Alexander Laskin | Environmental Molecular Sciences Laboratory

Vertical Distribution of Aerosol Properties during TRACER

Lead Institution

Washington University in St. Louis

Principal Investigator

Rajan Chakrabarty

Project type

FICUS Research

This project will provide the vertical distribution of physico-chemical properties of individual atmospheric particles collected by ARM’s tethered balloon system (TBS) as part of the TRACER campaign…

Probing Atmospheric Nanoplastics: An Unrecognized Urban Source of Airborne Particles

Lead Institution

Purdue University

Principal Investigator

Alexander Laskin

Project type

Large-Scale EMSL Research

fragments of microplastic or larger plastic debris discharged into terrestrial and aquatic environments, while atmospheric occurrence of EnvNP is solely attributed to aerosolization by wind and other…

Towards Aerosol-Ice Formation Closure – Chemical Imaging Investigation of Aerosol and Ice Nucleating Particles

Lead Institution

State University of New York at Stony Brook

Principal Investigator

Daniel Knopf

Project type

Large-Scale EMSL Research

Prediction of ice nucleating particle (INP) number concentrations from ambient aerosol particles represents an urgent and challenging issue when simulating cloud processes in climate models. A recent…

Environmental Effects of Aircraft Engine Exhaust Particles (A. Laskin's DOD-ILA, PNNL Scope #49510)

Lead Institution

Battelle Columbus

Principal Investigator

Chester Spicer

Project type

Exploratory Research

The environmental effects of aircraft engine exhaust particles have recently gained increasing attention primarily focused on their vital role in influencing the upper troposphere - lower…

Kinetic Study of Heterogeneous Reaction of Soot with Reactive Oxidants

Lead Institution

Stanford University

Principal Investigator

Hai Wang

Project type

Large-Scale EMSL Research

Heterogeneous reactions occurring between aerosol particles and reactive gaseous species in the atmosphere have significant impacts on atmospheric composition and chemistry, global radiative forcing,…

Kinetic study of heterogeneous reaction of palladium nanoparticles with O2 and OH

Lead Institution

Stanford University

Principal Investigator

Hai Wang

Project type

Large-Scale EMSL Research

The proposed research will examine the reaction kinetics and mechanism of palladium nanoparticle oxidation in molecular oxygen and by the hydroxyl radical. We will use the substrate deposited…

Molecular Level Analysis of Photochemical Processing of Brown Carbon and Nitrogen Compounds in Atmospheric Aerosols

Lead Institution

University of California, Irvine

Principal Investigator

Sergey Nizkorodov

Project type

Large-Scale EMSL Research

Atmospheric aerosols have a profound effect on climate by scattering and absorbing solar and Earth radiation. They can be predominantly scattering (e.g., sea-salt aerosol), predominantly absorbing (e…

Chemical Imaging and Molecular Characterization of Primary Biological Particles.

Lead Institution

University of California, Irvine

Principal Investigator

Alex Guenther

Project type

Large-Scale EMSL Research

The objective of the proposed project is to conduct in-depth studies of Primary Biological Aerosol Particles (PBAP) for predictive understanding of their environmental impact. The ultimate goal is to…

Oxidation of atmospheric organic particulate matter

Lead Institution

University of British Columbia

Principal Investigator

Allan Bertram

Project type

Exploratory Research

Organic particulate matter is abundant throughout the atmosphere. These organic particles may contribute significantly to the radiative forcing, thus, changing the Earth's climate. Additionally,…

Heterogeneous Uptake of HNO3 on CaCO3: Determination of the Gas-Particle Reaction Probability as Function of Relative Humidity

Lead Institution

University of Iowa

Principal Investigator

Vicki Grassian

Project type

Large-Scale EMSL Research

The proposed work will provide an accurate measurement of the heterogeneous reaction probability for HNO3 on CaCO3 and its dependence on relative humidity. The value of &#947;HNO3 (uptake…

Mexico City Municipal Area Air pollution Study, 2003

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James Cowin

Project type

Exploratory Research

This study is part of a larger international monitoring effort, to take place for 6 weeks, in and near Mexico City. The project is to examine air pollution factors, including particulates and trace…

Chemical Imaging Studies of Liquid-Liquid Phase Separation in Atmospheric Aerosols

Lead Institution

Lawrence Berkeley National Laboratory

Principal Investigator

Mary Gilles

Project type

Large-Scale EMSL Research

A large fraction of atmospheric aerosols contain an internal mixture of organics and inorganic salts. As the relative humidity (RH) cycles in the atmosphere, these particles can undergo phase…

