This 1970 U.S. Weather Bureau technical memorandum by Wallace R. Donaldson examines air pollution caused by jet aircraft operations at Seattle-Tacoma Airport. The report, published by the Environmental Science Services Administration's Western Region office, investigates the environmental impact of jet exhaust and emissions in the airport's vicinity. It serves as an early government study linking aircraft activity to local air quality concerns in the Seattle-Tacoma area.

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A Weather Bureau Technical Memorandum (WBTM WR 58) by Wallace R. Donaldson of the National Weather Service Office in Seattle-Tacoma, Washington, examining air pollution caused by jet aircraft at Seattle-Tacoma Airport. Published by the U.S. Department of Commerce, Environmental Science Services Administration, Weather Bureau, Western Region, in October 1970.

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As the source for federal transportation grants, the Puget Sound Regional Council was charged with developing a system to meet the growing need for commercial aviation. When the search for a second airport failed, they authorized the Port of Seattle to build the Third Runway, with a mandate to develop a noise abatement and mitigation program. In their effort to stop the Third Runway, the ACC argued over every detail of the Port's efforts--including property buyouts and sound insulation. The dispute was meant to be settled by a three member Expert Arbitration Panel. This is their final report. It finds 2-1, that the Port's program was insufficient in several respects. Despite that, funding for the Third Runway was approved by the PSRC, and the 'Port Package' program, proceeded largely unchanged. Expert Arbitration Panel's final decision finding that the Port of Seattle had not shown sufficient reduction in real on-the-ground noise impacts to satisfy noise reduction conditions required for approval of a third runway at Sea-Tac International Airport. The majority decision concluded the Port's noise abatement programs were insufficient despite being impressive in scope.

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