HomeMy WebLinkAboutEcology's AQ Monitoring DataStatewide Monitoring Network
N = 81
Kittitas County Monitoring Locations
Ellensburg Monitoring Site
Roof of Hal Holmes Center
Nephelometer
• Measures light scattering
• We convert to PM2.5 concentration
WA Air Quality Advisory (WAQA)
Category
PM2.5 Concentration
(µg/m3)
Health goal
(20 µg/m3)
National standard
(35 µg/m3)
*Unhealthy for sensitive groups
Heating Season Median
(10/01-3/31)
Off Season Median
(4/01-9/30)
98th Percentile
Ellensburg Median and 98th Percentile PM2.5 by Month and Year
2007 2008 2009 2010 2011 2012 2013 2014
Ellensburg – Cle Elum Comparison
What happens when we’re sleeping?
Ellensburg and Cle Elum Median PM2.5 by Hour