Archived news, 2015
12/02/15: Katie Redling, stable isotope technician and lab manager, receives 5 year service award from the University of Pittsburgh.
11/20/15: M.S. student Justin Coughlin publishes an awesome webpage! Check it out here.
11/18/15: Elliott lab seeking new PhD students!! See Opportunities for description of opportunities in our lab.
11/1/15: Dr. Elliott becomes a Science & Engineering Ambassador, a Pittsburgh-based program of the National Academy of Sciences and the National Academy of Engineering. Find out more here.
11/1/15: Lucy Rose publishes paper in Ecosystems, "Triple nitrate isotopes indicate differing nitrate source contributions to streams across a nitrogen saturate gradient". See Publications.
10/21/15: Justin Coughlin presents research at the 9th International Conference on Acid Rain in Rochester, NY. "Reactive nitrogen emissions from unconventional natural gas well pads and implications for regional NOx emission inventories"
10/21/15: Dr. Elliott gives a keynote address at the 9th International Conference on Acid Rain in Rochester, NY. "Emissions, Deposition, and Environmental Cycling of Atmospheric Nitrogen: An Isotope Perspective".
10/15/15: Dr. Elliott is an invited speaker and panelist for the Third Annual Kent State University Water Symposium. "Nutrient Contamination Sources in a Changing Climate".
9/1/15: PhD alum, Dave Felix ('12), becomes an Assistant Professor at Texas A&M University, Corpus Christie. He's actively recruiting M.S. and PhD students! You can find him here.
7/22/15. Troy Ferland defends his undergraduate thesis, "Multivariable testing of Ogawa nitrogen dioxide passive samplers in the greater Pittsburgh region".
6/20/15: Justin Coughlin attends SPATIAL workshop at the University of Utah.
5/1/15: Lab group welcomes new undergraduate laboratory assistants, Madeline Grey and Madeline Eelgrass.
4/16/15: Welcome Theodore Augustus Elliott Bain!
4/30/15: Dave Felix publishes paper on nitrate sources during Hurricane Irene in Atmospheric Environment. See Publications.
3/1/15: Zhongjie Yu earns a Graduate Fellowship from the Geological Society of America.
2/1/15: Lucy Rose publishes review paper in Water Resources Research stemming from U.S.-Japan workshop on catchment hydrology. "Drivers of Atmospheric Nitrate Processing in Forested Catchments". See Publications.
11/20/15: M.S. student Justin Coughlin publishes an awesome webpage! Check it out here.
11/18/15: Elliott lab seeking new PhD students!! See Opportunities for description of opportunities in our lab.
11/1/15: Dr. Elliott becomes a Science & Engineering Ambassador, a Pittsburgh-based program of the National Academy of Sciences and the National Academy of Engineering. Find out more here.
11/1/15: Lucy Rose publishes paper in Ecosystems, "Triple nitrate isotopes indicate differing nitrate source contributions to streams across a nitrogen saturate gradient". See Publications.
10/21/15: Justin Coughlin presents research at the 9th International Conference on Acid Rain in Rochester, NY. "Reactive nitrogen emissions from unconventional natural gas well pads and implications for regional NOx emission inventories"
10/21/15: Dr. Elliott gives a keynote address at the 9th International Conference on Acid Rain in Rochester, NY. "Emissions, Deposition, and Environmental Cycling of Atmospheric Nitrogen: An Isotope Perspective".
10/15/15: Dr. Elliott is an invited speaker and panelist for the Third Annual Kent State University Water Symposium. "Nutrient Contamination Sources in a Changing Climate".
9/1/15: PhD alum, Dave Felix ('12), becomes an Assistant Professor at Texas A&M University, Corpus Christie. He's actively recruiting M.S. and PhD students! You can find him here.
7/22/15. Troy Ferland defends his undergraduate thesis, "Multivariable testing of Ogawa nitrogen dioxide passive samplers in the greater Pittsburgh region".
6/20/15: Justin Coughlin attends SPATIAL workshop at the University of Utah.
5/1/15: Lab group welcomes new undergraduate laboratory assistants, Madeline Grey and Madeline Eelgrass.
4/16/15: Welcome Theodore Augustus Elliott Bain!
4/30/15: Dave Felix publishes paper on nitrate sources during Hurricane Irene in Atmospheric Environment. See Publications.
