Welcome to the Pratt Lab blog! Dr. Kerri Pratt is an assistant professor in the Departments of Chemistry and Earth & Environmental Sciences and faculty associate of the Program in the Environment at the University of Michigan. We study atmospheric trace gases, particles, snow, and clouds and their interactions with the biosphere (forests) and cryosphere (snow and sea ice). Our interdisciplinary research has relevance to climate change, air quality, and human health. As an analytical chemistry lab, we primarily use novel mass spectrometry techniques during our field research. We invite you to follow our adventures in (and outside!) the lab!

Monday, April 17, 2017

Congratulations to Annie, Stephen, and Rachel!

Graduating senior Annie Barget and PhD students Stephen McNamara and Rachel Kirpes were awarded fellowships from the Michigan Space Grant Consortium! Congratulations!!

Tuesday, April 11, 2017

Stephen Volunteers in "You Be the Chemist" Event at UM

I (Stephen) gave a presentation about research in the Pratt Lab to regional elementary and middle school students participating in the "You Be the Chemist" Challenge held at the University of Michigan on March 23rd. This event, put on by local firm PVS Chemical, is part of a national program in which 5-8 grade students participate in a chemistry academic challenge, similar to a quiz bowl, supported by local industry and academic institutions. For more information, visit their website!

Before the competition, the students learned about research at UM through presentations and demonstrations by lab groups in the Chemistry department. It was a great opportunity for students to see what a career in chemistry research would look like!
Learning about polymers by making Shrinky Dinks!

Monday, April 10, 2017

Pratt Lab featured in Pacific Northwest National Lab highlight!

Pratt Lab PhD student Rachel Kirpes and rotation student Nicole Olson are featured on the Pacific Northwest National Laboratory Environmental Molecular Sciences Laboratory website!

Sunday, April 9, 2017

Alaska Dispatch News covers Pratt Lab paper!

The Alaska Dispatch News (Anchorage daily newspaper) covered Katie's recent paper on Prudhoe Bay emissions impacting ultrafine particle growth on the North Slope!
Link to paper published in Atmospheric Environmenthttp://www.sciencedirect.com/science/article/pii/S1352231016309785

Friday, April 7, 2017

Pratt Lab presents research at the Michigan Geophysical Union meeting

At the 14th Annual Michigan Geophysical Union meeting, six graduate students and five undergraduate students from the Pratt Lab presented their research. The topics highlighted the diversity of research that we are pursuing in our group. PhD student Matt Gunsch won first place in the Chemistry Section for his research on "Chemical Characterization of Atmospheric Particulate Matter from Prudhoe Bay, Alaska" and PhD rotation student Nicole Olson won second place in the Chemistry section for "Single Particle Analysis of Ambient and Laboratory Generated Lake Spray Aerosols". Senior Annie Barget won first place for the Michigan Geophysical Union Undergraduate category for her work on "Effects of Wind Speed and Sea Ice Conditions on the Chemical Composition of Coastal Arctic Snow". Congratulations to everyone who presented!

Matt Gunsch presenting his first place research on the single particle chemical composition in Prudhoe Bay, Alaska

Nicole Olson with her award winning research on lake spray aerosols

Annie Barget with her award winning research on the connections between wind speed, sea ice leads and the chemical composition of snow

Anna Leemon presenting on Arctic snow composition during the spring melt

Logan Vear presenting research on the influence of wildfires on cloud water 

Ryan Cook talked about the organic composition of aerosols observed at the University of Michigan Biological Station during summer 2014

Alexa Watson discussed her work calibrating the ATOFMS using relative sensitivity factors

Nate May presented on the physical and chemical characteristics of lake spray aerosol

Rachel Kirpes discussing her research using microscopy to identify elemental composition and functional groups present in particles from Utqiagvik, Alaska

Stephen McNamara presented data on atmospheric chlorine chemistry in the springtime Arctic 

Saturday, March 18, 2017

Grand Prize for Rashad at 60th Science & Engineering Fair of Metropolitan Detroit!

Congratulations to summer 2016 D-RISE Pratt Lab researcher Rashad Prendergast (Cass Technical High School) for being awarded in the Grand Prize in the Senior Division (Category: Earth & Environmental Sciences) at the 60th Science & Engineering Fair of Metropolitan Detroit for his summer research and poster titled "Impact of Road Salt Usage on Atmospheric Concentrations of Cl and Na PM2.5"! Rashad will now go to compete at the Intel International Science and Engineering Fair in Los Angeles in May! Good luck Rashad!

Sunday, March 12, 2017

New paper on dust composition in the Taylor Glacier (East Antarctica)!

Congratulations to Sarah Aarons (recent PhD in the Aciego group at the University of Michigan) on her recent paper on "Dust composition changes from Taylor Glacier (East Antarctica) during the last glacial-interglacial transition: A multi-proxy approach" published in Quaternary Science Reviews! Pratt lab PhD student Nate May and Prof. Pratt are co-authors.