Alla Zelenyuk-Imre

Development of Atmospheric Pressure Environmental (APE) Chamber for Chemical Imaging of Aerosol, Plant, and Soil Samples

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Zezhen Cheng

Maintaining low-pressure (∼2×10−6-10 Torr) inside the Environmental Scanning Electron Microscope (ESEM) chamber is the major challenge in pressure- and/or relative humidity (RH)-sensitive sample (e.g…

Size Resolved Chemical Composition of Automobile Generated Aerosol Via Single Particle Real-Time Ion-Trap Mass-Spectrometry

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Alla Zelenyuk-Imre

Project type

Exploratory Research

Single Particle Mass Spectroscopy (SPMS) and Exhaust Emissions SPMS are particularly suited to address the combustion engine industry need to characterize particulate emissions. As discussed below,…

Molecular identification of non-proteinaceous biological particles towards nucleating ice

Lead Institution

Karlsruhe Institute of Technology

Principal Investigator

Ottmar Mohler

Project type

Exploratory Research

A small number of atmospheric ice-nucleating particles (INPs) can induce freezing of supercooled droplets in tropospheric clouds and conceivably influence precipitation and the planet’s climate…

The Relationship between Particle Properties and Ice Nucleation:
Laboratory and Field Investigation and Parameterization Development

Lead Institution

University of Wyoming

Principal Investigator

Xiaohong Liu

Project type

Large-Scale EMSL Research

Atmospheric aerosols impact the climate by scattering and absorbing solar radiation and in their role as cloud condensation nuclei (CCN). Cloud properties are strongly dependent on the number of CCNs…

Atmospheric Soil Organic Particles

Lead Institution

Purdue University

Principal Investigator

Alexander Laskin

Recent discovery of atmospheric soil organic particles (ASOP), emitted through previously unrecognized atmosphere-land-surface interactions, suggests that ASOP may have a widespread impact over a…

Chemistry and Microphysics of Small Particles

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Alla Zelenyuk-Imre

Project type

Large-Scale EMSL Research

This proposal is a continuation of research under EMSL User Proposal #17498. Atmospheric aerosol particles impact the global climate by scattering solar radiation to space and in their role as cloud…

A Molecular-to-Regional Scale Understanding of Secondary Organic Aerosol Formation

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Jerome Fast

Project type

Large-Scale EMSL Research

Our hypothesis is that a better understanding of fast-reacting processes is needed to make a breakthrough in parameterizing secondary organic aerosols (SOA) for the next generation climate models. To…

Hygroscopic Properties of Aerosol Organics

Lead Institution

Desert Research Institute

Principal Investigator

Douglas Lowenthal

Project type

Large-Scale EMSL Research

While organics constitute a large fraction of ambient aerosol mass, their role and effect on particle hygroscopic growth and cloud nucleation remains unclear. Organics are most often present in…

Atmospheric Soil Organic Particles

Lead Institution

Purdue University

Principal Investigator

Alexander Laskin

Recent discovery of atmospheric soil organic particles (ASOP), emitted through previously unrecognized atmosphere-land-surface interactions, suggests that ASOP may have a widespread impact over a…

The Effect of Surface Active Organic Molecules on the Water Uptake, Shape and Density of Hygroscopic Particles of Atmospheric Importance

Lead Institution

University of Colorado at Boulder

Principal Investigator

Gayfree Ellison

Project type

Large-Scale EMSL Research

This proposal is a continuation of research under EMSL User Proposal #16741. Field measurements of aerosol compositions consistently reveal that organics make up a significant fraction of the…

The Characterization of Diesel Exhaust Particle Matter and its Atmospheric Lifecycle: The Size, Shape and Composition of Soot Particles in the Atmosphere

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

George Muntean

Project type

Large-Scale EMSL Research

Elemental carbon or soot particles, the majority of which are emitted by diesel engines, significantly impact the Global Climate. Most atmospheric particles impact is to cool the planet by scattering…

ClusterSculptor: An Expert Driven Visual Analytics Tool for the Classification of Single Particle Mass Spectra

Lead Institution

State University of New York at Stony Brook

Principal Investigator

Klaus Mueller

Project type

Large-Scale EMSL Research

This proposal is a continuation of research under EMSL User Proposal #3644. Single particle mass spectrometers and SPLAT in particular generate massive amounts of complex detailed data. Dr. Zelenyuk…

Chemistry of Aerosols in the North Slope of Alaska: ISDAC 2008 study.

