Response of chemiluminescence NO/sub x/ analyzers and ultraviolet ozone analyzers to organic air pollutants

Journal Article · Sun Sep 01 04:00:00 EDT 1985 · Environ. Sci. Technol.; (United States)

DOI:https://doi.org/10.1021/es00139a016· OSTI ID:5714533

Grosjean, D; Harrison, J

A chemiluminescent NO/sub x/ analyzer and an ultraviolet photometry ozone analyzer were found to respond to a number of organic pollutants and mixtures in purified air. Two types of interferences were observed with the NO/sub x/ analyzer. A small positive interference as NO was observed with organosulfur compounds. Positive interferences as NO/sub 2/ were observed with nitric acid, methyl nitrate, peroxyacetyl nitrate, N/sub 2/O/sub 5/ (in O/sub 3/-NO/sub 2/ mixtures in the dark), certain nitro aromatics (nitrocresol), and chlorine-containing compounds (ClNO/sub x/) but not with peroxybenzoyl nitrate. The ultraviolet photometry ozone analyzer gave a positive response to ozone-free atmospheres containing aromatic compounds including styrene, methylstyrene, o-cresol, and nitrocresol. Since many aromatic compounds absorb light at approx. 254 nm, methods other than UV photometry should be employed to measure ozone in atmospheres containing these aromatics.

• Research Organization: Daniel Grosjean and Associates, Inc., Camarillo, CA
• OSTI ID: 5714533
• Journal Information: Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 19:9; ISSN ESTHA
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR
AIR POLLUTION MONITORS
ATMOSPHERIC CHEMISTRY
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMILUMINESCENCE
CHEMISTRY
ENVIRONMENTAL EFFECTS
ESTERS
FLUIDS
GASES
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INTERFERING ELEMENTS
LUMINESCENCE
MEASURING INSTRUMENTS
MONITORS
NITRATES
NITRIC ACID
NITRIC ACID ESTERS
NITRO COMPOUNDS
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
OZONE
PEROXYACETYL NITRATE
PHOTOMETRY
SURFACE AIR