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Atmospheric Science & Global Change

Staff information


Xiao-Ying Yu

Atmospheric Measurement & Data Sciences
Chemical Engineer
Pacific Northwest National Laboratory
PO Box 999
MSIN: K9-24
Richland, WA 99352


Dr. Yu graduated with a Bachelor in Science & Engineering in material sciences and engineering from Beijing Polytechnic University. She then was trained as a physical chemist and kineticist at the University of Michigan, Ann Arbor, MI. She did her postdoctoral research at Brookhaven National Laboratory. Prior to joining Pacific Northwest National Laboratory (PNNL), Dr. Yu was a staff scientist at the Colorado State University, Fort Collins, CO.

Dr. Yu's research has evolved to understand interfacial phenomena at the fundamental atomic and molecular level that are relevant to the observed changes across multiple time and space scales in the environment, with implications in biological systems (e.g., biofilm and cell), aerosol, catalysis, and materials. Currently she leads the development of a novel molecular imaging tool based on microfluidics at PNNL, which has resulted in two patents. Direct in situ observations of complex liquid surfaces and liquid and solid interfaces were enabled by her unique chemical imaging techniques. She has developed new concepts in aerosol sampling. One such example is the demonstration of the fast time-resolved aerosol collector using optical tagging. Dr. Yu has led and participated in many field studies for in situ measurements of aerosols and determination of their chemical compositions and physical characteristics. In addition, Dr. Yu is the chair of the DOE chemical exposure working group; and has led the development of the chemical mixture methodology for consequence assessment of toxic health effects since 2008.

Research Interests

  • Chemical imaging
  • Microfluidics
  • Interfacial reactions
  • Applied toxicology
  • Aerosols

Education and Credentials

  • Ph.D., Physical Chemistry, University of Michigan, Ann Arbor, MI
  • M.S., Chemistry, University of Michigan, Ann Arbor, MI
  • B.S. & Eng., Beijing Polytechnic University, Beijing, China

Affiliations and Professional Service

Awards and Recognitions

  • PNNL FCSD Staff Outstanding Performance Award for SALVI commercialization, 2015
  • PNNL IP Commercialization Recognition and Reward Program for SALVI FLC award, 2015
  • PI of the Federal Laboratory Consortium (FLC) Award for Excellence in Technology Transfer (Analytical Instrument): “SALVI: System for Analysis at the Liquid Vacuum Interface”, 2015
  • PI of the R&D 100 Award (Analytical Instrument): “SALVI: System for Analysis at the Liquid Vacuum Interface”, 2014
  • PNNL FCSD Exceptional Contributions to Program Award for SALVI innovations, 2014
  • DOE Pulse Featured Scientist,, 2014
  • PNNL FCSD Staff Outstanding Performance Award for leading SALVI development, 2014
  • PNNL IP Commercialization Recognition and Reward Program for SALVI R&D 100 Award, 2014
  • PNNL IP Commercialization Recognition and Reward Program for the issued SALVI patent, 2013
  • PNNL Technology Commercialization Champions for SALVI industrial licensing, 2012
  • PNNL Staff Outstanding Performance Award for the RPP-WTP M3 project, 2008
  • PNNL Staff Outstanding Performance Award for the Houston Triangle Experiment, 2006
  • Michigan Teaching Fellow, University of Michigan, 2000
  • Graduate Student Sloan Fellow, American Sloan Foundation, 1999
  • Silver Medal, Beijing University Students’ English Contest, 1993
  • Award of Excellency in Broadcasting Programs, Beijing Polytechnic University, 1992 - 1994

PNNL Publications


  • Zheng J., W. Zhang, F. Wang, and X. Yu. 2018. "Enabling liquid solvent structure analysis using hard x-ray absorption spectroscopy with a transferrable microfluidic reactor." Journal of Physics: Condensed Matter 30, no. 18:Article No. 18LT01. PNNL-SA-131647. doi:10.1088/1361-648X/aab87f


