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36 Pit Fire, Sunday PM Update

36 Pit Fire
Sunday PM Update - Air Quality Report for 9/21/14
Light and variable winds have characterized this afternoon, as the projected southwest winds have yet to develop.  Consequently, much of today’s smoke and associated air quality impacts are affecting only the central, eastern and southeastern portions of Clackamas County.  Continued light winds Sunday night should result in the highest impacts staying within 10-15 miles of the 36 Pit Fire, as well as down the Clackamas River valley.  We see no reason to modify the forecast table below.  Monday humidities should increase, with less smoke produced but remaining closer to the ground.  Still expecting wetter conditions for later in the week.
36 Pit Fire Report (prepared by Mike Broughton/Janice Peterson, Air Resource Advisors)­­­­

Air Quality Outlook (Particulate Matter less than 2.5 µm in diameter)
Site
Sunday
Afternoon
Sept 21, 2014
Sunday night
Sept 21, 2014
Monday
Sept 22, 2014
Tuesday Outlook
Sept 23, 2014
Estacada
Moderate
Moderate early USG late
USG AM
Moderate PM
USG AM
Good PM
Hwy 26 Corridor
(Sandy to Rhododendron)
Moderate becoming  USG
Moderate
Moderate
Moderate
Molalla
Good

Good
Good
Good
Willamette Valley
Good (some smoke aloft)
Good
Good
Good

AQI Index (µg/m3)
Potential Health Impacts
Actions to Protect Yourself
Good (0-12)
Air quality is satisfactory and poses little or no health risk.
None

Moderate (13-35)
Air quality is acceptable for most. There may be moderate health concern for a small number of sensitive people.
Unusually sensitive people should consider reducing prolonged or heavy outdoor exertion.
Unhealthy for Sensitive Groups (36-55)
Members of sensitive groups may experience health effects. The general public is not likely to be affected.
People with heart or lung disease, children and older adults should reduce prolonged or heavy outdoor exertion.  Everyone else should limit prolonged or heavy exertion.
Unhealthy
(56-150)
Everyone may begin to experience more serious health effects.
The following groups should avoid all physical outdoor activity: People with heart or lung disease, children and older adults.  Everyone else should avoid prolonged or heavy exertion.
Very Unhealthy
(151-250)
Triggers a health alert, meaning everyone may experience more serious health effects
Everyone should avoid any outdoor exertion; people with respiratory or heart disease, the elderly and children should remain indoors.
For more information see the Oregon Smoke blog: http://oregonsmoke.blogspot.com
Air Quality data can be viewed at: http://www.deq.state.or.us/aqi/index.aspx