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Polycyclic aromatic hydrocarbons in indoor air and environmental tobacco smoke measured with a new integrated organic vapor-particle sampler

Conference ·
OSTI ID:6358656
; ; ;  [1];  [2]
  1. Lawrence Berkeley Lab., CA (United States)
  2. Environmental Protection Agency, Research Triangle Park, NC (United States). Atmospheric Research and Exposure Assessment Lab.
To avoid sampling artifacts, an integrated organic vapor-particle sampler (IOVPS) has been developed for polycyclic aromatic hydrocarbons (PAH). The ICIVPS is based on an XAD-4-coated annular denuder which strips gas phase species from the air stream before collection of particles on a filter. A second denuder downstream of the filter collects species desorbed ( blown off'') the particles during sampling. PAH are determined in extracts of both denuders and the filter. For indoor air with no combustion sources, the gas-phase concentrations of several semivolatile PAH measured with the IOVPS averaged about half of those found with a conventional filter-sorbent bed sampler. For envirorunental tobacco smoke the gas-phase concentrations of the same PAH from the IOVPS averaged 70% of those found with the sorbent bed sampler. Particulate-phase concentrations were correspondingly higher with the IOVPS, but measurable blow off' semivolatile PAH occurred.
Research Organization:
Lawrence Berkeley Lab., CA (United States); Environmental Protection Agency, Research Triangle Park, NC (United States). Atmospheric Research and Exposure Assessment Lab.
Sponsoring Organization:
DOE; EPA; DOHHS; USDOE, Washington, DC (United States); Environmental Protection Agency, Washington, DC (United States); Department of Health and Human Services, Washington, DC (United States)
DOE Contract Number:
AC03-76SF00098
OSTI ID:
6358656
Report Number(s):
LBL-33683-Rev.; CONF-930701--5-Rev.; ON: DE93015181; CNN: 5-R01-HL42490-02
Country of Publication:
United States
Language:
English