• 2020-12-05 00:00

    The Relationship Between Flight Traffic, Ultrafine Particles and Noise from the Seattle Aircraft Air and Noise Study

    Edmund Seto, Elena Austin, Jianbang Xiang, Jeffry Shirai, Tim Gould, Timothy Larson Washington Environmental Health Disparities Map https://fortress.wa.gov/doh/wtn/WTNIBL/ This map ranks areas in red that are more impacted by cumulative environmental hazards. Many parts of Beacon Hill and other South King County communities have rankings in the red, and are impacted by cumulative hazards. NOISE Sea-Tac Airport Noise Impacts http://www.airportsites.net/SEA-Part150/documents/final/e-Chapter-3_Noise%20Analysis.pdf DNL 65 dBA Noise exposures are associated with human health effects > Cardiovascular effects > Sleep disturbance > Annoyance > Impaired children’s learning FAA 14 CFR Part 150 Analysis (2013) for Sea-Tac includes: > A model of noise contours attributable to flights > Measured noise, only looking at levels >60 dB that are >3 secs, correlated with flights > A 65 dB noise contour is considered a threshold for incompatible residential land use without mitigation. > But this 65 dB threshold is supposed to be for “cumulative noise” – noise from all sources. http://www.airportsites.net/SEA-Part150/documents/final/e-Chapter-3_Noise%20Analysis.pdf Beacon Hill Seattle Noise Study Video of noise from flyover Particulate Air Pollution micron is 1000 nanometers. So a UFP is <0.1 microns PM2.5 Measurements at Seattle Beacon Hill Site by Puget Sound Clean Air Agency Federal standard primary and secondary 24 hr μg/m3 98th percentile, averaged over 3 years primary 1 year 12.0 μg/m3 annual mean, averaged over 3 years Despite not exceeding standard, still ranks 10 on the Environmental Health Disparities Map, indicating that historic PM levels in this area are among the highest concentrations observed in the state. PM2.5 Measurements at Seattle Beacon…