First Quarter, 1990: Sea-Tac Noise Hotline Calls per Month, 1986-1990

Sea tac noise hotline calls per month 1986 1990 q1 pdf

Notes

Line chart showing Sea-Tac Airport noise hotline call volume (in thousands) per month from 1986 through the first quarter of 1990. Data series plotted for each year: 1986, 1987, 1988, 1989, and 1990 (January–March only). Notable spike labeled ‘1987 Scatter Test’ reaching approximately 3.4 thousand calls in July 1987. Chart tracks seasonal patterns in noise complaint call volume across all twelve months.

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