Transport of ozone associated with an air mass

Conference · Sat Jan 01 04:00:00 EST 1977

OSTI ID:7104052

Wolff, G T; Lioy, P J; Wight, G D; Meyers, R E; Cederwall, R T

As a result of the 1975 Moodus Conference, a task force was established to analyze the ozone data from the 19 Moodus states and to assess the importance of ozone transport across the Midwestern and Northeastern United States. Data from daily ozone maps, aerial ozone measurements, and trajectory analysis are used in this paper to describe the typical summertime ozone episode in the Moodus study area. The results indicate that ozone concentrations in a high pressure system as it moves out of Canada into the Midwest are typically 30-50 ppb. Higher concentrations first develop over the areas of high anthropogenic precursor emissions. As the high pressure moves eastward, the areas of high ozone increase in size and concentration and eventually merge together. Vertical ozone profiles conducted on consecutive days and nights suggest an ozone half-life of 29.4 h above the nocturnal inversion layer. Using the corresponding dark phase rate of ozone decay in conjunction with air parcel trajectories, it was estimated that, under certain conditions, over 100 ppb of ozone are transported from the Midwest to the Northeastern Atlantic Coast.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: EY-76-C-02-0016
• OSTI ID: 7104052
• Report Number(s): BNL-22569; CONF-770622-3
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AERIAL MONITORING
AIR
AIR POLLUTION
CHEMICAL COMPOSITION
DAILY VARIATIONS
ENVIRONMENTAL TRANSPORT
FLUIDS
GASES
MASS TRANSFER
METEOROLOGY
MONITORING
NORTH AMERICA
OZONE
POLLUTION
PRESSURE GRADIENTS
REGIONAL ANALYSIS
SEASONAL VARIATIONS
SURFACE AIR
USA
VARIATIONS