3/1/15: Zhongjie Yu earns a Graduate Fellowship from the Geological Society of America.
2/1/15: Lucy Rose publishes review paper in Water Resources Research stemming from U.S.-Japan workshop on catchment hydrology. "Drivers of Atmospheric Nitrate Processing in Forested Catchments". See Publications.
Archived news, 2014
12/15/14: EnergyNET team presents "Best Practices to Enhance Informal Geoscience Learning" at Fall AGU.
9/30/14: Former PhD student, Dave Felix, publishes two papers in Atmospheric Environment, "Examining the transport of ammonia emissions across landscapes using nitrogen isotope ratios" and "The isotopic composition of passively collected nitrogen dioxide emissions: Vehicle, soil and livestock source signatures". See Publications.
9/16/14: New paper published on urban nutrient contamination in Environmental Science & Technology, "Quantification of Nitrate Sources to an Urban Stream Using Dual Nitrate Isotopes". See Publications.
9/1/14: Dr. Elliott awarded promotion with tenure.
7/16/14: Lucy Rose successfully defends her dissertation!
5/15/14: Lucy Rose wins Best Student Presentation Award at the American Meteorological Society, Second Conference on Atmospheric Biogeosciences in Portland, OR.
5/1/14: Welcome new M.S. student, Justin Coughlin and new undergraduate researchers, Troy Ferland and Katherine Colwell.
5/1/14: New project starts examining fate of reactive N emissions from unconventional shale gas extraction activities.
1/25/14: Elliott lab seeking new members!! See Opportunities for description of a new Postdoctoral and M.S. opportunity in our lab.
1/9/14: Elliott receives new DOE award for examining reactive nitrogen emissions of Marcellus Shale extraction activities.
Archived news, 2013
12/9/13: Lucy Rose presents latest findings at AGU. Her presentation titled "Temporal Trends in Stream Nitrate Sources Across a Nitrogen Saturation Gradient" reported triple nitrate isotope analyses for four watersheds at Fernow Experimental Forest.
12/07/13: EnergyNET exhibit opens at the Carnegie Museum of Natural History. The grand opening of our newest exhibit "Pollution Solutions" is dedicated to finding sustainable solutions to urban water quality issues and was well-attended by parents, friends, and Museum visitors.
10/13: An invited review paper was pubished for a special volume of Elements Magazine dedicated to "Nitrogen and its (biogeocosmo)chemical cycling". The paper is titled "Stable isotopes as tracers of anthropogenic nitrogen sources, deposition, and impacts" and authored by Meredith Hastings, Karen Casciotti, and Emily Elliott.
9/2/13: Manuscript published describing a new methodological approach for isotopic analysis of low concentration ambient ammonia samples. The paper, "Characterizing the isotopic composition of atmospheric ammonia emission sources using passive samplers and a combined oxidation-bacterial denitrifier approach" was published in Rapid Communications in Mass Spectrometry and was led by J. David Felix.
9/1/13: EnergyNet transitions to a new Geoscience Fellow and Environmental Interns. Krissy Hopkins (an avid blogger) and PhD Candidate working with Dr. Dan Bain joined the EnergyNet team in September along with four new Environmental Interns (Nadin Suler,
Lindsay Hagerty, Lauren Bakale, and Rebekah Dempsey).
8/31/13: EnergyNET exhibit opens at the Carnegie Museum of Natural History. The grand opening of our new exhibit "The Energy-Water Nexus: Watt About It?" was well-attended by parents, friends, and Museum visitors.
8/1/13: Welcome new PhD students: In August, we welcomed the addition of two new PhD students to our lab group. Zhongjie Yu joins us from Rutgers University where he recently completed a M.S. thesis exploring methane ebullition from U.S. peatlands. Kassia Groszewski joins us from Indiana University, Bloomington, where she recently finished her M.S. in Hydrology. Welcome!
6/26/13: Our urban nitrogen research in Nine Mile Run is highlighted in the Academic Minute podcast sponsored by WAMC Northeast Public Radio. The podcast can be accessed here.
5/24/13: New paper published on the influence highways on reactive nitrogen distributions. The article titled "Highway contributions to reactive nitrogen deposition: Tracing the fate of vehicular NOx using stable isotopes and plant biomonitors" was published in Biogeochemistry and led by Katie Redling.
