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Development and evaluation of a method to estimate potential formaldehyde dose from inhalable dust/fibers.

Authors
Kennedy-ER; Gagnon-YT; Teass-AW; Seitz-T
Source
Appl Occup Environ Hyg 1992 Apr; 7(4):231-240
NIOSHTIC No.
00206619
Abstract
A method for estimating formaldehyde (50000) dose from inhalable airborne dust/fibers was described. Applicability of the method to actual field conditions was noted. The method incorporated an inhalable sampler for collection of the dust/fibers. Filters containing sampled dust/fibers were placed in distilled water and incubated at 37 degrees-C for 4 hours to free the formaldehyde. Detection limits were 0.44 and 0.08 micrograms per filter sample for the chromotropic-acid and the 2,4-DNP procedures, respectively. Inhalable and closed face samplers were compared to cassette samplers at a garment factory and a waterbed accessory operation. At the garment factory, the inhalable samplers collected more dust/fibers; at the accessory facility, sampler efficiencies were comparable. The authors suggest that, although the hydrolysis procedure employed to liberate formaldehyde from dust/fibers may differ from that in the nasal and oropharyngeal passages, collection levels approximated localized inhaled dose.
Keywords
NIOSH-Author; Analytical-methods; Air-quality-monitoring; Dust-exposure; Sampling-methods; Dust-inhalation; Dust-samplers
Contact
Eugene R. Kennedy, Methods Development Section, Methods Research Branch, Division of Physical Sciences and Engineering, National Institute for Occupational Safety and Health, 4676 Columbia Parkway, Cincinnati, Ohio 45226
CODEN
AOEHE9
CAS No.
50-00-0
Publication Date
19920401
Document Type
Journal Article
Fiscal Year
1992
NTIS Accession No.
NTIS Price
Issue of Publication
4
ISSN
1047-322X
NIOSH Division
DPSE; DSHEFS
Source Name
Applied Occupational and Environmental Hygiene
State
OH
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