Three-dimensional pollutant gradient study: 1972--1973 program. Final report, Feb 1972--Jun 1974

Technical Report · Fri Nov 01 04:00:00 EST 1974

OSTI ID:7190533

Blumenthal, D L; Smith, T B; White, W H; Marsh, S L; Ensor, D S

Data on the 3-Dimensional distribution and transport of aerosols and gaseous pollutants in the South Coast (Los Angeles), San Joaquin Valley, and San Francisco Bay Air Basins were obtained and analyzed. Sampling flights were made in conjunction with ground level sampling. Meteorological data were obtained along with bscat, condensation nuclei, O3, NOx, CO, turbulence, temperature, and humidity data. Mixing layer structure and ventilation processes in the South Coast Basin, are shown along with episode conditions. Air pollution in this and other Air Basins is shown to be a regional problem where pollutants accumulate in a stagnant air mass and subsequently move downwind. The data demonstrate changes in the aerosol and gaseous pollutants as they age and indicate certain factors contributing to aerosol formation and growth. The structure of a few point source plumes was determined and showed the possible buoyant effect of roadways. The overnight stability of ozone at high concentrations in aged polluted air is documented. (GRA)

• Research Organization: Meteorology Research, Inc., Altadena, Calif. (USA)
• OSTI ID: 7190533
• Report Number(s): PB-241982; MRI-74-FR-1262
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOLS
AIR POLLUTION
CALIFORNIA
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
COLLOIDS
DATA
DISPERSIONS
EARTH ATMOSPHERE
EXHAUST GASES
GASEOUS WASTES
HYDROCARBONS
INFORMATION
METEOROLOGY
MONITORING
NITROGEN COMPOUNDS
NITROGEN OXIDES
NORTH AMERICA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
OZONE
PARTICLE SIZE
POLLUTION
SIZE
SMOG
SOLS
TURBULENCE
USA
WASTES
WESTERN REGION