  • Du H., C. Qu, J. Liu, W. Chen, P. Cai, Z. Shi, and X. Yu, et al. 2017. "Molecular investigation on the binding of Cd (II) by the binary mixtures of montmorillonite with two bacterial species." Environmental Pollution 229. PNNL-SA-120883. doi:10.1016/j.envpol.2017.07.052
  • Huang D., X. Hua, G. Xiu, Y. Zheng, X. Yu, and Y. Long. 2017. "Secondary Ion Mass Spectrometry: The Application in the Analysis of Atmospheric Particulate Matter." Analytica Chimica Acta 989. PNNL-SA-119653. doi:10.1016/j.aca.2017.07.042
  • Kamble R., S.R. Sabale, P. Chikode, V. Puri, X. Yu, and S. Mahajan. 2017. "Studies on Fe3+ Doping Effect on Structural, Optical and Catalytic Properties of Hydrothermally Synthesized TiO2 Photocatalyst." Nanoscience and Nanotechnology-Asia 7, no. 2:230-242. PNNL-SA-121171. doi:10.2174/2210681207666161227160317
  • Komorek R.E., W. Wei, X. Yu, E.A. Hill, J. Yao, Z. Zhu, and X. Yu. 2017. "In Situ Characterization of Shewanella oneidensis MR1 Biofilms by SALVI and ToF-SIMS." Journal of Visualized Experiments. PNNL-SA-123316. doi:10.3791/55944
  • Ouyang K., X. Yu, Y. Zhu, C. Gao, Q. Huang, and P. Cai. 2017. "Effects of humic acid on the interactions between zinc oxide nanoparticles and bacterial bio?lms." Environmental Pollution 231, no. Part 1:1104-1111. PNNL-SA-132084. doi:10.1016/j.envpol.2017.07.003
  • Renslow R.S., M.J. Marshall, A.E. Tucker, W.B. Chrisler, and X. Yu. 2017. "In situ nuclear magnetic resonance microimaging of live biofilms in a microchannel." Analyst 142, no. 13:2363-2371. PNNL-SA-109594. doi:10.1039/C7AN00078B
  • Sabale S.R., P. Kandesar, V. Jadhav, R.E. Komorek, R.K. Motkuri, and X. Yu. 2017. "Recent Developments in Synthesis, Properties, and Biomedical Applications of Core/Shell Superparamagnetic Iron Oxide Nanoparticles with Gold." Biomaterials Science 5, no. 11:2212-2225. PNNL-SA-126076. doi:10.1039/C7BM00723J
  • Sui X., Y. Zhou, F. Zhang, J. Chen, Z. Zhu, and X. Yu. 2017. "Deciphering the Aqueous Chemistry of Glyoxal Oxidation with Hydrogen Peroxide Using Molecular Imaging." Physical Chemistry Chemical Physics. PCCP 19, no. 31:20357-20366. PNNL-SA-118186. doi:10.1039/C7CP02071F
  • Wang Z., Y. Zhang, B. Liu, K. Wu, S. Thevuthasan, D.R. Baer, and Z. Zhu, et al. 2017. "In Situ Mass Spectrometric Monitoring Of The Dynamic Electrochemical Process At The Electrode-Electrolyte Interface: A SIMS Approach." Analytical Chemistry 89, no. 1:960-965. PNNL-SA-122793. doi:10.1021/acs.analchem.6b04189
  • Wei W., Y. Zhang, R.E. Komorek, A.E. Plymale, R. Yu, B. Wang, and Z. Zhu, et al. 2017. "Characterization of Syntrophic Geobacter Communities Using ToF-SIMS." Biointerphases 12, no. 5:05G601. PNNL-SA-125721. doi:10.1116/1.4986832
  • Yao J., B.W. Arey, L. Yang, F. Zhang, R.E. Komorek, J. Chun, and X. Yu. 2017. "In Situ Characterization of Boehmite Particles in Water Using Liquid SEM." Journal of Visualized Experiments. PNNL-SA-123903. doi:10.3791/56058
  • Yao J., D. Lao, X. Sui, Y. Zhou, S.K. Nune, X. Ma, and T. Troy, et al. 2017. "Two Coexisting Liquid Phases in Switchable Ionic Liquids." Physical Chemistry Chemical Physics. PCCP 19, no. 34:22627-22623. PNNL-SA-122167. doi:10.1039/C7CP03754F
  • Yao J., Y. Zhou, X. Sui, D. Lao, D.J. Heldebrant, Z. Zhu, and X. Yu. 2017. "Errata: Switchable 1, 8-diazabicycloundec-7-ene and 1-hexanol ionic liquid analyzed by liquid ToF-SIM." Surface Science Spectra 24, no. 1:018001. PNNL-SA-124584. doi:10.1116/1.4978877
  • Yu X. 2017. "Imaging mass spectrometry tackles interfacial challenges in electrochemistry." Current Opinion in Electrochemistry 6, no. 1:53-59. PNNL-SA-127954. doi:10.1016/j.coelec.2017.10.025
  • Yu X., J. Yu, Y. Zhou, Y. Zhang, J. Wang, J.E. Evans, and X. Yu, et al. 2017. "An Investigation of the Beam Damage Effect on In situ Liquid Secondary Ion Mass Spectrometry Analysis." Rapid Communications in Mass Spectrometry 31, no. 23:2035-2042. PNNL-SA-127706. doi:10.1002/rcm.7983


