Aerosol formation in urban plumes over Lake Michigan

Conference · Tue Jan 01 04:00:00 EST 1980 · Ann. N.Y. Acad. Sci.; (United States)

OSTI ID:6759185

Miller, D F ^[1]; Alkezweeny, A J ^[2]

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1. Battelle Columbus Laboratories, Columbus, OH
2. Battelle Pacific Northwest Laboratories, Richland, WA

Results are reported for field measurements of sulfate aerosol formation in urban plumes from Milwaukee, Wis., that were transported over Lake Michigan by westerly winds. Various types of airborne measurements were made of, for example, light scattering, particles larger than 0.01 micron, the total concentration of condensation nuclei, total hydrocarbons, and concentrations of O/sub 3/, SO/sub 2/, NO, NO/sub x/, SO/sub 4/(-), trace metals, nitrate, and ammonium. Data on derived SO/sub 2/ oxidation rates are compared with the results of a chemical kinetics model that simulated the pollutant conditions. It is concluded that rates of SO/sub 2/ oxidation in isolated urban plumes appear to be quite variable, that kinetics modeling is hindered by an inadequate understanding of the free-radical chemistry that is strongly coupled to the NO/sub x/ cycles, and that the free-radical (HO/sub 2/, RO/sub 2/, O/sub H/) concentrations should be measured in real time so that instantaneous rates may be determined for SO/sub 2/ oxidation.

• OSTI ID: 6759185
• Report Number(s): CONF-790115-
• Conference Information: Journal Name: Ann. N.Y. Acad. Sci.; (United States)
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOLS
AIR POLLUTION
ATMOSPHERIC CHEMISTRY
CHALCOGENIDES
CHEMISTRY
COLLOIDS
DISPERSIONS
ENVIRONMENTAL TRANSPORT
GREAT LAKES
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXIDES
LAKE MICHIGAN
LAKES
LIGHT SCATTERING
MASS TRANSFER
NITRATES
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
OZONE
PLUMES
POLLUTION
SCATTERING
SOLS
SULFATES
SULFUR COMPOUNDS
SULFUR OXIDES
SURFACE WATERS
TRACE AMOUNTS
URBAN AREAS