4/25/13: New results published on the historical influence of fertilizer application to Greenland nitrate deposition. The article titled "The agricultural history of human-nitrogen interactions as recorded in ice core d15N-NO3" was published in Geophysical Research Letters and led by former lab member, J. David Felix.
4/20/13: Dr. Elliott was invited to present at the 75th anniversary of Sanitation Engineering at Johns Hopkins University.
4/10/13: Undergraduate researcher, Mollie Kish, awarded a Brackenridge Summer Research Fellowship. The Fellowship will support Mollie's research documenting rates of urban bulk nitrogen deposition in Nine Mile Run.
3/18/13: Research results from Nine Mile Run in Pittsburgh, PA are featured in the online journal, Atlantic Cities. The article, "It's Not Just Overflow—Everyday Leaks From Sewer Systems Lead to Alarming Amounts of Sewage in Our Waterways" can be accessed here.
3/9/13: Dr. Elliott and Lucy Rose return from the 4th U.S.-Japan Joint Seminar on Responses of Catchment Hydrology and Forest Biogeochemistry to Climatic and Environmental Change in Honolulu, Hawaii. Dr. Elliott, a co-convener of the NSF-funded conference, attended the meeting with Lucy Rose who presented a poster on her recent results "Biogenic and anthropogenic NOx contributions to precipitation nitrate".
2/13/13: Dr. Elliott receives an NSF CAREER award for her proposal "Air-ecosystem-water interactions of reactive nitrogen in urban systems" from the Hydrologic Sciences directorate.
1/29/13: Marion Divers publishes a paper published in Environmental Science & Technology entitled "Constraining nitrogen inputs to urban streams from leaking sewer infrastructure using inverse modeling: Implications for DIN retention in urban environments".
1/09/13: Dr. Elliott awarded Honorable Mention for the 2013 Carnegie Science Awards in the Environmental category.
12/07/13: EnergyNET exhibit opens at the Carnegie Museum of Natural History. The grand opening of our newest exhibit "Pollution Solutions" is dedicated to finding sustainable solutions to urban water quality issues and was well-attended by parents, friends, and Museum visitors.
10/13: An invited review paper was pubished for a special volume of Elements Magazine dedicated to "Nitrogen and its (biogeocosmo)chemical cycling". The paper is titled "Stable isotopes as tracers of anthropogenic nitrogen sources, deposition, and impacts" and authored by Meredith Hastings, Karen Casciotti, and Emily Elliott.
9/2/13: Manuscript published describing a new methodological approach for isotopic analysis of low concentration ambient ammonia samples. The paper, "Characterizing the isotopic composition of atmospheric ammonia emission sources using passive samplers and a combined oxidation-bacterial denitrifier approach" was published in Rapid Communications in Mass Spectrometry and was led by J. David Felix.
9/1/13: EnergyNet transitions to a new Geoscience Fellow and Environmental Interns. Krissy Hopkins (an avid blogger) and PhD Candidate working with Dr. Dan Bain joined the EnergyNet team in September along with four new Environmental Interns (Nadin Suler,
Lindsay Hagerty, Lauren Bakale, and Rebekah Dempsey).
8/31/13: EnergyNET exhibit opens at the Carnegie Museum of Natural History. The grand opening of our new exhibit "The Energy-Water Nexus: Watt About It?" was well-attended by parents, friends, and Museum visitors.
8/1/13: Welcome new PhD students: In August, we welcomed the addition of two new PhD students to our lab group. Zhongjie Yu joins us from Rutgers University where he recently completed a M.S. thesis exploring methane ebullition from U.S. peatlands. Kassia Groszewski joins us from Indiana University, Bloomington, where she recently finished her M.S. in Hydrology. Welcome!
6/26/13: Our urban nitrogen research in Nine Mile Run is highlighted in the Academic Minute podcast sponsored by WAMC Northeast Public Radio. The podcast can be accessed here.
5/24/13: New paper published on the influence highways on reactive nitrogen distributions. The article titled "Highway contributions to reactive nitrogen deposition: Tracing the fate of vehicular NOx using stable isotopes and plant biomonitors" was published in Biogeochemistry and led by Katie Redling.
4/25/13: New results published on the historical influence of fertilizer application to Greenland nitrate deposition. The article titled "The agricultural history of human-nitrogen interactions as recorded in ice core d15N-NO3" was published in Geophysical Research Letters and led by former lab member, J. David Felix.
