Part 5 The Environment

The consulting firm of Environmental Systems Laboratories, Inc. conducted the study to collect, analyze and predict air pollution elements at and around Sea-Tac Airport. Specific operational and land use alternatives were to be recommended to minimize the impact of aircraft operations on air quality. Existing air quality for the Airport passenger terminal and vicinity was calculated to identify pollutant levels of particulates, carbon monoxide, hydrocarbons, nitrogen oxides and oxidants. Predicted air quality utilized aviation forecasts and community development plans to present the "most probably" and "worst case" conditions. The Puget Sound Air Pollution Control Agency (PSAPCA) was the only source for historical records for air quality data about the study area . Their three stations are located in Des Moines, Me Micken Heights, and Tukwila. The data reflected a general high purity of air quality. Because of the predominate wind patterns, it is not expected that significant amount of pollutants would be measured at the PSAPCA monitoring sites. For this study, the Consultant used an air monitoring van located at sites near the Airport during June and September of 1973, and February 1974. The three sites are shown on the following map as 1, 2 and 3. The three PSAPCA sites are 5, 6, and 7 . Also, air samples in the terminal area, site 4, and the surrounding community were analyzed for carbon monoxide. Sites 1 and were chosen as areas of major impact based on the north- south prevailing winds, aircraft movements, and areas of population . Pursuant…

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PSCAA Advisory Council Meeting Agenda
Add to CalendarMWednesday Mar 11, 9:00am - 11:35am
1904 3rd Avenue, Suite 105, Seattle, WA 98101
Call to order – Roll Call – Quorum Established – Land Acknowledgement We would like to acknowledge that our Agency operates in four present-day counties, which are the traditional lands of the Coast Salish people, past and present. This acknowledgement does not take the place of authentic relationships with indigenous communities in our jurisdiction and [...]