The 1997 Southern California ozone study-NARSTO: Aerosol program and radiation study
- California Air Resources Board, Sacramento, CA (United States)
- Aerosol Dynamics, Inc., Berkeley, CA (United States)
- Univ. of California, Riverside, CA (United States). Dept. of Chemistry
- EPRI, Palo Alto, CA (United States). Environment Div.
The 1997 Southern California Ozone Study-North American Research Strategy for Tropospheric Ozone (SCOS97-NARSTO) was an extensive monitoring study conducted from June 16 through October 15, 1997. The study goals were to provide aerometric and emission databases to support photochemical air quality simulation model applications for representing urban- and regional-scale ozone episodes in southern California. In order to better understand interactions among ozone, particles, and ultraviolet radiation in California`s South Coast Air Basin (SoCAB), the SCOS97-NARSTO Aerosol Program and Radiation Study was implemented from August 16 to September 29, 1997. Six studies were coordinated with each other and with the ozone study. Fourteen groups of researchers deployed advanced continuous and filter-based aerosol measurement equipment at surface sites, an array of solar radiometers, and an aircraft instrumented with advanced aerosol analyzers. Preliminary results from a real-time single-particle analyzer for August 22, 1997 suggest a link between high ozone and high fine organic aerosol levels. Further data reporting and interpretation of measurements will come from the various participants over the next year, culminating in a SCOS97-NARSTO Data Analysis Conference during the summer of 1999. These studies should help to provide an understanding of the origins and processing of primary (directly emitted) particles and the chemical processes that convert gases into secondary particles. From this one should be able to determine how strongly ozone control programs will affect aerosol concentrations in the SoCAB and quantify the effects of aerosols on ozone formation, especially with regard to the new national 24-hour-average PM2.5 and 8-hour-average ozone standards.
- OSTI ID:
- 362011
- Report Number(s):
- CONF-980632--
- Country of Publication:
- United States
- Language:
- English
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