4/20/13: Dr. Elliott was invited to present at the 75th anniversary of Sanitation Engineering at Johns Hopkins University.
4/10/13: Undergraduate researcher, Mollie Kish, awarded a Brackenridge Summer Research Fellowship. The Fellowship will support Mollie's research documenting rates of urban bulk nitrogen deposition in Nine Mile Run.
3/18/13: Research results from Nine Mile Run in Pittsburgh, PA are featured in the online journal, Atlantic Cities. The article, "It's Not Just Overflow—Everyday Leaks From Sewer Systems Lead to Alarming Amounts of Sewage in Our Waterways" can be accessed here.
3/9/13: Dr. Elliott and Lucy Rose return from the 4th U.S.-Japan Joint Seminar on Responses of Catchment Hydrology and Forest Biogeochemistry to Climatic and Environmental Change in Honolulu, Hawaii. Dr. Elliott, a co-convener of the NSF-funded conference, attended the meeting with Lucy Rose who presented a poster on her recent results "Biogenic and anthropogenic NOx contributions to precipitation nitrate".
2/13/13: Dr. Elliott receives an NSF CAREER award for her proposal "Air-ecosystem-water interactions of reactive nitrogen in urban systems" from the Hydrologic Sciences directorate.
1/29/13: Marion Divers publishes a paper published in Environmental Science & Technology entitled "Constraining nitrogen inputs to urban streams from leaking sewer infrastructure using inverse modeling: Implications for DIN retention in urban environments".
1/09/13: Dr. Elliott awarded Honorable Mention for the 2013 Carnegie Science Awards in the Environmental category.
Archived news, 2012
12/22/12: Outstanding Student Presentation Award to Lucy Rose from the Biogeosciences Section, American Geophysical Union for her presentation at the 2012 Fall Meeting in San Francisco. Her presentation, titled “Highly Variable δ15N and δ18O of Event-Based Precipitation Nitrate Indicate Dynamic Contributions from Biogenic and Anthropogenic NOx Sources”, explored the role of biogenic soil emissions as a nutrient source in rainwater to an N-saturated watershed.
11/20/12: J. David Felix defended his dissertation entitled "Examining the Sources and Transport of Reactive Nitrogen Emissions using Stable Isotope Techniques". He'll soon be departing Pittsburgh to join the Marine and Atmospheric Chemistry group at UNCW as a postdoctoral fellow to work on isotopes of ethanol and biofuels.
8/20/12: New NSF-funded Geoscience Education initiative. “ENERGY-NET” is a new collaboration that couples Geoscience and Learning Research strengths at the University of Pittsburgh with the Carnegie Museum of Natural History to: 1) improve public literacy in the arena of energy, the environment, and society, and 2) increase diversity in the geosciences.
8/9/12: Research highlighted in New York Times "Green" blog. Our recent work was used as an example of the power of imaging and maps to illucidate pollution sources using the "chemical equivalent of ballistics testing on bullets, taking aim at nitrogen molecules".
7/21/12: Lucy Rose receives USDA pre-doctoral fellowship. Lucy was awarded a $74,000 fellowship from the USDA National Institute of Food & Agriculture, Agriculture & Food Research Initiative for her proposal entitled “Determination of Forest Nitrogen Saturation Status Using a Stable Isotope Tracer of Atmospheric Nitrate.”
3/20/12: New paper published in Environmental Science & Technology by Felix, Elliott, and Shaw. "Nitrogen Isotopic Composition of Coal-Fired Power Plant NOx: Influence of Emission Controls and Implications for Global Emission Inventories".
11/20/12: J. David Felix defended his dissertation entitled "Examining the Sources and Transport of Reactive Nitrogen Emissions using Stable Isotope Techniques". He'll soon be departing Pittsburgh to join the Marine and Atmospheric Chemistry group at UNCW as a postdoctoral fellow to work on isotopes of ethanol and biofuels.
8/20/12: New NSF-funded Geoscience Education initiative. “ENERGY-NET” is a new collaboration that couples Geoscience and Learning Research strengths at the University of Pittsburgh with the Carnegie Museum of Natural History to: 1) improve public literacy in the arena of energy, the environment, and society, and 2) increase diversity in the geosciences.