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…

Automated Analysis of Field-Collected Aerosols

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James Cowin

Project type

Exploratory Research

We have developed a field portable instrument for automated collection of particles on a time-resolved basis. Essential to this project is having access to automated particle analysis. This…

Impact of Reactive Halogen Species on the Air Quality in Southern California Coastal Areas

Lead Institution

Washington State University

Principal Investigator

Bertram Jobson

Project type

Large-Scale EMSL Research

Air pollution in coastal urban centers remains one of the most serious environmental challenges in the State of California, and further efforts to improve air quality are a priority. Mitigation…

Development of Novel Approaches for Analysis of Secondary Organic Aerosols
Using High-Resolution Mass Spectrometry.

Lead Institution

Purdue University

Principal Investigator

Alexander Laskin

The objective of the proposed research is to develop new approaches for advanced detailed characterization of the chemical composition of organic aerosols (OA) that will enable a fundamental…

Ice Nucleation Properties of Authentic Atmospheric Marine Particles

Lead Institution

Sonoma Technology

Principal Investigator

Ryan Moffet

Project type

Large-Scale EMSL Research

The effect that aerosol particles have on climate is highly uncertain and has garnered much attention in recent years. Specifically, the effect that aerosol particles have on cloud formation is one…

Plant Stress in a Changing Environment: Using Plant Metabolomics to Improve Predictions of Biogenic Secondary Organic Aerosol Production

Lead Institution

University of California, Irvine

Principal Investigator

Celia Faiola

Project type

Large-Scale EMSL Research

This research addresses a critical barrier in our understanding of the processes controlling biogenic secondary organic aerosol formation (SOA), and how they are evolving in a changing environment…

Aerosol Aging and Climate Change (Cowin's NOAA, PNNL Scope #47840)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James Cowin

Project type

Exploratory Research

Using easily field-deployable, time-resolved aerosol collectors (TRAC and TAQ) create sample archives that permit quantitative, single particle-size and elemental-composition analysis of mixed…

Analysis of Organic Oligomers Forming Secondary Aerosol from Wood Combustion-Derived Phenols

Lead Institution

University of California, Davis

Principal Investigator

Cort Anastasio

Project type

Large-Scale EMSL Research

Aqueous reactions of phenols will be studied in the laboratory using well defined solutions over a range of conditions (e.g., phenol mixture, oxidant and pH) as surrogates for atmospheric drops. The…

In-Situ Monitoring Electrode Surface Reactions Using High-Resolution Desorption Electrospray Ionization Mass Spectrometry (DESI-MS)

Lead Institution

Ohio University

Principal Investigator

Hao Chen

Project type

Large-Scale EMSL Research

Probing the real-time chemical processes on the electrode surfaces is crucial for obtaining fundamental understanding of redox mechanisms and the nature of active intermediates involved in…

Fundamental Studies of Ice Nucleation Using Environmental Scanning Electron Microscope (ESEM)

Lead Institution

Purdue University

Principal Investigator

Alexander Laskin

Project type

Large-Scale EMSL Research

The proposed research is to demonstrate applicability of a novel experimental platform for systematic studies of ice nucleation efficiency of atmospheric particles with determination of…

Understanding Reactive Nitrogen Recycling on Soil and Mineral Dust Surfaces

Lead Institution

Indiana University - Bloomington

Principal Investigator

Jonathan Raff

Project type

Large-Scale EMSL Research

A fundamental understanding of the factors controlling the lifetime and fate of reactive nitrogen oxides (NOy = NO, NO2, HNO2, N2O5, etc.) in the atmosphere is critical for accurately representing…

In Situ Probe of Oxidation at Environmental Interfaces (Cowin's LDRD, PNNL Scope #48767)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James Cowin

Project type

Exploratory Research

Provide/greatly-enhance the ability to apply powerful vacuum based analytical techniques to real time studies of the reaction of surfaces and particles to reactive and damp gases.

