Urban exports to the nonurban troposphere: Results from project MISTT

Journal Article · Tue Dec 20 04:00:00 EST 1983 · J. Geophys. Res.; (United States)

DOI:https://doi.org/10.1029/JC088iC15p10745· OSTI ID:6686402

White, W H; Patterson, D E; Wilson, Jr, W E

An identifiable plume of contaminated air forms downwind of metropolitan St. Louis under certain conditions. The contribution of this urban plume to tropospheric ozone and aerosol loadings is calculated from concentration and wind fields measured during Project MISTT. On all three summer days selected for study, net ozone exports reached 2-3 x 10/sup 6/ g mol/h, or about 3/2 mole per mole of emitted nitrogen, within hours of emission. Conversion of sulfur dioxide to sulfate aerosol was incomplete at the distances sampled: it is estimated that haze exports ultimately reached 500--600 km/sup 2//h, or 8--9 m/sup 2/ per gram of emitted sulfur. Simple extrapolation of the yields observed at St. Louis indicates that anthropogenic inputs overwhelm natural contributions to ozone and aerosols over eastern North America.

• Research Organization: Center for Air Pollution Impact and Trend Analysis, Washington University
• OSTI ID: 6686402
• Journal Information: J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 88:C15; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
ATMOSPHERIC CHEMISTRY
CHALCOGENIDES
CHEMISTRY
FEDERAL REGION VII
MISSOURI
NORTH AMERICA
OXIDES
OXYGEN COMPOUNDS
OZONE
PARTICLES
PARTICULATES
PLUMES
POLLUTION
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
URBAN AREAS
USA