8/9/12: Research highlighted in New York Times "Green" blog. Our recent work was used as an example of the power of imaging and maps to illucidate pollution sources using the "chemical equivalent of ballistics testing on bullets, taking aim at nitrogen molecules".
7/21/12: Lucy Rose receives USDA pre-doctoral fellowship. Lucy was awarded a $74,000 fellowship from the USDA National Institute of Food & Agriculture, Agriculture & Food Research Initiative for her proposal entitled “Determination of Forest Nitrogen Saturation Status Using a Stable Isotope Tracer of Atmospheric Nitrate.”
3/20/12: New paper published in Environmental Science & Technology by Felix, Elliott, and Shaw. "Nitrogen Isotopic Composition of Coal-Fired Power Plant NOx: Influence of Emission Controls and Implications for Global Emission Inventories".
Archived news, 2011
12/10/11: Group members attend Fall 2011 meeting of the American Geophysical Union, San Francisco. Activities included invited talks by David Felix and Emily Elliott, presentations by Marion Sikora and Katherine Redling, and the 9th annual convening of the "Bio-atmospheric Interactions of Nitrogen" session.
3/25/11: Lucy Rose, Ph.D. Candidate, Outstanding Paper Award. University of Pittsburgh Annual Graduate Student Expo
Title: Using Stable Isotopes of Nitrate to Gauge Forest Nitrogen Saturation
3/9/11: Lucy Rose, Ph.D. Candidate, awarded Andrew Mellon Pre-doctoral Fellowship.
Title: Application of a Mass Independent Isotope Tracer to Nitrogen Saturation in Appalachian Forests
3/3/11: New WRRI research grant awarded from the Pennsylvania Water Resources Research Institute.
Title: Assessing the influence of nutrient sources to urban streams through the use of triple nitrate isotopes
3/25/11: Lucy Rose, Ph.D. Candidate, Outstanding Paper Award. University of Pittsburgh Annual Graduate Student Expo
Title: Using Stable Isotopes of Nitrate to Gauge Forest Nitrogen Saturation
3/9/11: Lucy Rose, Ph.D. Candidate, awarded Andrew Mellon Pre-doctoral Fellowship.
Title: Application of a Mass Independent Isotope Tracer to Nitrogen Saturation in Appalachian Forests
3/3/11: New WRRI research grant awarded from the Pennsylvania Water Resources Research Institute.
Title: Assessing the influence of nutrient sources to urban streams through the use of triple nitrate isotopes
Archived news, 2010
8/1/10: Lucy Rose, Ph.D. Candidate, Fellowship Recipient, INTRAMIF (Summer School on Mass Independent Isotope Fractionation). Lucy was chosen as a fellow for the European Union-sponsored INTRAMIF summer school focused on mass independent isotope fractionation phenomena in atmospheric, terrestrial, and aquatic systems in East Anglia, UK.
3/5/10: Marion Sikora, Ph.D. Candidate, awarded Andrew Mellon Pre-doctoral Fellowship.
Title: Evaluating nutrient sources to urban streams using triple nitrate isotopes
4/10/10: Multiple graduate research fellowships awarded by Geological Society of America. Marion Sikora, Lucy Rose, and Dave Felix were all awarded graduate student research grants from the Geological Society of America.
3/5/10: Marion Sikora, Ph.D. Candidate, awarded Andrew Mellon Pre-doctoral Fellowship.
Title: Evaluating nutrient sources to urban streams using triple nitrate isotopes
4/10/10: Multiple graduate research fellowships awarded by Geological Society of America. Marion Sikora, Lucy Rose, and Dave Felix were all awarded graduate student research grants from the Geological Society of America.
Archived news, 2009
3/16/09: Marion Sikora, Ph.D. Candidate, Outstanding Paper Award. University of Pittsburgh Annual Graduate Student Expo
Title: Nutrient Input and Dynamics during Baseflow and a Storm Event in Nine Mile Run, a Restored Urban Stream
9/15/09: New NSF research grant awarded to PI Elliott from Hydrologic Sciences.
Title: A new tool for assessing nitrogen saturation status in forests: Mass-independent ∆17O of nitrate
9/15/09: New NSF research grant awarded to PI Elliott from the Division of Earth Sciences, Instrumentation and Facilities
Title: Early Career Investigator Support: Development of a Regional Stable Isotope Laboratory for Earth and Environmental Science Research
6/1/09: New MD DNR research award to PI Elliott from the Maryland Department of Natural Resources, Power Plant Research Program.
