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36 Pit Fire
UPDATE - Air Quality Report for 9/20/14 evening
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Transport winds for smoke at the 36
Pit Fire were more southerly today than expected, pushing the plume to the
north, but maintaining elevation so that few areas experienced poor air
quality today, although there is some ash fallout underneath the plume. Once fire activity decreases with cooler
temperatures tonight, we expect to see higher smoke impacts in the southwest
through northwest drainages on the surrounding the fire. Winds should become southwesterly around
mid-day Sunday, starting a clearing trend which will continue on Monday into
Tuesday. Still expecting wetter
conditions for later in the week.
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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)
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Site
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Saturday Evening
Sept 20, 2014
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Sunday
Sept 21, 2014
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Sunday night
Sept 21, 2014
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Monday Outlook
Sept 22, 2014
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Estacada
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Good to Moderate late
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Unhealthy AM
Moderate
PM
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Moderate
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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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Moderate
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Moderate
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Moderate
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Molalla
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Good early
Moderate late
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USG AM Moderate PM
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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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