language Text English
Keyword sorptive sinks; volatile organic compounds; indoor air; vapor pressure; octanol-air partition coefficient
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