Neil M Donahue

Summary

Affiliation: Carnegie Mellon University
Country: USA

Publications

  1. ncbi request reprint Secondary organic aerosol production from terpene ozonolysis. 1. Effect of UV radiation
    Albert A Presto
    Department of Chemistry and Department of Chemical Engineering, Doherty Hall, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
    Environ Sci Technol 39:7036-45. 2005
  2. ncbi request reprint How do organic vapors contribute to new-particle formation?
    Neil M Donahue
    Carnegie Mellon University Center for Atmospheric Particle Studies, 5000 Forbes Ave, Pittsburgh, PA, USA
    Faraday Discuss 165:91-104. 2013
  3. doi request reprint Volatility and aging of atmospheric organic aerosol
    Neil M Donahue
    Carnegie Mellon University Center for Atmospheric Particle Studies, Pittsburgh, PA, USA
    Top Curr Chem 339:97-143. 2014
  4. pmc Aging of biogenic secondary organic aerosol via gas-phase OH radical reactions
    Neil M Donahue
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, PA 15217, USA
    Proc Natl Acad Sci U S A 109:13503-8. 2012
  5. ncbi request reprint Critical factors determining the variation in SOA yields from terpene ozonolysis: a combined experimental and computational study
    Neil M Donahue
    Department of Chemistry and Chemical Engineering, Carnegie Mellon University, Pittsburgh PA 15213, USA
    Faraday Discuss 130:295-309; discussion 363-86, 519-24. 2005
  6. ncbi request reprint Adventures in ozoneland: down the rabbit-hole
    Neil M Donahue
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, USA
    Phys Chem Chem Phys 13:10848-57. 2011
  7. doi request reprint Photo-oxidation of low-volatility organics found in motor vehicle emissions: production and chemical evolution of organic aerosol mass
    Marissa A Miracolo
    Departments of Mechanical Engineering and Chemical Engineering and Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
    Environ Sci Technol 44:1638-43. 2010
  8. ncbi request reprint Intermediate-volatility organic compounds: a potential source of ambient oxidized organic aerosol
    Albert A Presto
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, Pennsylvania, USA
    Environ Sci Technol 43:4744-9. 2009
  9. ncbi request reprint Secondary organic aerosol production from terpene ozonolysis. 2. Effect of NOx concentration
    Albert A Presto
    Department of Chemistry and Department of Chemical Engineering, Doherty Hall, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
    Environ Sci Technol 39:7046-54. 2005
  10. doi request reprint Effective rate constants and uptake coefficients for the reactions of organic molecular markers (n-alkanes, hopanes, and steranes) in motor oil and diesel primary organic aerosols with hydroxyl radicals
    Andrew T Lambe
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, Pennsylvania, USA
    Environ Sci Technol 43:8794-800. 2009