Lead Institution

Lawrence Berkeley National Laboratory

Principal Investigator

Mary Gilles

Project type

Large-Scale EMSL Research

The ISDAC (Indirect and Semi-Direct Aerosol Campaign) field study carried out in the North Slope of Alaska 2008 was a collaborative effort sponsored by the DOE Atmospheric Radiation Measurement (ARM)…

Deployment of EMSL Instruments during the 2010 Carbonaceous Aerosol and Radiative Effects Study (CARES)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Rahul Zaveri

Project type

Exploratory Research

The Carbonaceous Aerosol and Radiative Effects Study (CARES) will be conducted during summer 2010 in order to investigate the evolution of carbonaceous aerosols of different types and their optical…

Development of data analysis and visualization software - SpectraMiner

Lead Institution

State University of New York at Stony Brook

Principal Investigator

Peter Imrich

Project type

Exploratory Research

Single Mass Spectrometers (SPMS) are capable of producing huge amounts of data in a short time, making data mining a daunting task. Analysis of SPMS data is particularly difficult because of their…

Computer Programming of Data Acquisition Board for Single Particle Laser Ablation Time-of-flight Mass Spectrometer (SPLAT-MS)

Lead Institution

State University of New York at Stony Brook

Principal Investigator

Sachin Jambawalikar

Project type

Exploratory Research

SPLAT-MS was designed and built for real-time detection and characterization of individual aerosol particles. It has wide, practical applications in many important areas of research, such as…

Chemistry and Microphysics of the Small Particles (Zelenyuk's BES-Particles, PNNL Scope #47327)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Alla Zelenyuk-Imre

Project type

Exploratory Research

Nanoparticles play an important role in many areas. The unique properties of matter on the nanometer size range are a new frontier in science and technology with the potential to revolutionize our…

Fuel-Neutral Studies of Particulate Matter Transportation Emissions

Lead Institution

University of Wisconsin, Madison

Principal Investigator

David Foster

Project type

Exploratory Research

Customers and governments are demanding greater fuel efficiency in light duty engine applications. Since the majority of light duty engines in North America are fueled by gasoline, gasoline engine…

SPLAT: Real-Time Characterization of Individual Exhaust Particles (Zelenyuk's EE proposal: PNNL scope #48932)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Alla Zelenyuk-Imre

Project type

Exploratory Research

The research community has reached consensus on the adverse health effects of fine particles smaller than 2.5 &#956;m (PM2.5). Numerous epidemiological studies suggest a correlation between air…

Chemistry and Microphysics of Small Particles

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Alla Zelenyuk-Imre

Project type

Exploratory Research

This research is focused on the development and application of unique tools and methods to study the fundamental properties and processes that govern the chemistry and microphysics of particles at…

The Formation and Structure of Tropical Organic/Water Aerosols

Lead Institution

University of Colorado at Boulder

Principal Investigator

Gayfree Ellison

Project type

Large-Scale EMSL Research

Atmospheric aerosols are widely recognized as key elements in many environmental issues ranging from global climate change and visibility to adverse effects on peoples health. Aerosols affect climate…

Chemical Imaging Analysis of Environmental Particles

Lead Institution

Purdue University

Principal Investigator

Alexander Laskin

Project type

Large-Scale EMSL Research

This project focuses on laboratory studies that investigate the relationship between particle morphology, composition, formation, reactivity, and evaporation by developing novel methods for chemical…

Integrated Experimental and Modeling Studies on Secondary Organic Aerosol Formation

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Rahul Zaveri

Project type

Large-Scale EMSL Research

The objectives of this project are to: a) simultaneously characterize the time evolution of hydrocarbon precursor gases as well as the chemical and physical properties of secondary organic aerosols …

Meeting the Challenge of Particulate Emissions from Future High-Efficiency Vehicles

Lead Institution

University of Wisconsin, Madison

Principal Investigator

David Rothamer

Project type

Large-Scale EMSL Research

Advanced low temperature combustion technologies currently under development offer the potential to dramatically increase the fuel efficiency of engines which run on gasoline and similar fuel blends…

Secondary Organic Aerosol Formation from Nitrate Photochemistry

Lead Institution

University of California, Irvine

Principal Investigator

Barbara Finlayson-Pitts

Project type

Large-Scale EMSL Research

Secondary organic aerosols (SOA) in the troposphere are a major component of particulate matter and hence of interest with respect to health effects, visibility and radiative forcing. However, their…

Holistic Interactions of Shallow Clouds, Aerosols, and Land-Ecosystems (HI-SCALE)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Jerome Fast

Project type

Large-Scale EMSL Research

The proposed HI-SCALE field campaign to be conducted in the vicinity of the Southern Great Plains (SGP) "megasite" in Oklahoma during 2016 will utilize unique observational tools available…

Projects