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 Mt. Bachelor Observatory : 3 new Mt. Bachelor Observatory papers submitted
Posted on 2015/8/27 12:27:23

Jaffe Group members are submitting 3 new papers for publication. The papers are:

- Particulate matter, ozone, and nitrogen species in aged wildfire plumes observed at the Mount Bachelor Observatory, a high elevation site in the Pacific Northwest by Nicole Wigder et al.

- Carbon dioxide in the free troposphere and boundary layer at the Mt. Bachelor Observatory by Crystal McClure et al.

- Interannual variability in background ozone and its relationship to surface ozone in the western U.S. by Pao Baylon et al.

 Airborne Research : New paper on mercury emissions from coal-fired power plants
Posted on 2015/8/20 14:20:00

Coal-fired power plants are estimated to account for most of the mercury (Hg) emitted by stationary combustion sources. A new paper by Jesse Ambrose et al., published in Environmental Science & Technology, compared the observed total Hg enhancement ratios (ERs) for 6 coal-fired power plants with Hg emission ratios (EmRs) from the National Emissions Inventory (NEI) and the Toxics Release Inventory (TRI). Their results demonstrate that both the 2011 NEI and the 2013 TRI data tend to be biased low compared to measured values.

They have two recommendations based on their research:
- "The Hg inventories can be improved by targeting CFPPs for which the NEI- and TRI-based EmRs have significant disagreements."
- "Future versions of the Hg inventories should provide greater traceability and uncertainty estimates."

This research was carried out over the southeastern U.S. in 2013 aboard the National Science Foundation's C-130 research aircraft as part of the Nitrogen, Oxidants, Mercury, and Aerosol Distributions, Sources, and Sinks (NOMADSS) experiment. Mercury measurements were made using the University of Washington's Detector for Oxidized Hg Species (DOHGS).


Find the full paper here.
Read more about NOMADSS here.

 Group News : Lynne Gratz accepts position at Colorado College
Posted on 2015/7/28 16:30:00

Colorado College will be the new home of Dr. Lynne Gratz, Jaffe Group post-doctoral researcher. Lynne begins this fall as Assistant Professor of Environmental Science. She will be developing an active research program with undergraduate Environmental Science students, as well as teaching courses on topics such as climate change, energy and thermodynamics and, of course, atmospheric science.

Lynne's research in the Jaffe Group focused on projects such as the Nitrogen, Oxidants, Mercury, and Aerosol Distributions, Sources, and Sinks (NOMADSS) aircraft field campaign in the southeastern U.S. and analyzing 10 years of Mt. Bachelor Observatory data to identify long-term ozone and CO trends.
To read more about NOMADSS, click here.
To read Lynne's paper on springtime ozone and CO trends at MBO, click here.

On reflecting on her time in the group, Lynne shared these thoughts: "I can say that I am extremely grateful to have been a member of the Jaffe research group for nearly three years. Not only was I able to participate in a very exciting aircraft campaign, through which I developed a number of new research collaborations and friendships, but I was able to work with one of the top atmospheric chemistry research groups around. I learned so much from my colleagues at UW-Bothell and hope that we will have the opportunity to continue collaborating in the future."

We are sad to say farewell to Lynne but are very excited for her as she begins this exciting new opportunity.

 Group News : Celebrating Jon's wedding
Posted on 2015/7/21 15:00:00


On July 11, 2015, we shared in the celebration of the wedding of Jonathan Hee, Jaffe Group member, and his husband, Joel Hughes.

Congratulations, Jon and Joel!











Above: Back row--Pao Baylon, Jesse Ambrose, Dan Jaffe, Crystal McClure, Joel, Jon,
Angela Angelevska, and Lynne Gratz. Front row--Honglian Gao.

 Group News : Welcome to James Laing, our new postdoc!
Posted on 2015/7/20 15:30:00


The Jaffe Group welcomes Dr. James Laing, a new postdoctoral research associate. James completed his graduate work in 2014 at Clarkson University in northern New York. His Master's work focused on the emission characteristics of high efficiency wood boilers using different types of woody biomass. For his PhD, he studied the long-term chemical composition of the Finnish Arctic aerosol. His research in the Jaffe Group will focus on particle size distribution, aerosol scattering and aerosol absorption measurements at Mt. Bachelor Observatory during forest fire plumes.

In his free time, James can be found outdoors, whether he's skiing, rock climbing, mountain biking, backpacking or camping with his dog. He's excited about the accessibility to bodies of water that we enjoy here in Seattle and looks forward to exploring the national forests and parks in the Pacific Northwest and British Columbia.


Left: James in Denali National Park

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 Jaffe Group in the News

How an emission of hydrogen sulfide from Shell's refinery drifted over the Swinomish Reservation
The Stranger, June 12, 2015

Tiny particles delay study of coal port proposal
Crosscut.com, March 19, 2015

Crowdfunding goal met for Bellingham coal train air-pollution study
Bellingham Herald, December, 5, 2014

UW professor seeks money to study pollution from coal trains in Whatcom County
Bellingham Herald, November 14, 2014

Lacking Funding, Some Scientists Turn to the Crowd
Science Friday, November 14, 2014

Importing air pollution from China
CBC, September 21, 2014

China blamed for U.S. ozone
Science, September 12, 2014

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

Mercury pollution: With pact's completion, the real work begins
Science, September 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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