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Alexander Laskin

Institution
Purdue University
ORCID
ORCID logo 0000-0002-7836-8417

Projects

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…

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)…

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…

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…

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…

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…

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…

Aerosol properties and processes in remote marine environment

Lead Institution
Washington University in St. Louis
Principal Investigator
Jian Wang
Project type
Large-Scale EMSL Research
With their extensive coverage, low clouds greatly impact global climate. Presently, low clouds are poorly represented in global climate models (GCMs), and the response of low clouds to changes in…

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,…

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,…

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…

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…

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…

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…

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…