Wildfire Smoke Impact on Measured

Ozone Values part 2

19:38 - July 12, ’05 Smoke in the valley and plume re-building in the west

Looking West from Olympus Cove

19:53 - July 12, ’05 Smoke in the valley and plume re-building in the west

Looking West from Olympus Cove

20:08 - July 12, ’05 Smoke in the valley and plume re-building in the west

Looking West from Olympus Cove

20:23 - July 12, ’05 Smoke in the valley and plume re-building in the west

Looking West from Olympus Cove

20:38 - July 12, ’05 Smoke in the valley and plume re-building in the west

Looking West from Olympus Cove

20:53 - July 12, ’05 Smoke plume in the west

Looking West from Olympus Cove

21:08 - July 12, ’05 Smoke plume in the west

Looking West from Olympus Cove

21:23 - July 12, ’05 Smoke plume in the west

Looking West from Olympus Cove

21:38 - July 12, ’05 Smoke plume in the west

Looking West from Olympus Cove

21:53 - July 12, ’05 Heavy smoke plume up-wind west of the valley

Looking West from Olympus Cove

22:08 - July 12, ’05 Moonlight reflecting off smoke in the valley

Looking West from Olympus Cove

22:23 - July 12, ’05 Moonlight reflecting off smoke in the valley

Looking West from Olympus Cove

Analysis• Fourth order polynomial trend-lines produced from the 1

hour ozone data clearly show the influence of the smoke plume on the measured ozone values as it moves into the Wasatch Front where it resided in the summertime inversion

• These trend-lines can be seen on the 1 hour ozone charts indicating movement of the elevated ozone from Davis County to Utah County.

• Analysis of the one hour ozone data indicates that the smoke functioned mainly as added precursor for ozone formation.

• Ozone at the urban monitors did go to zero during the nighttime hours.

Smoke influence at the Beach Monitor

• Back trajectories indicate that the air mass influencing the Beach monitor passed directly over the Ditto Fire on July 12 and 13.

• The high 8 hr O3 levels are not coupled with the daily high temperatures, indicating that the O3 was influence by other factors such as wildfire smoke.

• A fourth order polynomial trend line included on following chart of one hour ozone values reflects the influence of smoke on the monitor.

Beach Monitor - 1 Hr O3

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Beach #4 1 Hr Value 1 Hr Avg. Std. Poly. (Beach #4 1 Hr Value)

Beach 050712 17mst

Beach 050712 20mst

Beach 050713 17mst

Beach Monitor - Daily Max 1 Hr O3 &

Max. Daily Temp

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O3 - ppb 1 Hr Std Temp -. °F

Smoke influence at the Bountiful Monitor

• Back trajectories indicate that the air mass influencing the Bountiful monitor passed directly over the Ditto Fire on July 12 and 13.

• The high 8 hr O3 levels are not coupled with the daily high temperatures, indicating that the O3 was influence by other factors such as wildfire smoke.

• A fourth order polynomial trendline included on the following chart of one hour ozone values reflects the influence of smoke on the monitor.

Bountiful Monitor - 1 Hr O3

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Bountiful #2 1 Hr Value 1 Hr Avg. Std. Poly. (Bountiful #2 1 Hr Value)

Bountiful 050712 17mst

Bountiful 050713 17mst

Bountiful 050713 20mst

Bountiful Monitor - Daily Max 1 Hr O3 &

Max. Daily Temp

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Smoke influence at the Highland Monitor

• Back trajectories indicate that the air mass influencing the Highland monitor moved southward into Utah County from the Salt Lake Valley on July 14.

• The air mass had been influence by the Ditto Fire on July 12 and 13 in the Salt Lake Valley.

• The high 8 hr O3 levels are not coupled with the daily high temperatures, indicating that the O3 was influence by other factors such as wildfire smoke.

• A fourth order polynomial trendline included on the following chart of one hour ozone values reflects the influence of smoke on the monitor.

Highland Monitor - 1 Hr O3

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Highland 1 Hr Value 1 Hr Avg. Std. Poly. (Highland 1 Hr Value)

Highland 050714 17mst

Highland 050715 17mst

Highland Monitor - Daily Max 1 Hr O3 &

Max. Daily Temp

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O3 - ppb 1 Hr Std Temp -. °F

Smoke influence at the North Provo Monitor

• Back trajectories indicate that the air mass influencing the North Provo monitor moved southward into Utah County from the Salt Lake Valley on July 14.

• The air mass had been influence by the Ditto Fire on July 12 and 13 in Salt Lake Valley.

• The high 8 hr O3 levels are not coupled with the daily high temperatures, indicating that the O3 was influence by other factors such as wildfire smoke.

• A fourth order polynomial trendline included on the following chart of one hour ozone values reflects the influence of smoke on the monitor.

North Provo - 1 Hr O3

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North Provo 1 Hr Value 1 Hr Avg. Std. Poly. (North Provo 1 Hr Value)

North Provo 050714 17mst

North Provo 050714 20mst

North Provo Monitor - Daily Max 1 Hr O3 &

Max. Daily Temp

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Smoke influence at the Spanish Fork Monitor

• Back trajectories indicate that the air mass influencing the Spanish Fork monitor moved southward into Utah County from the Salt Lake Valley on July 14.

• The air mass had been influence by the Ditto Fire on July 12 and 13 in Salt Lake Valley.

