Notes
Port of Seattle and FAA air quality monitoring studies at Sea-Tac Airport, conducted under a Memorandum of Agreement involving Port of Seattle, FAA, Washington State Department of Ecology, PSAPCA, and EPA. Documents carbon monoxide saturation study (December 1996–February 1997), oxides of nitrogen study (January 1998–June 1999) using passive NO2 samplers at 16 locations and Federal Reference Method samplers at Sea-Tac North and Tyee Valley Golf Course, PM10 particulate matter study (June 1998–June 1999) using FRM filter-based samplers and Nephelometer, and EPA National Air Toxics Monitoring Pilot Program sampling (February 2001–February 2002) for VOCs, carbonyls (acetaldehyde, formaldehyde), and TSP metals including chromium (1.65 ng/m3), manganese (7.86 ng/m3), and nickel (1.80 ng/m3). No NAAQS exceedances found for CO (highest 7.2 ppm at SR 518 and 1st Avenue), NO2 (highest 0.021 ppm vs. NAAQS of 0.053 ppm), or PM10. Related to Sea-Tac Master Plan Update 1996 EIS and third runway construction.