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36 Pit Fire
Air Quality Report and Outlook for 9/20/14
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Offshore winds from the east are
setting up for today, with warm dry conditions conducive to increased fire
activity and associated smoke production moving towards the west. This pattern will continue through this
evening before changing around to the west-southwest Sunday afternoon, which
will then push smoke back toward the Mt. Hood area. Air quality conditions will depend greatly
upon the actual intensity of the fire today and tomorrow, which has been
reasonably inactive the last few days.
Again, smoke impacts this
weekend are not expected to be anywhere near as bad as it was last weekend.
West to southwest winds are expected Monday-Tuesday
with a good potential of wet conditions for the latter half of the week. 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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Saturday Afternoon
Sept 20, 2014
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Saturday Evening
Sept 20, 2014
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Sunday
Sept 21, 2014
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Monday Outlook
Sept 22, 2014
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Estacada
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Good to Moderate
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Moderate
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USG AM
Moderate PM
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USG AM
Moderate PM
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Hwy 26 Corridor
(Sandy to Rhododendron)
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Good
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Good
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Moderate
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Moderate
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Molalla
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Moderate
to USG
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Moderate
to USG
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Moderate
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Moderate becoming Good
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Willamette Valley
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Moderate (visible smoke aloft)
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Moderate to USG
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Moderate
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Good
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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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