Mobile Lab Instruments

Species Name Description PI Affiliation

Gas Phase Species

O3

ozone

A. Lambe

Aerodyne

CO2

LiCOR CO2

Non-dispersive Infrared detection

T. Yacovitch

Aerodyne

CO, N2O

TILDASs

Tunable IR laser direct absorption spectroscopy

T. Yacovitch

Aerodyne

CH4

TILDASs

Tunable IR laser direct absorption spectroscopy

T. Yacovitch

Aerodyne

C2H6

TILDASs

Tunable IR laser direct absorption spectroscopy

T. Yacovitch

Aerodyne

HCHO

TILDASs

Tunable IR laser direct absorption spectroscopy

J. Roscioli

Aerodyne

HCN

TILDASs

Tunable IR laser direct absorption spectroscopy

S. Herndon

Aerodyne

Total Hydrocarbons

THC

CAI Flame ionization detection

T. Yacovitch, B. Knighton

Aerodyne

NO, NOy

NOx box

O3 Chemiluminescence, catalytic conversion

C. Daube

Aerodyne

NO2

CAPS-NO2

Cavity Attenuated Phase Shift Spectrometry NO2 (CAPS-NO2)

T. Onasch

Aerodyne

VOCs

PTR-MS

Proton-Transfer Reaction Mass Spectrometry

B. Knighton

Montana State

VOCs, SVOCs, HONO, PA radical

I- CIMS

Iodide ion chemical ionization mass spectrometry, may be converted to NO3- ion CIMS for stack meas.

J. Nowak

Aerodyne

Gas and Particle partitioning

FIGAERO

Filter Inlet for Gases and AEROsols collector module with I- CIMS

J. Nowak

Aerodyne

HO2 + RO2

ECHAMP

C2H6/NO chemical amplification – CAPS

E. Wood

UMassAmherst


Aerosol Measurements

Fine Mode Composition

LToF SP-AMS

Aerosol mass spectrometer with high resolution time-of-flight MS, with Soot particle mode

T. Onasch

Aerodyne

Particle size and number

SMPS, OPC, CPC

Scanning mobility particle sizer, Optical particle counter, Particle number concentration.

T. Onasch

Aerodyne

CAPS-SSA

SSA at 405nm and 780nm

particle-based total optical extinction and scattering

T. Onasch

Aerodyne

Potential Aerosol Mass

PAM

Measure of changes in aerosol mass, chemistry and other properties in a flow reactor at high reactant (e.g. OH) concentrations

Lambe, T. Onasch, S. Herndon

Aerodyne

particulate organic nitrates

TD-CAPS

Thermal-Dissociation- Cavity Attenuated Phase Shift Spectroscopy (CAPS)

E. Wood

UMassAmherst

rBC

Single Particle Soot Photometer (SP2)

Single Particle Soot Photometer (SP2) Black carbon MMR, microphysical state, coating thickness

A. Sedlacek

BrookhavenNL


Instrument Coordinator: Scott Herndon, Aerodyne Research