  • Ding Y., Y. Zhou, J. Yao, C.J. Szymanski, J.K. Fredrickson, L. Shi, and B. Cao, et al. 2016. "In Situ Molecular Imaging of the Biofilm and Its Matrix." Analytical Chemistry 88, no. 22:11244-11252. PNNL-SA-121602. doi:10.1021/acs.analchem.6b03909
  • Hua X., C.J. Szymanski, Z. Wang, Y. Zhou, X. Ma, J. Yu, and J.E. Evans, et al. 2016. "Chemical imaging of molecular changes in a hydrated single cell by dynamic secondary ion mass spectrometry and super-resolution microscopy." Integrative Biology 8, no. 5:579-666. PNNL-SA-110602. doi:10.1039/c5ib00308c
  • Sabale S.R., J. Zheng, V.S. Vemuri, X. Yu, B.P. McGrail, and R.K. Motkuri. 2016. "Recent Advances in Metal-Organic Frameworks for Heterogeneous Catalyzed Organic Transformations." Synthesis and Catalysis : Open Access 1, no. 1:Article No. 5. PNNL-SA-122322.
  • Yao J., Y. Zhou, X. Sui, D. Lao, D.J. Heldebrant, Z. Zhu, and X. Yu. 2016. "Switchable 1,8-diazabicycloundec-7-ene and 1-hexanol ionic liquid analyzed by liquid ToF-SIMS." Surface Science Spectra 23, no. 1:9-28. PNNL-SA-114576. doi:10.1116/1.4948526
  • Yu J., Y. Zhou, X. Hua, S. Liu, Z. Zhu, and X. Yu. 2016. "Capturing the transient species at the electrode-electrolyte interface by in situ dynamic molecular imaging." Chemical Communications 52, no. 73:10952-10955. PNNL-SA-120282. doi:10.1039/C6CC02893D
  • Yu J., Y. Zhou, X. Hua, Z. Zhu, and X. Yu. 2016. "In Situ Characterization of Hydrated Proteins in Water by SALVI and ToF-SIMS." Journal of Visualized Experiments. PNNL-SA-110334. doi:10.3791/53708
  • Zhou Y., J. Yao, Y. Ding, J. Yu, X. Hua, J.E. Evans, and X. Yu, et al. 2016. "Improving the Molecular Ion Signal Intensity for In Situ Liquid SIMS Analysis." Journal of the American Society for Mass Spectrometry 27, no. 12:2006-2013. PNNL-SA-118036. doi:10.1007/s13361-016-1478-x


