Air Quality Report
Issue Date: 09/10/2016
Gap Fire – Klamath National Forest Prepared by: Ariane
Sarzotti and Tomas Gonzalez
Forecast
conditions represent impacts from smoke.
Contributions from ozone and other pollutants are not reflected.
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Fire Information: Fire is approximately 32,224 acres with a
growth of 560 acres since yesterday and 85% contained. No additional perimeter fire growth occurred;
growth is all interior acres within the control lines. Islands of unburned fuel within the
perimeter will continue to burn. On
all sides of the fire, crews are working on mop up and patrol of fire lines
where safe to do so. A reduction of
smoke is expected as the interior islands of unburned fuel get consumed. Weather and Smoke Information: High pressure will lead
to the hottest and driest day of the week. Humidity values will drop into the single
digits to mid-teens over most of the valley locations. Ridgetop winds will be northeast to east
3-6 miles per hour (mph) in the morning, then northwest 3-7 mph in the
afternoon. The North Coast area may
see air quality degrade up to Unhealthy for
Sensitive Groups (USG) smoke levels in locations ranging from Klamath, Weitchpec, and Eureka continuing
to the south. Hoopa and Weitchpec are expected to see (USG) conditions today with elevated
concentrations in the afternoon to early evening. Redding/Anderson,
Oak Knoll, Seiad, Happy Camp, Fort Jones and Orleans are expected to see Moderate conditions with possible elevated
concentrations in the afternoon and evening with the exception of Redding/Anderson and Happy Camp. They may see elevated concentrations in the
morning. Grants Pass, Medford,
Ashland, Klamath Falls, Red Bluff, Yreka, and Weed are expected to see Good conditions.
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Particulate Matter (PM 2.5) Impacts
from the Gap Fire
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Site
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Observed
Midnight-Midnight
09/09/16
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Forecast
09/10/16
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Outlook
09/11/16
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Worst
Time of Day Impacts
AQI and Period
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Grants Pass
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Good
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Good
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Good
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May see hazy skies in the evening and overnight.
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Medford/ Ashland
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Good
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Good
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Good
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May see hazy skies in the evening and overnight.
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Klamath Falls
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Good
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Good
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Good
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May see hazy skies in the evening and overnight.
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Oak Knoll RS
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Good
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Moderate
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Moderate
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Expect elevated concentrations in the afternoon
and evening.
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Seiad
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Moderate
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Moderate
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Moderate
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Expect elevated concentrations in the afternoon.
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Happy Camp
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Good
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Moderate
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Moderate
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Expect elevated concentrations in the morning.
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Yreka
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Good
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Good
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Good
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Expect elevated concentrations in the afternoon.
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Fort Jones
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Good
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Moderate
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USG
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Expect elevated concentrations in the late
afternoon and evening.
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Orleans
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Moderate
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Moderate
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Moderate
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Expect elevated concentrations in the afternoon.
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Weitchpec
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Moderate
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USG
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USG
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Expect elevated concentrations in the afternoon.
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Hoopa
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Good
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USG
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USG
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Weed
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Good
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Good
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Good
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May see hazy skies in the evening and overnight.
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Redding/Anderson
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Moderate
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Moderate
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Moderate
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Expect elevated concentrations in the morning.
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Red Bluff
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Good
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Good
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Good
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Expect elevated concentrations in the afternoon.
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Colors displayed above correspond
roughly with the AQI chart below.
Conditions may change quickly, these projections are based on
anticipated weather and fire activity.
Sensitive groups including individuals with Asthma, lung or heart
disease, children, older adults, and pregnant women should take precautions
to avoid exposure to smoke. If you feel as though you are having health
effects from smoke see your doctor or health professional as needed. In some cases your eyes are your
best tools, if it is smoky outside you are being impacted. Use caution when
driving in or around smoky areas.
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AQI Index
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Actions to Protect Yourself
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Good
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None
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Moderate
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Unusually sensitive people should
consider reducing prolonged or heavy outdoor exertion.
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Unhealthy for Sensitive Groups - USG
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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
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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
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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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Hazardous
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The following groups should remain
indoors and keep activity levels low: People with heart or lung disease;
children and older adults. Everyone else should avoid prolonged or heavy
exertion
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