Future sensitivity of NO/sub 2/ to hydrocarbon and NO/sub x/ controls: Results of photochemical diffusion modeling in the San Francisco Bay area
Conference
·
OSTI ID:5595167
The application of a grid-based photochemical model to the problem of nitrogen dioxide (NO/sub 2/) simulation is reported. The performance of the Livermore Regional Air Quality model (LIRAQ) was evaluated with meteorological conditions of 5 November 1976, a day on which high NO/sub 2/ concentrations were observed. Statistical measures of model performance show that NO/sub 2/ and O/sub 3/ are predicted about as well as O/sub 3/ was on a previous prototype day chosen for high observed O/sub 3/. A sensitivity study was completed with 1985 source inventories to test the effect of HC and NO/sub x/ emission reductions on ambient NO/sub 2/ and O/sub 3/ levels. Reductions in HC only or NO/sub x/ only are about equally effective in reducing ambient NO/sub 2/. Simultaneous reduction of both precursors is slightly more effective. Reduction of HC only is clearly the most effective strategy for O/sub 3/ control. Simultaneous reduction of HC and NO/sub x/ is less effective, and reduction of NO/sub x/ alone significantly increases O/sub 3/ levels.
- Research Organization:
- California Univ., Livermore (USA). Lawrence Livermore Lab.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5595167
- Report Number(s):
- UCRL-84135; CONF-800327-10
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION CONTROL
CHALCOGENIDES
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
DATA
DATA COMPILATION
DATA FORMS
DIFFUSION
HYDROCARBONS
INFORMATION
MAPS
MATHEMATICAL MODELS
MONITORING
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
OZONE
PACIFIC OCEAN
PHOTOCHEMICAL REACTIONS
POLLUTION CONTROL
PRECURSOR
SAN FRANCISCO BAY
SEAS
SURFACE WATERS
SYNERGISM
TABLES
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION CONTROL
CHALCOGENIDES
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
DATA
DATA COMPILATION
DATA FORMS
DIFFUSION
HYDROCARBONS
INFORMATION
MAPS
MATHEMATICAL MODELS
MONITORING
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
OZONE
PACIFIC OCEAN
PHOTOCHEMICAL REACTIONS
POLLUTION CONTROL
PRECURSOR
SAN FRANCISCO BAY
SEAS
SURFACE WATERS
SYNERGISM
TABLES