Atmospheric chemistry of toxic contaminants. 1. Reaction rates and atmospheric persistence

Journal Article · Mon Oct 01 00:00:00 EDT 1990 · Journal of the Air and Waste Management Association; (United States)

DOI:https://doi.org/10.1080/10473289.1990.10466792· OSTI ID:5719748

Grosjean, D ^[1]

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1. DGA, Inc., Ventura, CA (United States)

Using structure-reactivity relationships between reaction rate constants and ionization potentials for structural homologues, estimates are presented for the rate constants of the reactions of ozone, the hydroxyl radical, and the nitrate radical with forty toxic air contaminants for which no or little data are available. These rate constants are in turn used to estimate the atmospheric persistence of saturated aliphatics, unsaturated aliphatics, and aromatic toxic organics. The corresponding atmospheric half-lives for removal by chemical reactions range from a few hours for the most reactive toxics (chloroprene, hexachlorocyclo-pentadiene, cresols, nitrosamines, maleic anhydride) to several months for the least reactive compounds (nitrobenzene, methyl bromide, phosgene).

• OSTI ID: 5719748
• Journal Information: Journal of the Air and Waste Management Association; (United States), Vol. 40:10; ISSN 1047-3289
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
TOXIC MATERIALS
ATMOSPHERIC CHEMISTRY
AROMATICS
HYDROCARBONS
HYDROXYL RADICALS
NITRATES
OZONE
POLLUTANTS
STRUCTURE-ACTIVITY RELATIONSHIPS
CHEMISTRY
HAZARDOUS MATERIALS
MATERIALS
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
RADICALS
540120* - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)