Aerosol, trace elements and visibility measurements in mountainous terrain. [Relationships between aerosols, trace elements, and visibility in mountainous terrain and air pollutants from industrial, urban, agricultural, and transportation sources] [electronic resource].
- Columbus, Ohio : Battelle Memorial Institute, 1979. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- Pages: 10 : digital, PDF file
- Additional Creators:
- Battelle Memorial Institute and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- A report is presented on an initial effort to collect data on the relationships between aerosols, trace elements, and visibility in mountainous terrain and air pollutants from existing industrial, urban, agricultural and transportation sources in the Pacific Northwest states of Washington, Oregon, and Idaho. Data were obtained by airborne instruments. Twelve samping flights provided data on scattering extinction coefficient, trace elements, sulfate, and ozone during relatively good (approx. 25 km) prevailing visibility conditions. Over 80% of the sample flights indicated that the meteorological range was 20 km or more. Four or five of the sampling flights indicated the presence of visibility reducing haze. Relatively higher concentrations of certain crustal and anthropogenic trace elements and sulfate (associated with high relative humidities) resulted in degradation of meteorological range in the foothills of Cascades, Snoqualmie Pass and Kittitas Valley and Columbia River Gorge. These 12 sampling flights are not representative of the wide range of visual conditions that can exist in mountainous regions.
- Published through SciTech Connect., 01/01/1979., "pnl-sa-7565", " conf-790445-7", 19. annual meeting of the institute of environmental sciences, Seattle, WA, USA, 29 Apr 1979., and Orgill, M M; Laulainen, N S; Drewes, D R; Lee, R N.
- Funding Information:
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