  • Hua X., M.J. Marshall, Y. Xiong, X. Ma, Y. Zhou, A.E. Tucker, and Z. Zhu, et al. 2015. "Two-dimensional and three-dimensional dynamic imaging of live biofilms in a microchannel by time-of-flight secondary ion mass spectrometry." Biomicrofluidics 9, no. 3:Article No. 031101. PNNL-SA-105631. doi:10.1063/1.4919807
  • O'Brien R., B. Wang, A. Laskin, N. Riemer, M. West, Q. Zhang, and Y. Sun, et al. 2015. "Chemical Imaging of Ambient Aerosol Particles: Observational Constraints on Mixing State Parameterization." Journal of Geophysical Research. D. (Atmospheres) 120, no. 18:9591-9605. PNNL-SA-109208. doi:10.1002/2015JD023480
  • Shi H., J.A. Lercher, and X. Yu. 2015. "Sailing into uncharted waters: recent advances in the in situ monitoring of catalytic processes in aqueous environments." Catalysis Science & Technology 5, no. 6:3035-3060. PNNL-SA-107338. doi:10.1039/C4CY01720J


  • Ali H.M., M.J. Iedema, X. Yu, and J.P. Cowin. 2014. "Ionic strength dependence of the oxidation of SO2 by H2O2 in sodium chloride particles." Atmospheric Environment 89. PNNL-SA-93716. doi:10.1016/j.atmosenv.2014.02.045
  • Hua X., X. Yu, Z. Wang, L. Yang, B. Liu, Z. Zhu, and A.E. Tucker, et al. 2014. "In situ molecular imaging of hydrated biofilm in a microfluidic reactor by ToF-SIMS." Analyst 139. PNNL-SA-99617. doi:10.1039/C3AN02262E
  • Liu B., D. Du, X. Hua, X. Yu, and Y. Lin. 2014. "Papers Based Electrochemical Biosensors: From Test Strips to Paper-Based Microfluidics." Electroanalysis 26, no. 6:1214-1223. PNNL-SA-100339. doi:10.1002/elan.201400036
  • Liu B., X. Yu, Z. Zhu, X. Hua, L. Yang, and Z. Wang. 2014. "In situ chemical probing of the electrode-electrolyte interface by ToF-SIMS." Lab on a Chip 14, no. 5:855-859. PNNL-SA-97864. doi:10.1039/C3LC50971K
  • Yang L., Z. Zhu, X. Yu, G. Rodek, L.V. Saraf, S. Thevuthasan, and J.P. Cowin. 2014. "In situ SEM and ToF-SIMS analysis of IgG conjugated gold nanoparticles at aqueous surfaces." Surface and Interface Analysis 46, no. 4:224-228. PNNL-SA-90291. doi:10.1002/sia.5252


