Development of worst case meteorology criteria. Final report

Technical Report · Fri Nov 01 04:00:00 EST 1985

OSTI ID:5338441

Nokes, W A; Benson, P E

A meteorological severity index (MSI) representing the relationship between meteorological parameters that contribute to worst-case carbon monoxide concentrations near roadways is described. The MSI is based on sensitivity studies of the California Lines Source Dispersion Model, CALINE4. Meteorological data collected at several monitoring sites throughout California are described. Probabilistic analysis of the monitoring data (stratified by geography and time-of-day) is combined with the MSI to develop worst-case meteorology inputs for estimating 1-hour CO levels using CALINE4. Guidelines are presented to help CALINE4 users develop or estimate an appropriate persistence factor for a project location. The probabilistic method described in the report can be used to establish new worst-case meteorology criteria in the event of changes in the number of exceedances allowed by the National Ambient Air Quality Standards. The variety of locations studied in California should make results of the study usable by other states.

• Research Organization: California State Dept. of Transportation, Sacramento (USA). Transportation Lab.
• OSTI ID: 5338441
• Report Number(s): PB-86-215993/XAB; TL-604196
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330702 -- Emission Control-- Carbon Monoxide
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION MONITORING
AIR QUALITY
CALIFORNIA
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
DATA ANALYSIS
ENVIRONMENTAL QUALITY
FEDERAL REGION IX
MATHEMATICAL MODELS
NORTH AMERICA
OXIDES
OXYGEN COMPOUNDS
ROADS
STANDARDS
USA