Organic vapor emissions from wall-to-wall carpets as a source of indoor air pollution.
Appl Occup Environ Hyg 1996 May; 11(5):436-439
A study was conducted examining levels of organic vapors emitted from wall to wall carpeting. Ambient and head space air samples were collected over 13 days from four sites in which new carpeting had been installed using direct glue down synthetic nylon pile carpeting with styrene/butadiene based latex mastic and analyzed by gas chromatography. Similar chromatographic patterns were seen between ambient and head space chamber samples and between the four sites. Organic compounds identified up to 13 days after carpet installation included toluene (108883), o-xylene (95476), n-nonane (111842), d-limonene (138863), n-undecane (1120214), and n-tridecane (629505). p-Xylene (106423), n-octane (111659), and m-xylene (108383) were seen up to 8 days after installation. Emission rates ranged from 12.51 to 213.53 milligrams/square meter/hour (mg/m2/hr) during the first day after carpet installation and from 0.21mg/m2/hr to 2.53 on day 13; air concentrations ranged from 3.40 to 40.69mg/m3 on day one and from 0.83 to 0.23mg/m3 on day 13. None of the measured air concentrations approached reported thresholds for sensory symptoms following exposure to refined petroleum solvents. The authors conclude that a minimum of 2 weeks is necessary for organics emitted from newly installed carpeting to decay to below the odor threshold for most individuals.
NIOSH-Author; Organic-vapors; Solvent-vapors; Indoor-air-pollution; Petroleum-products; Occupational-exposure; Environmental-exposure; Air-sampling; Exposure-levels; Indoor-environmental-quality
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Applied Occupational and Environmental Hygiene