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Adjusting wind instrument calibrations at MBO
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 Group News : Jaffe Group publishes new papers on aerosol, ozone, and mercury
Posted on 2014/8/13 14:20:00

The Jaffe Group has published three new papers in 2014:

1. Timonen, H., Jaffe, D. A., Wigder, N., Hee, J., Gao, H., Pitzman, L., and Cary, R. A., 2014. Sources of carbonaceous aerosol in the free troposphere. Atmospheric Environment 92, 146-153, doi: 10.1016/j.atmosenv.2014.04.014.
Find the full article here.

2. Gratz, L. E., Jaffe, D. A., and Hee, J. R., 2014. Causes of increasing ozone and decreasing carbon monoxide in springtime at the Mt. Bachelor Observatory from 2004 to 2013. Atmospheric Environment, doi: 10.1016/j.atmosenv.2014.05.076.
Find the full article here.

3. Jaffe, D. A., et al., 2014. Progress on understanding atmospheric mercury hampered by uncertain measurements. Environmental Science & Technology 48, 7204-7206, doi: 10.1021/es5026432.
Find the full article here.

In the second paper, Gratz, Jaffe, and Hee examined 10-year trends in springtime ozone (O3) and CO at the Mt. Bachelor Observatory. They found that the median O3 increased significantly from 2004 to 2013, while the median CO decreased. They attributed the rise in springtime O3 to the increase in O3 precursor emissions in Asia and long-range transport to the western United States. These trends suggest that emissions from East Asia likely impact air quality in the western U.S.


Springtime ozone (O3) mixing ratios at MBO, 2004-2013
5th percentile (green circles), median (blue diamonds),
and 95th percentile (red triangles) springtime O3 mixing ratios.
The median and 95th percentile springtime O3 increased significantly over the 10-year period.

Find the full article here.

 Group News :  Nicole Wigder passes her PhD defense
Posted on 2014/8/4 11:00:00

Hearty congratulations to Nicole Wigder on passing her defense for her PhD! Nicole successfully defended her dissertation, "Influence of Baseline Air Masses and Wildland Fires on Air Quality in the Western United States."

Nicole, we wish you unlimited success in your new job, but we will struggle to fill the huge hole you left behind.

 Mt. Bachelor Observatory : Pao Baylon presents at the NW Airquest annual meeting
Posted on 2014/7/29 14:50:00

At the annual NW Airquest meeting held in Boise in June, Pao gave a talk on wildfires and NOx and O3 production. His presentation, which used data from Mt. Bachelor Observatory, was very well received by the attendees. Well done, Pao!

 Group News : Dan Jaffe receives the Distinguished Research, Scholarship, and Creative Activity Award!
Posted on 2014/4/24 12:11:35

The University of Washington-Bothell has awarded Dr. Dan Jaffe the first annual Distinguished Research, Scholarship, and Creative Activity Award. This award recognizes Dan's contribution to his field and his significant impact on communities and the UW Bothell research environment. The award announcement clearly describes Dan's contribution: "Dan has consistently produced at the highest level and fully represents the values that faculty and students at the University of Washington Bothell have for research, scholarship, and creative activity."

Read about Dan's achievements in the award announcement.

 Airborne Research : Jaffe Group presents at SAS Data Workshop
Posted on 2014/4/24 11:33:29

Dan Jaffe, Jesse Ambrose, and Lynne Gratz gave presentations at the Southeast Atmosphere Study (SAS) Data Workshop in Boulder, Colorado, on March 31-April 2.

Dan's presentation was an overview of the Nitrogen, Oxidants, Mercury and Aerosol Distribution, Sources, and Sinks (NOMADSS) study, which was the National Science Foundation (NSF)-sponsored airborne research component of SAS. The NOMADSS observing platform was the NSF/National Center for Atmospheric Research (NCAR) C-130 research aircraft. The title of Dan's presentation was "Science goals, flight tracks and some prelim results from the NOMADSS campaign."

Jesse and Lynne each presented analyses based on measurements made onboard the C-130 with the University of Washington's aircraft mercury instrument--the Detector for Oxidized Mercury Species (DOHGS). The title of Jesse's presentation was "Quantifying mercury emissions from large point sources in the Southeastern U.S. during NOMADSS." Lynne's presentation was titled "Observations of enhanced reactive mercury in the free troposphere and mercury emissions from urban areas."

