Stephen Toner
 

              Office:  Urey Hall 2132;   Phone: 858-534-7430 (office);   E-mail:  smtoner@ucsd.edu

                                   

                                    Contact:      Stephen Toner
                                                       University of California, San Diego
                                                       Dept. of Chemistry & Biochemistry,  0314
                                                       9500 Gilman Drive
                                                       La Jolla, CA. 92093-0314

 

 

 

If you have an ATOFMS instrument and would like to have your group trained in tuning & using the instrument, as well as in data analysis using the YAADA toolset in Matlab, I am available for consulting.  If you are interested in my services, please email me at the above address.

 

                                     
Field Studies

Aug. 1, 2001:  Heavy Duty Diesel mobile study with UCR CE-CERT mobile HDDV characterization rig (Riverside, CA)

July 22 - 26, 2002:  In lab testing of composite model rocket emissions (UCSD)

Aug. 23 - Sept. 17, 2002:  Light Duty Vehicle Dyno testing at CARB (El Monte, CA)

Sept. 23, 2002:  Minute Man SR19 II Rocket Motor characterization study (Hill Air Force Base, Utah)

Sept. 24 - Oct 4, 2002:  Low Emission Boiler System coal and stove biomass burning  (U. Utah, Utah)

May 15 - July 8, 2003:  Heavy Duty Diesel Dyno Testing (Riverside, CA)

July 17 - Aug. 25, 2004:  Freeway side ambient sampling (I-5, San Diego, CA)

June 22 - July 2, 2005:  Multivariate data analysis using Positive Matrix Factorization  (Clarkson Univ. - Potsdam, NY)

Oct 31 - Nov 21, 2005:  Secondary Organic Aerosols in Riverside II (SOAR II); (Riverside, CA)

 

Instrumentation

Aerosol Time of Flight Mass Spectrometry (ATOFMS) Gas Chromatography (GC)  and   Head-space GC
Ultrafine Aerosol Time of Flight Mass Spectrometry Cyclic Voltammetry
Gas Chromatography - Mass Spectrometry (GC-MS) Stripping Voltammetry
Direct Probe Mass Spectrometry (DIP-MS)  with a quadrupole mass spectrometer Differential Pulse Polarography
Neutron Activation
Inductively Coupled Plasma Mass Spectrometry (ICP-MS) Differential Mobility Analyzer (DMA)
Graphite Furnace Atomic Absorbtion (GFAA) Condensation Particle Counter (CPC)
Flame Atomic Absorption Spectroscopy Scanning Mobility Particle Sizer (SMPS)
FT-IR and UV/Vis Spectroscopy Lasers (Nd:YAG, CO2, He-Ne, diode pumped...)
High Performance Liquid Chromatography (HPLC)  

    

Publications

 

Toner, S.M., R.C. Moffet, M. Dall’Osto, R.M. Harrison, and K.A. Prather, Source apportionment of PM2.5 in Athens (Greece) and Mexico City using an ATOFMS derived mass spectral source library, to be submitted to Atmospheric Environment, 2007.
 
Toner, S.M., L.G. Shields, and K.A. Prather, Source apportionment of freeway-side PM2.5 using ATOFMS, Atmospheric Environment, submitted, 2007.
 
Toner, S.M., D.A. Sodeman, and K.A. Prather, Single particle analysis of a Minuteman SR19 II rocket motor exhaust plume using aerosol time-of-flight mass spectrometry, to be submitted to Atmospheric Science & Technology, 2007.
 
Toner, S.M., L.G. Shields, D.A. Sodeman, and K.A. Prather, Using mass spectral source signatures to apportion exhaust particles from gasoline and diesel powered vehicles in a freeway study using UF-ATOFMS, Atmospheric Environment, doi:10.1016/j.atmosenv.2007.08.005, 2007.


Toner, S.M., D.A. Sodeman, and K.A. Prather, Single particle characterization of ultrafine and accumulation mode particles from heavy duty diesel vehicles using aerosol time-of-flight mass spectrometry, Environmental Science & Technology, 40 (12), 3912-
3921, 2006.
 
Qin, X., L.G. Shields, S.M. Toner, and K.A. Prather. Single Particle Characterization in Riverside, CA during the SOAR 2005 Campaign – Part 1: Seasonal Comparisons, manuscript in preparation, 2007.
 
Shields, L.G., X. Qin, S.M. Toner, and K.A. Prather. Aging effects on source apportionment from the single particle perspective, manuscript in preparation, 2007.
 
Shields, L.G., X. Qin, S.M. Toner, S.V. Hering, and K.A. Prather.  Detection of ambient ultrafine aerosols by single particle techniques during the SOAR 2005 campaign, manuscript in preparation, 2007.
 
Qin, X., L.G. Shields, S.M. Toner, and K.A. Prather. The Effect of APS Scaling Functions on the Quantification of Aerosol Time-of-Flight Mass Spectrometry Measurements, manuscript in preparation, 2007.
 
Shields, L.G., X. Qin, S.M. Toner, and K.A. Prather. Characterization of Trace Metals in Single Urban Particles during the SOAR 2005 Campaign, manuscript in preparation, 2007.
 
Spencer, M. T., L.G. Shields, D.A. Sodeman, S.M. Toner, and K.A. Prather. Comparison of oil and fuel particle chemical signatures with particle emissions from heavy and light duty vehicles. Atmospheric Environment, 40, 5224-5235, 2006.
 
Sodeman, D.A., S.M. Toner, and K.A. Prather, Determination of single particle mass spectral signatures from light duty vehicle emissions, Environmental Science & Technology, 39 (12), 4569-4580, 2005.

 

                                   
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