The Role of Ice and Aerosol Surfaces in Halogen Activation in the Arctic Springtime Boundary Layer

Lead Institution

University of Alaska Fairbanks

Principal Investigator

William Simpson

Project type

Large-Scale EMSL Research

The UAF research group of Prof. Simpson is performing an intensive field campaign in Barrow, Alaska during March 2007. The goal of this field campaign is to quantify the amounts of reactive bromine …

Surface-Induced Dissociation of Complex Ions on an LTQ/Orbitrap Mass Spectrometer

Lead Institution

Purdue University

Principal Investigator

Julia Laskin

Project type

Large-Scale EMSL Research

Mass spectrometry is unique among instrumental analysis techniques in terms of its extraordinary sensitivity, molecular specificity and utility for addressing key questions in a broad range of…

A Systematic Investigation of the Effect of Ammonia on Scattering and Absorption of Solar Radiation by Secondary Organic Aerosols

Lead Institution

University of California, Davis

Principal Investigator

Christopher Cappa

Project type

Large-Scale EMSL Research

Atmospheric aerosols have a profound effect on climate by scattering and absorbing solar and terrestrial radiation. They can be predominantly scattering (e.g., sea-salt aerosol), predominantly…

Chemical Imaging of Airborne Soil Organic Particles from Land-atmosphere Interactions

Lead Institution

Purdue University

Principal Investigator

Alexander Laskin

Project type

Large-Scale EMSL Research

Recent discovery of solid (glassy) atmospheric soil organic particles (ASOP), emitted through atmosphere-land-surface interactions in the area of Southern Great Plains (SGP) suggests that ASOP may…

Optical and Hygroscopic Properties of Atmospheric Aerosols (A Laskin's ASP, PNNL Scope #47767)

Lead Institution

Purdue University

Principal Investigator

Alexander Laskin

Project type

Exploratory Research

Conduct laboratory studies of chemical composition, optical and hygroscopic properties of field collected atmospheric aerosols.

The Cloud Nucleating Properties of Aerosols at a Continental Site: CHAPS Study

Lead Institution

Shenyang Pharmaceutical University

Principal Investigator

Jian Wang

Project type

Large-Scale EMSL Research

The primary goal of The Cumulus Humilis Aerosol Processing Study (CHAPS) is to characterize and contrast freshly emitted aerosols above, within and below fields of cumulus humilis (or fair-weather…

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…

Effects of anthropogenic pollution on Amazonian aerosol composition and climate relevant properties

Lead Institution

Universidade de Sao Paulo

Principal Investigator

Paulo Artaxo

Project type

Large-Scale EMSL Research

DOE and Brazilian agencies have funded the multi-year GoAmazon research program from 1 January 2014 through 31 December 2015 to quantify and understand how aerosol and cloud life cycles in a…

Environmental Photochemical Catalysis and Microphysical Properties of Fe-Organic Aerosols

Lead Institution

Purdue University

Principal Investigator

Alexander Laskin

Project type

Large-Scale EMSL Research

The intent of this collaborative research is to investigate photo-catalytic effects of atmospheric aging on the chemical composition and the microphysical properties of secondary organic aerosol (SOA…

Use of SEM/EDX Analysis to Study the Oxidation of Aerosol by Hydroxyl Radical

Lead Institution

University of California, Irvine

Principal Investigator

Barbara Finlayson-Pitts

Project type

Exploratory Research

Unique chemistry at the air-water interface between chloride ion in sea salt aerosol and the hydroxyl radical (OH) has been suggested to play a major role in the production of increased levels of…

Evaluation of Municipal Incinerator Contribution to Spokane PM

Lead Institution

Washington State University

Principal Investigator

Dennis Finn

Project type

Exploratory Research

The proposed project is designed to evaluate the what, if any contributions are made to particulate matter loading in Spokane, Washington due to emissions from the municipal waster incinerator west…

Elemental analysis of bulk aerosol samples collected with Drum impactor during MCMA 2003 field study.

Lead Institution

University of California, San Diego

Principal Investigator

Mario Molina

Project type

Exploratory Research

This study is part of a larger international monitoring effort, which took place in Mexico City in April-May 2003. As a part of the study, time resolved aerosol samples were collected during MCMA…

Impact of phase state and viscosity of organic aerosol particles on the reactive uptake of carbonyls in secondary organic aerosol (SOA) formation

Lead Institution

Harvard University

Principal Investigator

Scot Martin

Project type

Large-Scale EMSL Research

Secondary organic aerosol (SOA) is a major constituent of submicron atmospheric aerosol particles, whose effects on climate and human health remain highly uncertain. Until very recently SOA particles…

Investigation of the Aerosol Impact on the Surface-Atmosphere Interactions

Lead Institution

Purdue University

Principal Investigator

Alexander Laskin

Project type

FICUS Research

This project will provide a physicochemical description of individual atmospheric particles collected in the SAIL experiment, where we will conduct systematic studies of composition and physical…

