研究领域
The application of analytical/physical chemistry to air and water quality issues is the focus of my group's research activities. Out approach is to: (1) identify the source and extent of contamination; (2) determine how specific contaminants are transported through an ecosytem or airshed; and (3) ascertain their ultimate environmental fate. Field samples are analyzed through a variety of spectroscopic and chromatographic techniques. Finally, we use artificial neural networks to help us match contaminant samples with potential sources. Currently funded research includes:
1) Mathematical modeling of aqueous equilbiria using 3-D trend surpfaces (topos). Software that implements the calculations are embedded as Visual Basic macros in Excel spreadsheets so that no new software need be purchased to use them.
2) Honey bees as biomonitors for compounds used or produced by the military. We have developed highly instrumented bee hives to monitor bee activity and collect for analysis samples of hive air, honey, bees wax and whole bees (see web site).
3) Identification and reduction of air contaminants in urban mountain valleys. We are using thermal desorption/gas chromatography/mass spectrometry to identify various forms of air contaminants. One objective is to identify and reduce organosulfur compounds responsible for odors from kraft pulp mills.
4) 3-D fluorescence of polycyclic aromatic hydrocarbon mixtures. We have developed spectroscopic techniques for tracking underground movement of diesel plumes and remediation of creosote-contaminated soils.
Because I am active on quasi-legislative/quasi-judicial environmental boards, my students often work at the science/policy interface. We routinely interact with environmental directors from industry and regulatory officials at the local, state and federal level.
近期论文
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G.C. Smith, M.M. Hossain, P. MacCarthy, 2014, 3-D Surface Visualization of pH Titration “Topos”: Equivalence Point Cliffs, Dilution Ramps and Buffer Plateaus, J. Chem Educ.91(2), 225-231. Also http//dx.doi.org/10.1021/ed400297t.
G.C. Smith, 2013, Bringing SENCER’s Civic Engagement Strengths to Large Research Universities: A “Trojan Horse” Hybrid Model to Initiate Incremental Course Reform. In Science and Civic Egagement: The Next Level, R. Sheardy and D. Burns, eds, ACS Symp. Ser. No. 1121, American Chemical Society, Washington, D.C., 91-110.
T. Sardot and G.Smith, G., 2012, Investigating PP/LDPE/PEVA Miscibility of Cardboard Recycling's Mixed Plastic Waste by DSC and SEM. In Environmental Science and Technology, 2012 Vol. 2. G. Sorial and J. Hong, eds. American Science Press, Houston, USA, pp 1-632, ISBN: 9780976885344..
G.C. Smith, M.M. Hossain, P. MacCarthy, 2012, Why Batteries Deliver a Fairly Constant Voltage until Dead, J Chem Educ, 89(11): 14-16-1420. Also http://dx.doi.org/10.1021/ed200211s.
T. Sardot, G.C. Smith, A.G. McDonald, 2012, Valorizing Mixed Plastic Wastes from CardboardRecycling by Amendment with Wood, Cement and Ash, J Reinf. Plast. Comp., in press.
T. Sardot, A.G. McDonald, G.C. Smith, 2012, Characterization of a Cardboard Recycling Facility’s Mixed Plastic Waste for Beneficial Use, Waste Biomass Valor, 4(1): 161-171.
G.C. Smith and J.E.. Spencer, 2010, Program Book, 24th National Conference on Undergraduate Research, The University of Montana, April 15-17, The University of Montana, Missoula, Montana, 234 p.
D. Jones, T. Ward, D. Vanek, N. Marra, C. Noonan, G. Smith, E. Adams, 2007, Air Toxics Under The Big Sky – A High School Science Teaching Tool, Sci. Educ. Civic Engag.,, 1:51-56.
E. Adams, G. Smith, T. Ward, D. Vanek, N. Marra, D. Jones, M. Henthorn, J. Striebel, 2007, Air Toxics Under the Big Sky – A Real World Investigation to Engage High School Science Students, J. Chem Educ., 85:221-224.
T.J. Ward and G.C. Smith, 2005, Vapor-Phase and PM2.5 Concentrations of Polycyclic Aromatic Hydrocarbons Measured During the Winter Months in a Northern Rocky Mountain Urban Airshed, Journal of Air & Waste Manage. Assoc., 55:1007-1013.
T.J. Ward and G.C. Smith, 2005, The 2000/2001 Missoula Valley PM2.5 Chemical Mass Balance Study, Including the 2000 Wildfire Season - Seasonal Source Apportionment, Atmos. Environ., 39, 709-717.
T.J. Ward, R.F. Hamilton, Jr. and G.C. Smith, 2004, The Missoula, Montana PM2.5 Speciation Study - Seasonal Average Concentrations, Atmos. Environ., 38, 6371-6379.
G.C. Smith, 2004, Building Civic Engagement Capacity: An Introductory Chemistry Example, Liberal Education, 90(3), 40-45.
T.J. Ward and G.C. Smith, 2004, High Volume PUF vs. Low Volume PUF Sampling Comparison for Collecting Gas Plus Particulate Polycylic Aromatic Hydrocarbons, Aerosol Sci. and Tech., 38, 972-979.
D.L. Tooke, G.C. Smith and L. R. Griffin, 2003, Dispersion of Hydrogen Sulfide from Wastewater Lagoons at a Kraft Pulp Mill, Missoula, Montana: Including the 2000 Wildfire Season. In Proceedings of the 2003 TAPPI International Environmental Conference, D. Edelmann, ed., TAPPI (Technical Association of the Pulp and Paper Industry), 2003, 19 p.
J.J. Bromenshenk, C.B. Henderson and G.C. Smith, 2002, Performance Potential of Free-Flying Bees for the Detection of Landmines. In Alternatives for Landmine Detection, J.A. MacDonald and J.R. Lockwood, eds., RAND, MR-1608-OSTP, 273-283. (This is a “White Paper” report requested by the White House Staff.)
G.C. Smith, J.J. Bromenshenk, D.C. Jones and G. Alnassar, 2002, Volatile and Semi-Volatile Organic Compounds in Beehive Atmospheres. In Honey Bees: Estimating the Environmental Impact of Chemicals, J. Devillers and M-H. Pham-Delegue, eds., Taylor & Francis, London, p. 12-41.
J. Kapler Smith, N.E. McMurray and G.C. Smith, 2001, Educational Program about Wildland Fire Integrates Plant Science into Curriculum, Plant Sci Bull., 2001, 47(3) 86-90.
J.F. Sinski, G.C. Smith and J. Smith, 2001, Spectroscopy Based Neural Networks: Using 3-Dimensional Fluorescence Spectra and Artificial Neural Networks to Match Petroleum Contaminated Ground Water with Possible Sources, Sci. Comp. & Instr., 2001, 18(9), 22-30.
J.J. Bromenshenk, G.C. Smith, C.B. Henderson, B.E. King, M. Schreuder, R.A. Seccomb, M.Taylor, 2001, Aberdeen Proving Ground Bee Studies: New and Improved Methods for Monitoring Air Quality and the Terrestrial Environment: Applications at Aberdeen Proving Ground - Edgewood Area. Final Technical Report 1995-2000”, US Army Center for Environmental Health Research, Ft. Detrick, MD, 214p.