Ongoing research focuses on investigating the effects of (1) atmospheric nitrogen oxides (NOx) on aerosol (particulate matter) formation, and (2) the atmospheric concentration and deposition of heavy metal air pollutants in Portland. We use satellite data analysis, regional chemistry/meteorology model simulations, and field and laboratory measurements. The latter include in-house capabilities for gas-phase measurement of NO, NO2, NH3, and O3, gas-phase organics measurement via GC-MS and GC-FID; aerosol chemical composition analysis by FTIR spectrometry (in-house) and HPLC-ESI-MS (via an off-campus collaboration); particle size distribution and growth measurements by scanning electrical mobility sizing (SEMS) and optical particle counting (OPC); black carbon measurement by aethelometer, CO2 measurements by LiCor, and metals measurements by X-ray fluorescence (XRF). Ambient sampling is enabled by our roof lab at Reed as well as Hi-Vol samplers and absorption cartridges that can be deployed remotely. Laboratory studies employ chamber experiments in the Reed Environmental Chamber and a kinetics flow tube. Computer modeling tools employed include molecular structure and reaction coordinate computations, atmospheric kinetics box models, regional chemical and dynamic modeling, and positive matrix factorization (PMF) statistical source attribution analysis. Interested in getting involved? Contact Julie: fry@reed.edu for current research openings!

Meet the Reed Atmospheric Chemistry Research Group, past and present

Academic Year 2017-2018:

annaonroof

THESIS: Anna Miller: Atmospheric Heavy Metal Pollution in Portland, Oregon

Academic Year 2016-2017:

jf-nederland

Julie is on leave, teaching and conducting research (and biking in the rain) as a Fulbright U.S. Scholar in the Netherlands at the Institute for Marine and Atmospheric Research, Universiteit Utrecht, and a Visiting Scientist at the Institute for Energy and Climate at Forschungszentrum Jülich in Germany.

Cd-hotspot

THESIS: Annelise Hill: Sources, transport, and effects of airborne metals in Portland, OR.

Academic Year 2015-2016:

L&C graduation foto

Julie is on sabbatical in Portland, working on a Master's degree in Environmental and Natural Resource Law, writing about endangered salmon in the Federal Columbia River Power System and establishing standing for climate change lawsuits.

Kelp

THESIS: Makoto Kelp: Tropospheric Particle Formation in Forests: Global Modeling of Secondary Organic Aerosol Production from Reaction of NO3 Radical with Speciated Monoterpenes. The consumption of raw herring was incidental to this thesis.

Summer 2015: Kang Kang and Natalie Keehan spend 2 months in Boulder to work on collaborative NO3 + terpene experiments in the brand-new CU Boulder chamber, while Catherine Neshyba investigates the initial steps of the same reactions in silica

kang-chamber nat-crds ro2

Academic Year 2014-2015

kang

THESIS: Kang Kang: Chamber Study Exploring Aerosol Formation from NO3 Oxidation of α-pinene and Δ-carene under Varying HO2/RO2/NO3 Regimes

natalie

THESIS: Natalie Keehan: Organonitrate gas/aerosol partitioning and hydrolysis in NO3 + Δ-carene SOA formation.

eve

THESIS: Eve Mozur: Organic aerosol composition around the Brooklyn Railyard

makoto

INDEPENDENT STUDY: Makoto Kelp: Particulate Matter, Black Carbon, and Human Health

Summer 2014: Kang Kang, Makoto Kelp, and Natalie Keehan work alongside Dr. Ayres & Prof. Fry to seek (fame, fortune, and) insights about the role of organonitrates in aerosol formation, and the contribution of rail traffic to diesel particulate matter in the Columbia River Gorge, including a field study in the Dalles and a collaborative chamber study in Boulder, CO.

group2014

Congratulations, 2014 graduates! Enjoying a sunny afternoon in Portland.

Aerosol science is serious business.

RollReed

Academic Year 2013-2014

Ayres

POSTDOC FELLOWSHIP: Dr. Ben Ayres joined the group in April 2013 to work on SOAS 2013 and subsequent lab studies. Here he surveys the Alabama forest from atop the SOAS tower.

Hannah

THESIS: Hannah Allen: Inorganic gas & aerosol composition in the Pacific Northwest and Southeastern U.S. Hannah shows you her fabulous Monitor for AeRosols and GAses (MARGA) instrument.

Chris

THESIS: Chris Cogell: Spatial analysis of the NO2 plume near Brooklyn Railyard.

