Some aspects of nighttime atmospheric chemistry
Nighttime atmospheric chemistry is simulated in two different situations: an offshore oceanic environment, the Santa Barbara Channel region of the south central coast of California, and a dry environment, the Mojave Desert of California. In the marine case, conversion of NO/sub x/ to peroxyacetyl nitrate (PAN) and HNO/sub 3/ is rapid; HNO/sub 3/ is formed by homogeneous hydrolysis of N/sub 2/O/sub 5/ and by nitrate radical reactions with organic gases, and the rate of HNO/sub 3/ production is limited by the abundance of O/sub 3/. Even in the desert case, predictions indicate that homogeneous hydrolysis of N/sub 2/O/sub 5/ dominates HNO/sub 3/ formation at night. The implications of recent studies concerning the unimolecular decomposition of NO/sub 3/ are discussed.
- Research Organization:
- California Institute of Technology, Pasadena
- OSTI ID:
- 6806092
- Journal Information:
- Environ. Sci. Technol.; (United States), Vol. 20:11
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ATMOSPHERIC CHEMISTRY
DAILY VARIATIONS
NITRIC ACID
NITROGEN OXIDES
NITROXYL RADICALS
OZONE
PEROXYACETYL NITRATE
DECOMPOSITION
DESERTS
EXPERIMENTAL DATA
SANTA BARBARA CHANNEL
SIMULATION
ARID LANDS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
DATA
ESTERS
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
NITRATES
NITRIC ACID ESTERS
NITROGEN COMPOUNDS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RADICALS
VARIATIONS
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)