  • Lance S., T. Raatikainen, T.B. Onasch, D.R. Worsnop, X. Yu, M.L. Alexander, and M. Stolzenberg, et al. 2013. "Aerosol mixingstate, hygroscopic growth and cloud activation efficiency during MIRAGE 2006." Atmospheric Chemistry and Physics 13, no. 9:5049-5062. PNNL-SA-85477. doi:10.5194/acp-13-5049-2013
  • Leen B., X. Yu, M. Gupta, D.S. Baer, J.M. Hubbe, C.D. Kluzek, and J.M. Tomlinson, et al. 2013. "Fast In Situ Airborne Measurement of Ammonia Using a Mid-Infrared Off-Axis ICOS Spectrometer." Environmental Science & Technology 47, no. 18:10446-10453. PNNL-SA-94040. doi:10.1021/es401134u
  • Levy M., R. Zhang, A.F. Khalizov, J. Zheng, D.R. Collins, C.R. Glen, and Y. Wang, et al. 2013. "Measurements of submicron aerosols in Houston, Texas during the 2009 SHARP field campaign." Journal of Geophysical Research. D. (Atmospheres) 118, no. 18:10,518–10,534. PNWD-SA-10095. doi:10.1002/jgrd.50785
  • Moffet R.C., T. Rodel, S.T. Kelly, X. Yu, G. Carroll, J.D. Fast, and R.A. Zaveri, et al. 2013. "Spectro-Microscopic Measurements of Carbonaceous Aerosol Aging in Central California." Atmospheric Chemistry and Physics 13, no. 20:10445-10459. PNNL-SA-93724. doi:10.5194/acp-13-10445-2013
  • Petrocchi R., D.K. Craig, J. Bond, D.M. Trott, and X. Yu. 2013. Health Code Number (HCN) Development Procedure. PNNL-22828. Richland, WA: Pacific Northwest National Laboratory.
  • Yang L., Z. Zhu, X. Yu, S. Thevuthasan, and J.P. Cowin. 2013. "Performance of a Microfluidic Device for In Situ ToF-SIMS Analysis of Selected Organic Molecules at Aqueous Surfaces." Analytical Methods 5, no. 10:2515-2522. PNNL-SA-85181. doi:10.1039/c3ay26513g
  • Yu X., B. Liu, and L. Yang. 2013. "Imaging Liquids Using Microfluidic Cells." Microfluidics and Nanofluidics 15, no. 6:725-744. PNNL-SA-92749. doi:10.1007/s10404-013-1199-4
  • Yu X., C.S. Glantz, J. Yao, H. He, A.J. Petrocchi, D.K. Craig, and J.T. Ciolek, et al. 2013. "Enhancing the Chemical Mixture Methodology in Emergency Preparedness and Consequence Assessment." Toxicology 313, no. 2-3:174-184. PNNL-SA-86455. doi:10.1016/j.tox.2012.10.011
  • Yu X., K.P. Recknagle, and J.A. Glissmeyer. 2013. Assessment of the Revised 3410 Building Filtered Exhaust Stack Sampling Probe Location. PNNL-23038. Richland, WA: Pacific Northwest National Laboratory.


  • Droppo J.G., and X. Yu. 2012. "Evaluation of Replacing Natural Gas Heat Plant with a Biomass Heat Plant – A Technical Review of Greenhouse Gas Emission Trade-Offs." In Municipal and Industrial Waste Disposal, edited by XY Yu. 231-242. Rijeka:InTech. PNWD-SA-9528.
  • Glantz C.S., X. Yu, R.L. Coggin, L.A. Ponder, A.E. Booth, A.J. Petrocchi, and S.M. Horn, et al. 2012. Summer 2012 Testing and Analysis of the Chemical Mixture Methodology -- Part I. PNNL-21914. Richland, WA: Pacific Northwest National Laboratory.
  • Yu X., J. Yao, H. He, C.S. Glantz, and A.E. Booth. 2012. Enhancing the Benefit of the Chemical Mixture Methodology: A Report on Methodology Testing and Potential Approaches for Improving Performance. PNNL-21248. Richland, WA: Pacific Northwest National Laboratory.
  • Zaveri R.A., W.J. Shaw, D.J. Cziczo, B. Schmid, R. Ferrare, M.L. Alexander, and M. Alexandrov, et al. 2012. "Overview of the 2010 Carbonaceous Aerosols and Radiative Effects Study (CARES)." Atmospheric Chemistry and Physics 12, no. 16:7647-7687. PNNL-SA-84648. doi:10.5194/acp-12-7647-2012


