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 Group News : Determining How Much Ozone Is Produced by Wildfires
Posted on 2014/2/25 11:40:00

Jaffe et al. developed a statistical model that allows them to predict how much ozone is produced by wildfires. They tested their model using data from fire smoke plumes measured in Reno and Salt Lake City. The wildfire smoke contributed 23% and 32% of the ozone measured in these urban areas, respectively. These results are important because ozone is regulated by the U.S. EPA and state agencies need to determine how much ozone is produced from urban emissions versus how much is produced from wildfires.

Read about their findings in a recently published article in Environmental Science & Technology.


Wildfire plume observed from the Jaffe Group's Mount
Bachelor Observatory near Bend, Oregon.
Photo credit: Jonathan Hee

 Group News : New Paper on Air Pollutants in Wildfire Smoke
Posted on 2014/2/24 11:50:00

In a recently published paper in Atmospheric Environment, Wigder, Jaffe, and Saketa report on their analysis of air pollutants in wildfire smoke plumes. They analyzed the amount of particulate matter (solid particles) and ozone in smoke plumes because these are regulated pollutants that can impact human health. During the first two days that smoke plumes are transported downwind from a fire, the amount of particulate matter increased significantly. More ozone was found in smoke plumes that were transported higher in the atmosphere than in lower-transported ones.

Find the full article here.


Locations of wildfires observed at Mount Bachelor
Observatory (MBO), 2004-2011

 Group News : New York Times Article on Air Pollution from China
Posted on 2014/2/10 12:10:00

Dan Jaffe was quoted in a New York Times article about air pollution reaching the United States from China. Read the article: Worries in the Path of China's Air.

 Train Research : Coal Train Research Presentation at Mobius Hall
Posted on 2013/11/4 13:10:00
Train Research

Come to UW Bothell campus tonight at 7:00 PM to see Dan Jaffe's presentation "Do Coal and Diesel Trains Make For Unhealthy Air?". The event will be held at Mobius Hall. For directions, see here.

Dr. Jaffe will be presenting field data that was gathered over the summer. There will be a Q&A session at the end. If you would like to find out more information on this important research, check out the APOLLO Research link.



 Group News : Five new group papers on O3, Mercury and PM
Posted on 2013/4/10 22:50:00

1. Timonen, H., Ambrose, J. L., and Jaffe, D. A.: Oxidation of elemental Hg in anthropogenic and marine airmasses, Atmos. Chem. Phys., 13, 2827-2836, doi:10.5194/acp-13-2827-2013, 2013.

http://www.atmos-chem-phys.net/13/2827/2013/acp-13-2827-2013.html

2. Ambrose J. L., Lyman S.N., Huang J., Gustin M.S. and Jaffe D.A. Fast Time Resolution Oxidized Mercury Measurements during the Reno Atmospheric Mercury Inter-comparison Experiment (RAMIX), Envir. Sci. Tech. DOI: 10.1021/es303916v, 2013.

http://pubs.acs.org/doi/abs/10.1021/es303916v

3. Finley B.D., Jaffe D.A., Call K., Lyman S., Gusin M., Peterson C., Miller M. and Lyman T. Development, testing, and deployment of an air sampling manifold for spiking elemental and oxidized mercury during the Reno Atmospheric Mercury Intercomparison Experiment (RAMIX)", Envir. Sci. Tech. DOI: 10.1021/es304185a, 2013.

http://pubs.acs.org/doi/abs/10.1021/es304185a

4. Gustin M.S, Huang J., Miller M.B., Peterson C., Jaffe D.A. Ambrose J., Finley B.D., Lyman S.N., Call K., Talbot R., Feddersen D,. Mao H., and Lindberg S.E. Do We Understand What the Mercury Speciation Instruments Are Actually Measuring? Results of RAMIX, Envir. Sci. Tech. DOI: 10.1021/es3039104, 2013.

http://pubs.acs.org/doi/abs/10.1021/es3039104

5. Wigder, N. L., D. Jaffe, F. L. Herron-Thorpe, and J. K. Vaughan. Influence of Daily Variations in Baseline Ozone on Urban Air Quality in the United States Pacific Northwest J. Geophys. Res., doi:10.1029/2012JD018738, 2012.

http://www.agu.org/pubs/crossref/pip/2012JD018738.shtml

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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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