• The high 8 hr O3 levels are not coupled with the daily high temperatures, indicating that the O3 was influence by other factors such as wildfire smoke.

• A fourth order polynomial trendline included on the following chart of one hour ozone values reflects the influence of smoke on the monitor.

Spanish Fork Monitor - 1 Hr O3

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Spanish Fork 1 Hr Value 1 Hr Avg. Std. Poly. (Spanish Fork 1 Hr Value)

Spanish Fk. 050714 17mst

Spanish Fork Monitor - Daily Max 1 Hr O3 &

Max. Daily Temp

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PM Filter Analysis

• There was an upward trend in the PM2.5 and PM10 during the event.

• The elemental and organic carbon at the Hawthorne monitor went up during the time the smoke was introduced to the valley .

PM 2.5 - All Wasatch Front M onitors

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Spanish Fk. N. Provo Lindon Highland Herrim an Cottonwood W. Valley

Tooele Magna Hawthorne N. Salt Lake Bountiful Wash. Terr. Ogden

Harrisville Brigham City Hyrum Logan Am alga 24 Hr Std

PM 10 - All Wasatch Front M onitors

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N. Provo Lindon Cottonwood Hawthorne Magna N. Salt Lake Ogden Logan 24 Hr Std

% Elemental and Organic Carbon of the Total PM2.5 MassHawthorne MonitorJuly 9, 12, 15, 2005

7.84 8.75 8.43

53.10

61.46 60.32

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Elemental Carbon Organic Carbon

11:55am MST - July 16, 2005 After the Event

DITTO FIRE

“Choose Clean Air” Alert System

• During the summer months, the Utah Division of Air Quality calls a “Choose Clean Air” day through the news media and over the internet when elevated concentrations of ground-level ozone are forecast. We ask people to reduce driving and other polluting activities, particularly from 2- 8 p.m. during May through September when the highest ozone concentrations usually occur.

Example of a UDAQ Choose Clean Air Web Page

Example of a UDAQ Choose Clean Air Web Page

Example of the UDAQ Utah Air Qulality Index Web Page

• http://www.airquality.utah.gov/

http://www.airquality.utah.gov/

Wildfire Smoke Impact Forecasting• As demonstrated on pages 3 and 5 of this

presentation the Utah Interagency Smoke Program Coordinator notifies UDAQ of expected impacts of smoke plumes in Utah when wildfires occur.

• The UDAQ Air Monitoring Center includes reports from the Utah Interagency Smoke Program Coordinator when evaluating the issuance of a “Choose Clean Air” alert.

• The public can get information on health impacts from wildfire smoke at the UDAQ website http://www.cleanair.utah.gov/fire.htm

http://www.cleanair.utah.gov/fire.htm

Slide Number 119:38 - July 12, ’05� Smoke in the valley and plume re-building in the west Looking West from Olympus Cove19:53 - July 12, ’05� Smoke in the valley and plume re-building in the west �Looking West from Olympus Cove20:08 - July 12, ’05� Smoke in the valley and plume re-building in the west �Looking West from Olympus Cove20:23 - July 12, ’05� Smoke in the valley and plume re-building in the west �Looking West from Olympus Cove20:38 - July 12, ’05� Smoke in the valley and plume re-building in the west �Looking West from Olympus Cove20:53 - July 12, ’05� Smoke plume in the west �Looking West from Olympus Cove21:08 - July 12, ’05� Smoke plume in the west �Looking West from Olympus Cove21:23 - July 12, ’05� Smoke plume in the west �Looking West from Olympus Cove21:38 - July 12, ’05� Smoke plume in the west �Looking West from Olympus Cove21:53 - July 12, ’05� Heavy smoke plume up-wind west of the valley �Looking West from Olympus Cove22:08 - July 12, ’05� Moonlight reflecting off smoke in the valley �Looking West from Olympus Cove22:23 - July 12, ’05� Moonlight reflecting off smoke in the valley �Looking West from Olympus CoveAnalysisSmoke influence at the Beach MonitorBeach Monitor - 1 Hr O3Beach 050712 17mstBeach 050712 20mstBeach 050713 17mstBeach Monitor - Daily Max 1 Hr O3�& �Max. Daily TempSmoke influence at the Bountiful MonitorBountiful Monitor - 1 Hr O3Bountiful 050712 17mst Bountiful 050713 17mst Bountiful 050713 20mstBountiful Monitor - Daily Max 1 Hr O3�& �Max. Daily TempSmoke influence at the Highland MonitorHighland Monitor - 1 Hr O3Highland 050714 17mstHighland 050715 17mstHighland Monitor - Daily Max 1 Hr O3�& �Max. Daily TempSmoke influence at the North Provo MonitorNorth Provo - 1 Hr O3North Provo 050714 17mstNorth Provo 050714 20mstNorth Provo Monitor - Daily Max 1 Hr O3�& �Max. Daily TempSmoke influence at the Spanish Fork MonitorSpanish Fork Monitor - 1 Hr O3Spanish Fk. 050714 17mstSpanish Fork Monitor - Daily Max 1 Hr O3�& �Max. Daily TempPM Filter AnalysisSlide Number 42Slide Number 43Slide Number 4411:55am MST - July 16, 2005�After the Event“Choose Clean Air” Alert SystemExample of a UDAQ Choose Clean Air Web PageExample of a UDAQ Choose Clean Air Web PageExample of the UDAQ Utah Air Qulality Index Web PageWildfire Smoke Impact ForecastingSlide Number 51