  • Berkowitz C.M., L.K. Berg, X. Yu, M.L. Alexander, A. Laskin, R.A. Zaveri, and B.T. Jobson, et al. 2011. "The Influence of Fog and Airmass History on Aerosol Optical, Physical and Chemical Properties at Pt. Reyes National Seashore." Atmospheric Environment 45, no. 15:2259-2568. PNNL-SA-74938. doi:10.1016/j.atmosenv.2011.02.016
  • Cowin J.P., X. Yang, X. Yu, and M.J. Iedema. 2011. "Theoretical analyses of aerosol aging on a substrate without wall-effects by a cross-flow." Open Atmospheric Science Journal 5. PNNL-SA-76494.
  • Mioduszewski J.R., X. Yu, V.R. Morris, C.M. Berkowitz, and J.E. Flaherty. 2011. "In-Situ Monitoring of Trace Gases in a Non-Urban Environment." Atmospheric Pollution Research 2, no. 1:89-98. PNNL-SA-62683. doi:10.5094/APR.2011.011
  • Yang L., X. Yu, Z. Zhu, M.J. Iedema, and J.P. Cowin. 2011. "Probing Liquid Surfaces under Vacuum Using SEM and TOF-SIMS." Lab on a Chip 11, no. 15:2481-2484. PNNL-SA-76770. doi:10.1039/C0LC00676A
  • Yang L., X. Yu, Z. Zhu, S. Thevuthasan, and J.P. Cowin. 2011. "Making a Hybrid Microfluidic Platform Compatible for In Situ Imaging by Vacuum-Based Techniques." Journal of Vacuum Science and Technology A--Vacuum, Surfaces and Films 29, no. 6:Article No. 061101. PNNL-SA-81346. doi:10.1116/1.3654147
  • Yu X. 2011. "Measurements of Carbonaceous Aerosols using Semi-Continuous Thermal-Optical Method." In Integrated Waste Management, edited by S Kumar. 521-538. Rijeka:INTECH. PNNL-SA-79965.
  • Yu X., L. Yang, Z. Zhu, J.P. Cowin, and M.J. Iedema. 2011. "Probing Aqueous Surfaces by ToF-SIMS." LCGC North America. PNNL-SA-82014.


  • Bamberger J.A., M.S. Greenwood, B.D. Lawler, S.K. Sundaram, E.B. Baer, B.K. Hatchell, and D.F. Hopkins, et al. 2010. "EVALUATING CONCENTRATION PROFILES DURING UNSTEADY MIXING." In Proceedings of the ASME International Mechanical Engineering Congress and Exposition 2009 (IMECE2009), November 13-19, 2009, Lake Buena Vista, Florida, 8, 1-10. New York, New York:American Society of Mechanical Engineers. PNNL-SA-67923.
  • Yu X., A.J. Petrocchi, D.K. Craig, C.S. Glantz, D.M. Trott, J.T. Ciolek, and P. Lu, et al. 2010. "The development and application of the chemical mixture methodology in analysis of potential health impacts from airborne release in emergencies." Journal of Applied Toxicology 30, no. 6:513-524. PNNL-SA-72418. doi:10.1002/jat.1558
  • Yu X., J.P. Cowin, M.J. Iedema, and H.M. Ali. 2010. "Fast Time-Resolved Aerosol Collector: Proof of Concept." Atmospheric Measurement Techniques 3. PNNL-SA-72541. doi:10.5194/amt-3-1377-2010
  • Yu X., J.P. Cowin, N.S. Laulainen, M.J. Iedema, B. Lefer, D. Anderson, and D. Pernia, et al. 2010. "Radical initiated secondary aerosol formation-Particle measurements during the 2009 TEXAQS." In Proceedings of the 12th Conference on Atmospheric Chemistry as part of the 90th American Meteorological Society Annual Meeting, January 16-21, 2010, Atlanta, GA. Boston, Massachusetts:American Meteorological Society. PNWD-SA-8806.


