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36 Pit Fire
Air Quality Report and Outlook for 9/19/14
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Friday will be a transition day from
the moist flow we have been experiencing over to a warmer, dry offshore
pattern for Saturday. Light winds
today will not disperse or transport smoke to any great extent, resulting in Moderate air quality
conditions close to the 36 Pit Fire and Good
air quality elsewhere. Winds will
become northerly overnight tonight, turning easterly on Saturday. Smoke will move south then west and will
become noticeable in Molalla and into the Willamette Valley, approaching Unhealthy for Sensitive Groups in some areas, although nowhere near as bad as it was
last weekend. Firefighters are
continuing the aggressive attack today in anticipation of tomorrow’s warmer,
drier conditions. Updates will be
issued any time there are changes from anticipated conditions.
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36 Pit Fire Report
(prepared by Mike Broughton, Air Resource Advisor)
Air Quality Outlook (Particulate
Matter less than 2.5 µm in diameter)
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Site
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Friday Afternoon
Sept 19, 2014
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Friday Evening
Sept 19, 2014
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Saturday
Sept 20, 2014
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Sunday Outlook
Sept 21, 2014
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Estacada
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Moderate
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Moderate
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Moderate
to USG AM
Good PM
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USG AM
Moderate PM
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Hwy 26 Corridor
(Sandy to Rhododendron)
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Moderate
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Moderate
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Good
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Good
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Molalla
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Good
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Good
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Moderate
to USG
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Moderate to USG
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Willamette Valley
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Good
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Good
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Moderate (visible smoke aloft)
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Moderate (visible smoke
aloft)
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AQI Index (µg/m3)
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Potential Health Impacts
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Actions to Protect Yourself
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Good (0-12)
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Air quality is satisfactory and poses little or no health
risk.
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None
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Moderate (13-35)
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Air quality is acceptable for most. There may be moderate
health concern for a small number of sensitive people.
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Unusually sensitive people should consider reducing prolonged
or heavy outdoor exertion.
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Unhealthy for Sensitive Groups (36-55)
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Members of sensitive groups may experience health
effects. The general public is not likely to be affected.
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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.
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Unhealthy
(56-150)
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Everyone may begin to experience more serious health effects.
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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.
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Very Unhealthy
(151-250)
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Triggers a health alert, meaning everyone may experience more
serious health effects
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Everyone should avoid any outdoor exertion; people with
respiratory or heart disease, the elderly and children should remain indoors.
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