Laboratory Studies of Gas-Particle Reaction Kinetics of Particulates Emitted from Aircraft
(Summer Research Institute, PNNL Scope #16248)

Lead Institution

University of Dayton Research Institute

Principal Investigator

Jeremy Cain

Project type

Exploratory Research

The proposed research involves design parameters of an experiment used to study the heterogeneous reaction kinetics of particulates emitted from aircraft. Preliminary investigations of heterogeneous…

Characterization of Aerosol Organics by LC-MSn

Lead Institution

Desert Research Institute

Principal Investigator

Barbara Zielinska

Project type

Large-Scale EMSL Research

In summer, 2009, a comprehensive field study is planned to characterize the effect of organics on the water activity of atmospheric particles under sub- and supersaturated conditions at the Desert…

Molecular Characterization of Organic Aerosols from the Los Angeles
Ground Site (CalNex 2010) Using High-Resolution Mass Spectrometry

Lead Institution

University of California, Irvine

Principal Investigator

Sergey Nizkorodov

Project type

Limited Scope

The objective of the proposed project is to perform detailed, molecular level characterization of the chemical composition of organic aerosol (OA) samples collected during the CalNex 2010 study (May…

The Effect of Biogenic-Anthropogenic Interactions on the Physical and Chemical Properties of Atmospheric Organic Aerosols

Lead Institution

University of California, Irvine

Principal Investigator

Sergey Nizkorodov

Project type

Special Science

Understanding the effect of biogenic-anthropogenic interactions on the chemical composition and physical properties of organic aerosols (OA) is important for accurate modeling of the effect of OA on…

Chemical Imaging of Particles from TRACER field study

Lead Institution

Washington University in St. Louis

Principal Investigator

Rajan Chakrabarty

Project type

Large-Scale EMSL Research

This project will provide a physico-chemical description of individual atmospheric particles collected during the TRACER campaign, during which we will conduct systematic studies of composition and…

Chemistry of Aerosols in Mexico City: MILAGRO 2006 study.

Lead Institution

Lawrence Berkeley National Laboratory

Principal Investigator

Mary Gilles

Project type

Large-Scale EMSL Research

The MILAGRO (Megacity Initiative: Local and Global Research Observations) Campaign in Mexico City 2006 was a collaborative effort with the DOE Atmospheric Science Program, the NSF MIRAGE-Mex field…

Secondary Organic Aerosol Production in Biomass Combustion Plumes

Lead Institution

Colorado State University

Principal Investigator

Jeffrey Collett

Project type

Large-Scale EMSL Research

The goal of this research project is to identify chemical composition of secondary organic aerosol (SOA) produced in smoke plumes from biomass combustion. The project will focus on identifying new…

Molecular Chemistry of Secondary Organic Aerosol Formed in Photochemical Aging of Primary Anthropogenic Emissions

Lead Institution

University of California, Irvine

Principal Investigator

Sergey Nizkorodov

Project type

Large-Scale EMSL Research

We propose to examine molecular level processes taking place in anthropogenic secondary organic aerosols (SOA) using recently developed tools of high resolution mass spectrometry. The proposed…

Atmospheric Ecometabolomics

Lead Institution

University of California, Irvine

Principal Investigator

Alex Guenther

Compounds such as alpha-pinene, isoprene, ethene and methanol are well known to sub-disciplines in both geosciences and biology. They are known as biogenic volatile organic compounds (BVOC) to…

Chemical and Physical Properties of Biomass Burning Aerosol

Lead Institution

Colorado State University

Principal Investigator

Jenny Hand

Project type

Large-Scale EMSL Research

Biomass burning is one of the most important single sources of carbonaceous particles emitted into atmosphere mostly as a result of wilderness fires. Biomass burning aerosols (BBA) have dramatic…

Development and Applications of Novel Approaches for Analysis of Organic Aerosols using High-resolution Mass Spectrometry.

Lead Institution

Fudan University

Principal Investigator

Xin Yang

Project type

Large-Scale EMSL Research

The objective of the proposed research is to develop and apply new approaches for detailed, molecular-level characterization of the chemical composition of organic aerosols using atmospheric pressure…

Environmental Chemistry of Soot Particles

Lead Institution

Stanford University

Principal Investigator

Hai Wang

Project type

Large-Scale EMSL Research

We propose to examine molecular composition of laboratory-generated and aircraft engine soot using complementary methods of chemical analysis. First, soot will be examined using IR spectroscopy in a…

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