  • Bauer J.J., X. Yu, R. Cary, N.S. Laulainen, and C.M. Berkowitz. 2009. "Characterization of the Sunset Semi-Continuous Carbon Aerosol Analyzer." Journal of the Air and Waste Management Association 59, no. 7:826-833. PNNL-SA-57754.
  • Cross E., T.B. Onasch, M. Canagaratna, J.T. Jayne, J. Kimmel, X. Yu, and M.L. Alexander, et al. 2009. "Single particle characterization using a light scattering module coupled to a time-of-flight aerosol mass spectrometer." Atmospheric Chemistry and Physics 9, no. 20:7769-7793. PNNL-SA-64109.
  • de Gouw J.A., D. Welsh-Bon, C. Warneke, W.C. Kuster, M.L. Alexander, A.K. Baker, and A.K. Baker, et al. 2009. "Emission and Chemistry of Organic Carbon in the Gas and Aerosol Phase at a Sub-Urban Site Near Mexico City in March 2006 During the MILAGRO Study." Atmospheric Chemistry and Physics 9, no. 10:3425-3442. PNNL-SA-62891.
  • Fast J.D., A. Aiken, J.D. Allan, M.L. Alexander, T. Campos, M.R. Canagaratna, and E.G. Chapman, et al. 2009. "Evaluating Simulated Primary Anthropogenic and Biomass Burning Organic Aerosols during MILAGRO: Implications for Assessing Treatments of Secondary Organic Aerosols." Atmospheric Chemistry and Physics 9, no. 16:6191-6215. PNNL-SA-63810.
  • Meyer P.A., J.A. Bamberger, C.W. Enderlin, J.A. Fort, B.E. Wells, S.K. Sundaram, and P.A. Scott, et al. 2009. Pulse Jet Mixing Tests With Noncohesive Solids. PNNL-18098. Richland, WA: Pacific Northwest National Laboratory.
  • Yu X., R. Cary, and N.S. Laulainen. 2009. "Primary and Secondary Organic Carbon Downwind of Mexico City." Atmospheric Chemistry and Physics 9, no. 18:6793-6814. PNNL-SA-62680.


  • Lee T., X. Yu, B. Ayres, S.M. Kreidenweis, W.C. Malm, and J.L. Collett. 2008. "Observations of Fine and Coarse Particle Nitrate at Several Rural Locations in the United States." Atmospheric Environment 42, no. 11:2720-2732. PNNL-SA-55403. doi:10.1016/j.atmosenv.2007.05.016
  • Lee T., X. Yu, S.M. Kreidenweis, W.C. Malm, and J.L. Collett. 2008. "Semi-Continuous Measurement of PM2.5 Ionic Composition at Several Rural Locations in the United States." Atmospheric Environment 42, no. 27:6655-6669. PNNL-SA-56842. doi:10.1016/j.atmosenv.2008.04.023
  • Mioduszewski J.R., and X. Yu. 2008. "Development of an In-Situ Data Logging System for Multiple Trace Gas Analyzers." Journal of Undergraduate Research VIII. PNNL-SA-56583.


  • Doran J.C., J.C. Barnard, W.P. Arnott, R. Cary, R.L. Coulter, J.D. Fast, and E.I. Kassianov, et al. 2007. "The T1-T2 Study: Evolution of Aerosol Properties Downwind of Mexico City." Atmospheric Chemistry and Physics 7, no. 6:1585-1598. PNNL-SA-53382.
  • Song C., R.A. Zaveri, M.L. Alexander, J.A. Thornton, S. Madronich, J.V. Ortega, and A. Zelenyuk, et al. 2007. "Effect of Hydrophobic Primary Organic Aerosols on Secondary Organic Aerosol Formation from Ozonolysis of a-Pinene." Geophysical Research Letters 34, no. 20:Paper # L20803. PNNL-SA-55416. doi:10.1029/2007GL030720


  • Liu Y., D.A. MacDonald, X. Yu, S.V. Hering, J.L. Collett, and C.S. Henry. 2006. "Analysis of Anions in Ambient Aerosols by Microchip Capillary Electrophoresis." The Analyst 131, no. 11:1226-1231. PNNL-SA-51540. doi:10.1039/b608945c
  • Yu X., T. Lee, B. Ayres, S.M. Kreidenweis, W.C. Malm, and J.L. Collett. 2006. "Loss of Fine Particle Ammonium from Denuded Nylon Filters." Atmospheric Environment 40, no. 25:4797-4807. PNNL-SA-51276. doi:10.1016/j.atmosenv.2006.03.061

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