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]

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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 ... continued below

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Pages: 10

Creation Information

Orgill, M M; Laulainen, N S; Drewes, D R & Lee, R N January 1, 1979.

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  • Pacific Northwest Laboratory
    Publisher Info: Battelle Pacific Northwest Labs., Richland, WA (USA)
    Place of Publication: Richland, Washington

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Description

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.

Physical Description

Pages: 10

Notes

Dep. NTIS, PC A02/MF A01.

Source

  • 19. annual meeting of the institute of environmental sciences, Seattle, WA, USA, 29 Apr 1979

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  • Report No.: PNL-SA-7565
  • Report No.: CONF-790445-7
  • Grant Number: EY-76-C-06-1830
  • Office of Scientific & Technical Information Report Number: 5735685
  • Archival Resource Key: ark:/67531/metadc1093985

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1979

Added to The UNT Digital Library

  • Feb. 10, 2018, 10:06 p.m.

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  • April 19, 2018, 6:45 p.m.

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Orgill, M M; Laulainen, N S; Drewes, D R & Lee, R N. 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], article, January 1, 1979; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc1093985/: accessed November 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.