Release of SO/sub 2/ during formaldehyde measurement with impingers containing sodium bisulfite

Journal Article · Sun Sep 01 00:00:00 EDT 1985 · Am. Ind. Hyg. Assoc. J.; (United States)

OSTI ID:5809178

Witek, Jr, T J; Tosun, T; Schachter, E N

Measurement of ambient concentrations of formaldehyde (HCHO) by a modified version of NIOSH methodology involves the use of impingers that contain sodium bisulfite (NaHSO/sub 3/) in solution. After air passes through the impingers and the solution is developed with chromatropic acid and measured spectrophotometrically, HCHO levels can be determined by comparison with a standard HCHO concentration curve. During a clinical investigation of the lung function effects of HCHO, routine monitoring of background pollutants in our environmental chamber revealed spikes of SO/sub 2/ during the intermittent sampling period for HCHO. A simple alternative methodology is discussed.

• Research Organization: Yale Univ., New Haven, CT
• OSTI ID: 5809178
• Journal Information: Am. Ind. Hyg. Assoc. J.; (United States), Journal Name: Am. Ind. Hyg. Assoc. J.; (United States) Vol. 46:9; ISSN AIHAA
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION MONITORING
AIR SAMPLERS
ALDEHYDES
ALKALI METAL COMPOUNDS
CHALCOGENIDES
EQUIPMENT
FORMALDEHYDE
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SAMPLERS
SODIUM COMPOUNDS
SULFITES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES