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…

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…

Physicochemical Analysis and Ice Nucleation Potential of Particles from a Tropical Terrestrial Biosphere Impacted by Anthropogenic Emissions

Lead Institution

State University of New York at Stony Brook

Principal Investigator

Daniel Knopf

Project type

Large-Scale EMSL Research

The Amazonian region has been documented to be a source of a wide range of aerosol particle types including biogenic secondary organic aerosol (SOA) and salts, primary biological aerosol particles,…

Open Ocean Ship-Board Study of Atmospheric Aerosols at the Equatorial Pacific: Characterizing Iron in Marine Aerosol

Lead Institution

Central Washington University

Principal Investigator

Anne Johansen

Project type

Large-Scale EMSL Research

Iron is a growth-limiting nutrient to phytoplankton in the open ocean, but its sources, chemistry and physical forms are largely unknown. Since phytoplankton control global climate by producing ~50%…

High resolution mass spectrometry of high molecular weight compounds formed via the heterogeneous reaction of OH with simple organic aerosols

Lead Institution

Lawrence Berkeley National Laboratory

Principal Investigator

Kevin Wilson

Project type

Large-Scale EMSL Research

Our objective is to determine the fundamental reaction rates and mechanisms for the heterogeneous oxidation of organic aerosols by OH radicals. Single component organic aerosols particles are used…

Environmental Chemistry of Fe-containingMineral Dust Particles

Lead Institution

Lawrence Berkeley National Laboratory

Principal Investigator

Mary Gilles

Project type

Large-Scale EMSL Research

Iron is a key element for growth and metabolism in marine organisms. Solubilization of iron in mineral dust particles resulting from its atmospheric chemistry may substantially increase its…

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…

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…

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)…

Chemistry of Secondary Organic Aerosol (SOA) in the Ambient Atmosphere: Molecular Level Analysis of Size Resolved SOA Samples Using High Resolution Mass Spectrometry.

Lead Institution

University of California, Berkeley

Principal Investigator

Allen Goldstein

Project type

Exploratory Research

The objective of our research is to study the fundamental chemistry in the formation and aging of secondary organic aerosols (SOA) in the atmosphere. A large fraction of SOA has been shown to be…

GOAmazon: Atmospheric Aerosol Phase, Composition, and Water Vapor Uptake

Lead Institution

Lawrence Berkeley National Laboratory

Principal Investigator

Mary Gilles

Project type

Large-Scale EMSL Research

Atmopsheric particle phase, viscosity, and mixing state are inherently intertwined with one another. How particles change and evolve, particularly as a function of relative humidity is crucial for…

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 …

Heterogeneous Ice Nucleation from Biomass Burning Particles: The Effect of Chemical
Composition and Chemical Aging

Lead Institution

State University of New York at Stony Brook

Principal Investigator

Daniel Knopf

Project type

Large-Scale EMSL Research

Organic material is ubiquitous in atmospheric particles. This proposal focuses on potential ice nucleation (IN) activity of biomass burning aerosol (BBA). Biomass burning is a major source of gases…

Chemical characterization of organic and biogenic atmospheric aerosol particles and their potential to initiate ice crystal formation

Lead Institution

State University of New York at Stony Brook

Principal Investigator

Daniel Knopf

Project type

Large-Scale EMSL Research

Atmospheric aerosol particles can affect the environment by changing the global radiative budget, increasing air pollution and impacting air quality with subsequent consequences for health related…

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…

Single Particle Laboratory Studies of Heterogeneous Reactions of Trace Atmospheric Gases with Particles Present in the Troposphere

Lead Institution

University of Iowa

Principal Investigator

Vicki Grassian

Project type

Exploratory Research

It is becoming increasingly clear that heterogeneous processes involving particulate matter in the atmosphere can greatly perturb the chemical composition of both the troposphere and the…

Probing the Reactivity of Organic Particles Using Ion Soft-Landing

Lead Institution

University of California, Irvine

Principal Investigator

Sergey Nizkorodov

Project type

Large-Scale EMSL Research

Formation and atmospheric processing of particulate matter is one of the focus areas emphasized by EMSL. Organic coatings on atmospheric aerosols determine the surface chemistry that particles…

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…

Ice Nucleation Propensity of Biological Particles

Lead Institution

Xiamen University

Principal Investigator

Bingbing Wang

Project type

Large-Scale EMSL Research

The proposed study will investigate the ice nucleation propensity of atmospheric biological particles using a novel experimental platform developed in EMSL by our group. We will determine…

Photochemical Processing of Organic Aerosol Particles Studied with High-Resolution Mass Spectrometry

Lead Institution

University of California, Irvine

Principal Investigator

Sergey Nizkorodov

Project type

Large-Scale EMSL Research

This research will focus on direct photochemical processing of organic aerosol particles by solar radiation. It will address the following important questions: (1) How do direct photochemical…

Probing atmospheric chemistry of aerosols to gain insights into cloud condensation
behavior

Lead Institution

University of California, San Diego

Principal Investigator

Kimberly Prather

Project type

Large-Scale EMSL Research

This proposal focuses on performing off-line complementary measurements of single particles in an effort to better understand single particle chemistry, morphology, metal speciation, CCN ability,…

Molecular Characterization of Secondary Organic Aerosol Formed via Aqueous-phase Reactions of Phenolic Compounds

Lead Institution

University of California, Davis

Principal Investigator

Qi Zhang

Project type

Large-Scale EMSL Research

The main objective of this proposed project is to perform detailed, molecular- level characterization of the chemical composition of secondary organic aerosol formed via aqueous-phase reactions of…

Effect of Condensed-Phase Photochemical Reactions on Viscosity and Volatility of Organic Aerosols

Lead Institution

University of California, Irvine

Principal Investigator

Manabu Shiraiwa

Project type

Large-Scale EMSL Research

Recent advances in understanding aerosol chemistry strongly suggest that: (1) photochemical processes occurring inside aerosol particles represent an important mechanism of aging for organic aerosols…

Morphology and composition of encoded segmented metal oxide nanowires

Lead Institution

Southern Illinois University

Principal Investigator

Andrei Kolmakov

Project type

Exploratory Research

The recent interest in one-dimensional semiconducting nanostructures is based on their possible operation as ultrasmall active elements in applications such as nanoelectronics, optoelectronics,…

Heterogeneous Photochemistry of Organic-Coated Mineral Dust Aerosol

Lead Institution

University of Iowa

Principal Investigator

Vicki Grassian

Project type

Large-Scale EMSL Research

The proposed research will apply state-of-the-art mass spectrometric approaches developed for large complex molecules to interrogate chemical composition of Humic Like Substanses. Specifically, we…

Reactive Spectro-microscopy Studies of Substrate-Deposited of Organic Aerosol Particles

Lead Institution

University of Iowa

Principal Investigator

Alexei Tivanski

Project type

Large-Scale EMSL Research

This project seeks to characterize the chemical and morphological changes of individual atmospheric particles during chemical transformations. Chemical transformations include oxidation of these…

Sulfur Isotope Fractionation Analysis of Individual Atmospheric Particles

Lead Institution

Purdue University

Principal Investigator

Alexander Laskin

Project type

Large-Scale EMSL Research

We propose a set of laboratory studies focused on understanding of chemical forms, oxidation states, and isotopic fractionation of sulfur in atmospherically aged particles collected in a number of…

Projects