Tuan

THESIS: Alan Tuan: Railyard black carbon and particulate matter emissions. Can't look at the camera now - busy setting up our aethelometer in the Reed warehouse.

Field season 2013: The Atmospheric Strike Force of Ben Ayres, Danielle Draper, Hannah Allen, and Julie Fry head off to the Talladega National Forest in Alabama for the Southeastern Aerosol and Oxidant Study (SOAS)!

Talladega-group

Congratulations, class of 2013! The fabulous four at senior dinner, 2013:

thesisers2013

Danielle Draper, James Bianconi, Julie Fry, Laura Krause, Kathryn Sackinger

Academic Year 2012-2013

JB

THESIS: James Bianconi: GC measurement of pinene oxidation products

DraperThesis

THESIS: Danielle Draper: Chamber studies of NOx effects on BVOC SOA formation

KrauseThesis

THESIS: Laura Krause: Measuring and interpreting aerosol chemical composition in the eastern Columbia River Gorge

KatThesis

THESIS: Kathryn Sackinger: Synthetic analogs for oligomer formation in oxidation of a-pinene and D-carene

summer2012

Summer 2012: Danielle Draper and Laura Krause work on chamber studies of acidity effects on SOA formation, and quantifying functional group contributions to aerosol composition via FTIR.

Julie just returned from a 2011-2012 sabbatical at NCAR and NOAA CIRES (Boulder, CO), where she investigated NO3-initiated aerosol formation in Colorado front range forests. Click here for a glimpse of what field research in atmospheric chemistry looks like (July-Aug 2011), and here for a summary of laboratory chamber and flow tube experiments at the National Center for Atmospheric Research (Sept-Nov 2011).

team-nitro

Danielle Draper, Julie Fry, and Kyle Zarzana, August 2011 at BEACHON-RoMBAS field campaign, Woodland Park, CO. Yes, but do you have a flag?

Congratulations graduates 2011! Some of Reed Chem's best & brightest celebrating at senior dinner:

chem seniors 2011

Claire Remington, Steven von Kugelgen, Caleb Arata, Lauren Sanders, Ariyeh Conrad-Antoville, Alice Newton, Alex Diezmann

Academic Year 2010-2011

Fluffy Cass photo

THESIS: Caleb Arata: Alpha-pinene Secondary Organic Aerosol: Formation kinetics and chemical composition

remington

THESIS: Claire Remington: Sound wall effects on benzene concentration near roadways

meade schomaker

Rhiana Meade's (left) independent study project focused on SOA yields from a-pinene under differing NOx and light conditions; Lisa Schomaker's (right) biology thesis included ozone exposure experiments on douglas fir pines in our Plant Torture Chamber.

katz zha

Josh Katz is finishing up a project quantifying organic nitrates in FTIR of ambient aerosol samples; Li Zha is working on a manuscript on our satellite analysis of NOx/aerosol correlation.

Summer 2010: The Reed Atmospheric Army Motto: "Aim high!"

Atmospheric Army

Julie Fry, Claire Remington, Rhiana Meade, Caleb Arata, Josh Katz, Li Zha, Kathryn Sackinger. Not pictured: Kassandra Reuss-Schmidt, Holly Neill.

Academic Year 2009-2010

Fluffy Cass photo

THESIS: Tara "Fluffy" Cass: Atmospheric abundance of silver nanoparticles and reactions of NO2 thereon

Holly Neill and Josh Katz Air quality deck Satellite correlation

Holly Neill (PSU Master's student) and Josh Katz continued work on Soxhlet extraction for FTIR analysis of filter-collected aerosol on our new roof deck lab; Li Zha develops correlation code for studying NOx/aerosol interactions in satellite data

Summer Research 2009

Caleb Arata

Caleb Arata: Measuring NO2 concentration gradients in the Columbia River Gorge

Steph Dillon

Steph Dillon: Polartiy fractionation and GC/MS techniques for aerosol chemical composition and source tracer analysis

Li Zha

Li Zha: Satellite analysis of NOx/aerosol correlations in the western U.S.

Academic Year 2008-2009

Julie Look Anna

Celebrating thesis completion at senior dinner!

Anna Stonestrom

THESIS: Anna Stonestrom: FTIR functional group analysis of filter sampled ambient atmospheric aerosol

Look Tobin

THESIS: Jessica "Look" Tobin: Satellite data analysis of NOx and aerosol in the Pacific Northwest