Procedures for quantifying relationships between photochemical oxidants and precursors: supporting documentation

Technical Report · Wed Feb 01 04:00:00 EST 1978

OSTI ID:6479934

Freas, W P; Martinez, E L; Meyer, E L; Possiel, N C; Sennett, D H

This report is a companion document to PB-278 142, Uses, Limitations and Technical Basis of Procedures for Quantifying Relationships Between Photochemical Oxidants and Precursors. Particular emphasis is placed on providing additional background documentation on the development of the Empirical Kinetic Modeling Approach (EKMA). Specifically, the report describes: (1) procedures for estimating the prevailing 6-9 a.m. NMHC/NOx ratio for a city, (2) the use of default NMHC/NOx ratios, (3) procedures for estimating transported ozone concentrations and (4) the results of kinetic model simulations for a range of meteorological conditions and precursor levels. Topics which have general significance in a number of different procedures for quantifying ozone-precursor relationships include the prevailing background concentration of ozone and the greater importance of transported ozone as opposed to transported precursors.

• Research Organization: Environmental Protection Agency, Research Triangle Park, NC (USA). Office of Air Quality Planning and Standards
• OSTI ID: 6479934
• Report Number(s): PB-280058; EPA-450-2-77/021b
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
CHALCOGENIDES
DIFFUSION
EARTH ATMOSPHERE
ECOLOGICAL CONCENTRATION
ENVIRONMENTAL TRANSPORT
HYDROCARBONS
KINETICS
MASS TRANSFER
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
OZONE
PHOTOCHEMICAL OXIDANTS
POLLUTION
REACTION KINETICS