Mexico City ozone concentrations as a function of readily-available meteorological parameters

Conference · Tue Mar 01 04:00:00 EST 1994

OSTI ID:10131288

Brown, M J

Daily maximum ozone concentrations measured at four sites within the Mexico City basin during the winter months are plotted as functions of different meteorological parameters that are routinely measured at surface stations. We found that ozone concentrations are most strongly correlated to the increase in daytime temperature and the maximum daytime wind speed. We also discovered that high ozone values at the sites in the southern end of the basin occur when winds come out of the northeast. In contrast, wind direction was found to be uncorrelated with high ozone values at the northern sites. From straightforward combinations of the meteorological variables, we derived some simple rules for estimating lower and upper bounds on the ozone concentration. Scatter in the data was too long to give significance to best-fit equations and statistics. Additionally, a small rawinsonde data set was used to investigate ozone`s dependence on boundary-layer height and near-surface temperature gradient. Results were inconclusive, however, due to the small size of the data set.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 10131288
• Report Number(s): LA-UR--94-572; CONF-940266--1; ON: DE94007576
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120
540150
AIR POLLUTION
ATMOSPHERIC CHEMISTRY
CHEMICALS MONITORING AND TRANSPORT
ECOLOGICAL CONCENTRATION
HOURLY VARIATIONS
METEOROLOGY
MEXICO
NITROGEN OXIDES
OZONE
PHOTOLYSIS
SITE RESOURCE AND USE STUDIES