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 Mt. Bachelor Observatory : Aerobiology workshop organized by Jaffe Group
Posted on 2017/5/11 15:50:00

The Jaffe Group (specifically, Dan and Dee Ann) along with Andrew C. Schuerger of the University of Florida, Space Life Sciences Lab, organized a NASA-funded workshop in Bend, Oregon, at the beginning of May. This workshop gathered researchers from several universities and agencies to discuss a future experiment in "Aerobiology." This is the study of the transport and biology of microbes in the atmosphere. Researchers plan to use Mt. Bachelor as a key sampling location to study the long-range transport of microbes in the global atmosphere. David Smith, now at NASA Ames Research Center, was one of the workshop participants. He is a UW alum (PhD Biology) and previously did ground-breaking work on aerobiology at Mt. Bachelor Observatory (see publications in 2011-2013).

In addition to PI Andrew Schuerger, David Smith, and Dan Jaffe, other participants were Co-PI Dale W. Griffin (US Geological Survey), Susannah M. Burrows (Pacific Northwest National Laboratory), Brent C. Christner (University of Florida), Cristina Gonzalez-Martin (University of La Laguna, Tenerife, Spain), Erin K. Lipp (University of Georgia), David G. Schmale (Virginia Tech), Boris Wawrik (University of Oklahoma), and Hongbin Yu (University of Maryland and NASA Goddard Space Flight Center).

Look for a future project studying microbes in the sky!

 Mt. Bachelor Observatory : The most unusual meteorological event in decades leads to high ozone
Posted on 2017/2/28 11:20:00

In their new paper, Dan Jaffe and Lei Zhang describe what might be the most unusual meteorological event in decades--a very unusual climate pattern that caused elevated ozone levels in Washington, Oregon, western Utah, and northern California during June 2015. Published in Geophysical Research Letters, a journal of the American Geophysical Union, their research observed that warm temperatures, low cloud cover, and calm air led to extremely high ozone measurements. These elevated measurements were recorded at Mount Bachelor Observatory (MBO) and at monitoring stations around the western US. In fact, the June 2015 measurements were the highest ever recorded at MBO since it began operation in 2004. The high ozone concentrations negatively impacted air quality across the western US, especially in Salt Lake City and Sacramento, which recorded several days of ozone levels above the federal limit set by the Environmental Protection Agency.

It is generally understood that warmer temperatures favor ozone production. However, this study suggests that broader climate patterns also play a role in air quality and human health. “Our environmental laws need to be written with an understanding that there’s a lot of variability from one year to the next, and with an understanding of the long-term path of where we’re heading under climate change,” Jaffe said. “This work helps us understand the link between climate variability and air quality, and it can give us an idea of what to expect as our planet continues to warm.”

Read more on UW Today

Read more on KUOW

Read the full paper in Geophysical Research Letters

Caption: Data showing large changes in ozone (O3) for June 2015. (a) Average of all ozone data from MBO for June for 2004–2015, (b) June 2015 mean ozone measurements from EPA Air Quality System (AQS) stations, and (c) average of June ozone measurements for previous 5 years. In Figure 1b a star is used to show location of the MBO and EPA AQS sites are shown with dots.

 Group News : 16 papers published in 2016!
Posted on 2017/1/3 13:00:00
 Train Research : Public health group uses Jaffe Group data to argue against Oakland coal port
Posted on 2016/6/27 12:50:00

A California-based public health group conducted an independent study of the health and safety risks of transporting coal through a proposed coal export terminal located in Oakland. Data from Jaffe Group research into coal dust from trains played a key role in the study.

Click here to read more about the study.

 Mt. Bachelor Observatory : First global model of arsenic transport
Posted on 2016/6/23 11:50:00

The intercontinental transport of arsenic is the focus of a new paper published by Wai, Wu, Li, Jaffe and Perry in the journal Environmental Science & Technology. In this groundbreaking research, the authors developed the first global model of atmospheric arsenic in order to understand intercontinental transport of arsenic, an extremely toxic pollutant. They used the GEOS-Chem chemical transport model to simulate the concentrations of atmospheric arsenic and compared the model results with arsenic measurements from Mount Bachelor Observatory (MBO) and other sites. In order to reduce global arsenic pollution it is essential to understand its sources and transport. Wai et al. found that arsenic emissions from Asia are the dominant source of atmospheric arsenic in the Northern Hemisphere, contributing 38% of total arsenic deposition over North America. Arsenic measurements from the MBO figure prominently in the paper.

Click here to read the full paper.

The figure below shows arsenic concentrations measured at MBO for Spring 2011 compared with the results predicted from the model.

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 Jaffe Group in the News

A Blob In The Ocean Means More Ozone In The Air
KUOW, February 21, 2017

Pacific Ocean 'Blob' blamed for making summer air quality worse in 2015
KOMO News, February 15, 2017

Oh, no! The blob attacks the U.S. west coast – sort of
earth.com, February 15, 2017

Hundreds of Scientists Rally to Protect Climate Science
Live Science, December 13, 2016

Major coal train lawsuit settled by environmental groups, BNSF
Crosscut, November 15, 2016

Concerns about coal train dust in Spokane
KHQ NBC Right Now, July 26, 2016

BNSF invests $26 million in Pasco train facility
Tri-City Herald, May 28, 2016

Study: Coal trains pollute more than diesel trains into the Columbia Gorge
Oregon Public Broadcasting, November 23, 2015

Study documents health hazard from coal trains
Portland Tribune, November 23, 2015

Study: coal trains pollute twice as much as freight trains
East Oregonian, November 23, 2015

Coal export terminals: A source of jobs, or coal dust and climate change?
News Tribune (Tacoma), November 20, 2015

Oakland mulls challenge of coal shipments
Santa Cruz Sentinel, November 7, 2015

EPA releases a stricter, health-based smog standard
High Country News, October 1, 2015

Coal's health dangers spark local debate
Post News Group, July 24, 2015

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

Coal trains fire up UW chemist
Seattle Times, May 7, 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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