The primary NOMADSS mercury (Hg) science goals were (1) to characterize the regional scale Hg distribution and atmospheric chemistry and (2) to quantify emissions from large Hg point sources in the Southeastern U.S.

Learn more about the Southeast Atmosphere Study.
Learn more about the Jaffe Group's NOMADSS research.

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 Jaffe Group in the News

Crowdfunding science: A new piece of the research grant puzzle
Earth Magazine, July 27, 2014

Homes near rail lines face exposure to harmful emissions: study
The Vancouver Sun, March 23, 2014

Study a window into coal train air pollution
The Olympian, March 11, 2014

China may finally be taking air pollution seriously
The News Tribune, Tacoma, February 6, 2014

Coal-Hungry World Brings Tough Choices For Native Americans
Huffington Post, January 20, 2014

Worries in the Path of China's Air
The New York Times, December 25, 2013

New research from UW Bothell professor adds fuel to coal-train fight
The Seattle Times, November 5, 2013

Public Presentation on Diesel and Coal Train Findings
UW News, November 4, 2013
UWB Press Release, October 21, 2013

Pacific Northwest Weighs Environmental Risks of Cashing in on Coal Export Market
PBS (Video), August 2, 2013

Hazy days of summer: Southeast U.S. field work measures mercury, smog
UW Today, July 9, 2013

Smyrna airport site for project on nation's air pollution
Tennessean, June 23, 2013

What Coal-Train Dust Means For Human Health
KUOW Radio, March 11, 2013

US cities suffer impact of downwind Chinese air pollution
China Dialogue, January 17, 2013

Wind Riders
The Daily, January 9, 2013

Researcher finds life flying high above
Phys.Org, January 7, 2013

UW Researchers finding the high life
The Seattle Times, December 31, 2012

Big turnout expected for coal-transport project hearing
The Seattle Times, December 12, 2012

Siberian Smoke streaks Seattle Skylines
The Seattle Times, July 14 2012

Asian Emissions put US cities over O3 limit
Nature, March 05 2012

Mercury from the Sky
Decoded Science, December 20, 2011

Chinese pollution felt in US
The Alicia Patterson Foundation, 2011

Mercury in the Food Supply
The Guardian News, UK

Airborne Microbes
Environment 360, Yale
EOS, Transactions AGU, August 2011

Made in China: imported Air Pollution
Discover Magazine, April 2011

More on Japan radiation
Puget Sound Business Journal, Q&A with Dan Jaffe
KING 5 News, April 2011

U.S. radiation sensors show negligible readings
Seattle Times
KPLU NPR Radio
KIRO TV, March 2011

UW Scientist Tracks Airborne Mercury From China
KUOW Radio, October 2010

Asia-produced ozone making its way to U.S., study finds
McClatchy, February 2010

Ozone from Asia linked to levels in Western U.S. skies
Desert News, January 2010

Why Geologists Love Beer
Wired Science, December 2009

Forest Service Employees for Environmental Ethics
Made in China, April 2009

The Last Empire: China's Pollution Problem Goes Global
Mother Jones, January 2008

Coal dependency hits environment
Associated Press, Time Online, November 6, 2007

Asian pollutants found atop Mount Bachelor
Associated Press, The Statesman Journal (Salem, OR), July 16, 2007

Scientist Sees Bad Days Ahead for Gorge Air
The Oregonian, March 14, 2007

Jaffe Group Doctoral Candidate David Reidmiller gave testimony before the Washington State Senate
Joint Memorial 8000, February 22, 2007

Ill Wind: Asia's Pollution Crisis featured Jaffe Group airborne research
CNN, Spring 2006

China's mercury flushes into Oregon's rivers
The Oregonian, November 24, 2006

An import from Asia: Bad air
Seattle Times, April 21, 2006

Bad air drifts across Pacific
Tacoma News Tribune, Sept. 20, 2005

Keeping alert to the threats of environmental changes
The Seattle Times, June 1, 2005

Fiddling while Siberia burns: 'lungs of Europe' under threat from forest fires
The Independent, May 31, 2005

Air pollution from other countries drifts into USA
USA Today, March 13, 2005

Asia pumps out more mercury than previously thought
ES&T Online News, January 5, 2005


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