Also, the display times (shown along the bottom of the graph) are in "Coordinated Universal Time" or UTC so you need to subtract 7 hours to get local time (Pacific Daylight Time). So for example, the peak reading from the instrument was recorded at 07:00 UTC which would translate to midnight last night local time.
The peak value was about 130 µg/m3 (micrograms of particulate matter per cubic meter of air). These readings certainly reveal smoky conditions in Entiat! More specific health warnings to follow as this new data is analysed by our experts. In the short term, please contact Chelan/Douglas Health District or a medical professional if you have specific concerns about heath effects from the smoke.