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Photochemical reactivities of aldehyde-nitrogen oxide systems

Journal Article · · Environ. Sci. Technol.; (United States)
DOI:https://doi.org/10.1021/es60095a002· OSTI ID:5657353
; ;
The photooxidation of formaldehyde, acetaldehyde, and propionaldehyde in the presence of nitrogen oxides produces the same products and biological effects as do hydrocarbon photooxidations. Despite the greater consumption of formaldehyde, propionaldehyde is generally the most reactive in terms of higher product yields, eye irritation, and plant damage. Product yields from the photooxidation of formaldehyde-nitrogen oxide tends to be the most sensitive to variation in the ratio of reactants. As a result the oxidant yields from the reactions in the formaldehyde-nitrogen oxide system exceed those of the other systems at higher aldehyde-nitrogen oxide ratios. The photochemical reactivities of the three aldehydes in terms of product yields, eye irritation, and plant damage overlap those of the olefinic and aromatic hydrocarbons. The reduction of formaldehyde and higher molecular weight aldehydes should be accomplished along with reduction of hydrocarbons in emission control strategies for photochemically reactive substances. 32 references, 12 figures, 5 tables.
Research Organization:
Environmental Protection Agency, Research Triangle Park, NC
OSTI ID:
5657353
Journal Information:
Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 8:10; ISSN ESTHA
Country of Publication:
United States
Language:
English

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Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560303 -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACETALDEHYDE
ALDEHYDES
ATMOSPHERIC CHEMISTRY
BIOLOGICAL EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
COMPARATIVE EVALUATIONS
FORMALDEHYDE
KINETICS
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
REACTION KINETICS