Title: An assessment of near-highway nitrogen deposition using stable isotope tracers and passive sampling techniques
1/6/09: New research award to PI Elliott from the Electric Power Research Institute (EPRI).
Title: The Stable Nitrogen Isotopic Composition of NOx in Coal-Fired Power Plant Stacks
Title: Nutrient Input and Dynamics during Baseflow and a Storm Event in Nine Mile Run, a Restored Urban Stream
9/15/09: New NSF research grant awarded to PI Elliott from Hydrologic Sciences.
Title: A new tool for assessing nitrogen saturation status in forests: Mass-independent ∆17O of nitrate
9/15/09: New NSF research grant awarded to PI Elliott from the Division of Earth Sciences, Instrumentation and Facilities
Title: Early Career Investigator Support: Development of a Regional Stable Isotope Laboratory for Earth and Environmental Science Research
6/1/09: New MD DNR research award to PI Elliott from the Maryland Department of Natural Resources, Power Plant Research Program.
Title: An assessment of near-highway nitrogen deposition using stable isotope tracers and passive sampling techniques
1/6/09: New research award to PI Elliott from the Electric Power Research Institute (EPRI).
Title: The Stable Nitrogen Isotopic Composition of NOx in Coal-Fired Power Plant Stacks
Archived news, 2007-2008
12/20/08: Outstanding Student Presentation Award to Marion Divers from the Hydrology Section, American Geophysical Union for her
presentation at the 2008 Fall Meeting in San Francisco. Her presentation, titled “Nutrient input and dynamics in a restored urban stream impacted by mixed sewer systems”, examined water quality and nutrient contamination in Nine Mile Run, a restored urban stream in Frick Park, Pittsburgh, PA.
3/15/08: Graduate research fellowship and Exceptional Merit award granted to Katherine Redling by the Geological Society of America for her research proposal entitled, “Isotopic investigation of anthropogenic sources of carbon and nitrogen to vegetation along an urban to rural gradient”.
1/15/08: New grant awarded to PI Elliott from the U.S. Department of Agriculture, National Research Initiative, Air Quality program.
Title: Stable Isotopes of Reactive Nitrogen and Particulate Matter: Improved Tools for Characterizing the Transport and Fate of Agricultural Emissions
1/15/08: New USFS grant awarded to PI Elliott from the U.S. Department of Agriculture, Forest Service, Northern Global Change Research Program.
Title: Isotopic investigation of anthropogenic sources of atmospheric nitrogen and carbon to vegetation along an urban to rural gradient.
10/19/07: USGS press release. The USGS issued a press release entitled "USGS Study Identifies Major Source of Nitrate in Precipitation" to accompany our recently published paper in Environmental Science & Technology.
10/31/07: Interview on Allegheny Front. Listen to the interview on Allegheny Front, a public radio show dedicated to environmental issues.
presentation at the 2008 Fall Meeting in San Francisco. Her presentation, titled “Nutrient input and dynamics in a restored urban stream impacted by mixed sewer systems”, examined water quality and nutrient contamination in Nine Mile Run, a restored urban stream in Frick Park, Pittsburgh, PA.
3/15/08: Graduate research fellowship and Exceptional Merit award granted to Katherine Redling by the Geological Society of America for her research proposal entitled, “Isotopic investigation of anthropogenic sources of carbon and nitrogen to vegetation along an urban to rural gradient”.
1/15/08: New grant awarded to PI Elliott from the U.S. Department of Agriculture, National Research Initiative, Air Quality program.
Title: Stable Isotopes of Reactive Nitrogen and Particulate Matter: Improved Tools for Characterizing the Transport and Fate of Agricultural Emissions
1/15/08: New USFS grant awarded to PI Elliott from the U.S. Department of Agriculture, Forest Service, Northern Global Change Research Program.
Title: Isotopic investigation of anthropogenic sources of atmospheric nitrogen and carbon to vegetation along an urban to rural gradient.
10/19/07: USGS press release. The USGS issued a press release entitled "USGS Study Identifies Major Source of Nitrate in Precipitation" to accompany our recently published paper in Environmental Science & Technology.
10/31/07: Interview on Allegheny Front. Listen to the interview on Allegheny Front, a public radio show dedicated to environmental issues.