Polycyclic Aromatic Hydrocarbons in Indoor Air and EnvironmentalTobacco Smoke Measured with a New Integrated Organic Vapor-ParticleSampler

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Sampling details. The novel aspect of the sampling equipment is the use of ground XAD-4 resin as a coating for annular denuders. Figure 1 shows a schematic diagram of one sampling configuration used for field testing the IOVPS in indoor air and ETS. Commercially available, single-channel glass denuders, 22 cm long, with a 1 mm annulus (University Research Glass, Carrboro, NC, USA were used with a Teflon- ) lined aluminum cyclone (cutoff 2.5 microns at 10 L mine ) preceding the first denuder. Three XAD-4-coated denuders were connected in series between the cyclone and a Teflon filter pack which contained ... continued below

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Gundel, L.A.; Daisey, J.M.; Mahanama, K.R.R.; Lee, C.C. & Stevens,R.K. January 1, 1993.

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Sampling details. The novel aspect of the sampling equipment is the use of ground XAD-4 resin as a coating for annular denuders. Figure 1 shows a schematic diagram of one sampling configuration used for field testing the IOVPS in indoor air and ETS. Commercially available, single-channel glass denuders, 22 cm long, with a 1 mm annulus (University Research Glass, Carrboro, NC, USA were used with a Teflon- ) lined aluminum cyclone (cutoff 2.5 microns at 10 L mine ) preceding the first denuder. Three XAD-4-coated denuders were connected in series between the cyclone and a Teflon filter pack which contained a pre-extracted and pre-weighed Teflon-coated glass-fiber filter. (The three-denuder configuration was used for determining breakthrough of naphthalene and its methyl derivatives as a function of flow rate.) In some experiments, a coated denuder followed the filter pack. The parallel sorbent bed sampler used an aluminum open-face filter holder with a Teflon-coated glass-fiber filter, followed by a glass tube packed with 2.5 g cleaned XAD-4 resin. Flow rates, measured with a dry gas test meter, were 5, 10 and 20 L min-1 for field testing; sampling times varied from 3 to 22 hours. Indoor air with no combustion sources was sampled in an unoccupied room. Diluted sidestream smoke was sampled as a surrogate for ETS in an unventilated 20 m3 chamber at 5 L rnin-l for hour-long periods while a single-port smoking machine smoked 3 cigarettes. Ambient temperature varied between 22 and 26 C.

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  • Indoor Air '93, Helsinki, Finland,07/5-8/1993

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  • Report No.: LBL--33683
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 914446
  • Archival Resource Key: ark:/67531/metadc886916

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  • January 1, 1993

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  • Sept. 22, 2016, 2:13 a.m.

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  • Sept. 30, 2016, 2:10 p.m.

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Gundel, L.A.; Daisey, J.M.; Mahanama, K.R.R.; Lee, C.C. & Stevens,R.K. Polycyclic Aromatic Hydrocarbons in Indoor Air and EnvironmentalTobacco Smoke Measured with a New Integrated Organic Vapor-ParticleSampler, article, January 1, 1993; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc886916/: accessed August 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.