Collaborators

Detail Information

Publications41

  1. ncbi request reprint Secondary organic aerosol production from terpene ozonolysis. 1. Effect of UV radiation
    Albert A Presto
    Department of Chemistry and Department of Chemical Engineering, Doherty Hall, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
    Environ Sci Technol 39:7036-45. 2005
    ..These results implythat previous "dark bag" experiments may overestimate SOA generation from monoterpenes and also that SOA generation in the atmosphere may depend significantly on actinic flux...
  2. ncbi request reprint How do organic vapors contribute to new-particle formation?
    Neil M Donahue
    Carnegie Mellon University Center for Atmospheric Particle Studies, 5000 Forbes Ave, Pittsburgh, PA, USA
    Faraday Discuss 165:91-104. 2013
    ..The steady-state saturation ratios and absolute concentrations of extremely low volatility products are sufficient to drive new-particle formation with sulphuric acid at atmospherically relevant rates...
  3. doi request reprint Volatility and aging of atmospheric organic aerosol
    Neil M Donahue
    Carnegie Mellon University Center for Atmospheric Particle Studies, Pittsburgh, PA, USA
    Top Curr Chem 339:97-143. 2014
    ..We present general scaling arguments to constrain the relative importance of these processes in the atmosphere, compared to each other and compared to the characteristic residence time of particles in the atmosphere. ..
  4. pmc Aging of biogenic secondary organic aerosol via gas-phase OH radical reactions
    Neil M Donahue
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, PA 15217, USA
    Proc Natl Acad Sci U S A 109:13503-8. 2012
    ..The mass increases are consistent with an existing gap between global SOA sources and those predicted in models, and can be described by a mechanism suitable for implementation in those models...
  5. ncbi request reprint Critical factors determining the variation in SOA yields from terpene ozonolysis: a combined experimental and computational study
    Neil M Donahue
    Department of Chemistry and Chemical Engineering, Carnegie Mellon University, Pittsburgh PA 15213, USA
    Faraday Discuss 130:295-309; discussion 363-86, 519-24. 2005
    ..We suggest that SOA yields are likely to increase substantially through several generations of oxidative processing of the semi-volatile products...
  6. ncbi request reprint Adventures in ozoneland: down the rabbit-hole
    Neil M Donahue
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, USA
    Phys Chem Chem Phys 13:10848-57. 2011
    ....
  7. doi request reprint Photo-oxidation of low-volatility organics found in motor vehicle emissions: production and chemical evolution of organic aerosol mass
    Marissa A Miracolo
    Departments of Mechanical Engineering and Chemical Engineering and Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
    Environ Sci Technol 44:1638-43. 2010
    ....
  8. ncbi request reprint Intermediate-volatility organic compounds: a potential source of ambient oxidized organic aerosol
    Albert A Presto
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, Pennsylvania, USA
    Environ Sci Technol 43:4744-9. 2009
    ....
  9. ncbi request reprint Secondary organic aerosol production from terpene ozonolysis. 2. Effect of NOx concentration
    Albert A Presto
    Department of Chemistry and Department of Chemical Engineering, Doherty Hall, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
    Environ Sci Technol 39:7046-54. 2005
    ..We also present two-product model parameters to describe aerosol production from the alpha-pinene/0/NOx system under both high- and low-NOx conditions...
  10. doi request reprint Effective rate constants and uptake coefficients for the reactions of organic molecular markers (n-alkanes, hopanes, and steranes) in motor oil and diesel primary organic aerosols with hydroxyl radicals
    Andrew T Lambe
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, Pennsylvania, USA
    Environ Sci Technol 43:8794-800. 2009
    ..Based on our results, neglecting oxidation of molecular markers used for source apportionment could introduce significant error, since many common markers such as norhopane appear to be semivolatile under atmospheric conditions...
  11. ncbi request reprint Rethinking organic aerosols: semivolatile emissions and photochemical aging
    Allen L Robinson
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, PA 15213, USA
    Science 315:1259-62. 2007
    ..Controlling organic particulate-matter concentrations will require substantial changes in the approaches that are currently used to measure and regulate emissions...
  12. doi request reprint Reactivity of oleic acid in organic particles: changes in oxidant uptake and reaction stoichiometry with particle oxidation
    Amy M Sage
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, PA 15213, USA
    Phys Chem Chem Phys 11:7951-62. 2009
    ..It implies that there is additional, previously unrecognized secondary chemistry that likely involves the carbon backbone. Our understanding of reactivity, even in this simple system, remains incomplete...
  13. doi request reprint Secondary organic aerosol formation from high-NO(x) photo-oxidation of low volatility precursors: n-alkanes
    Albert A Presto
    Center for Atmospheric Particle Studies, Carnegie Mellon University, USA
    Environ Sci Technol 44:2029-34. 2010
    ..At higher C(OA), the mass spectrum was dominated by m/z 30, indicative of organic nitrates. The data support the conclusion that lower volatility organic vapors are important SOA precursors...
  14. ncbi request reprint Organic aerosol formation from photochemical oxidation of diesel exhaust in a smog chamber
    Emily A Weitkamp
    Center for Atmospheric Particle Studies, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, USA
    Environ Sci Technol 41:6969-75. 2007
    ..The data provide strong evidence that the oxidation of a wide array of precursors that are currently not accounted for in existing models contributes to ambient SOA formation...
  15. ncbi request reprint Laboratory measurements of the heterogeneous oxidation of condensed-phase organic molecular makers for meat cooking emissions
    Emily A Weitkamp
    Center for Atmospheric Particle Studies, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, USA
    Environ Sci Technol 42:5177-82. 2008
    ..The results highlight that assumptions regarding the photochemical stability of molecular markers can lead to substantial biases in predictions of receptor models...
  16. doi request reprint Volatility of organic molecular markers used for source apportionment analysis: measurements and implications for atmospheric lifetime
    Andrew A May
    Center for Atmospheric Particle Studies, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, USA
    Environ Sci Technol 46:12435-44. 2012
    ..Therefore, both gas-particle partitioning and chemical reactions need to be accounted for when semivolatile molecular markers are used for source apportionment studies...
  17. doi request reprint Simulations of smog-chamber experiments using the two-dimensional volatility basis set: linear oxygenated precursors
    Heber J Chacon-Madrid
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, PA 15213, USA
    Environ Sci Technol 46:11179-86. 2012
    ....
  18. ncbi request reprint Laboratory measurements of the heterogeneous oxidation of condensed-phase organic molecular makers for motor vehicle exhaust
    Emily A Weitkamp
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
    Environ Sci Technol 42:7950-6. 2008
    ..The results demonstrate that even modest levels of oxidation can alter policy-relevant conclusions about the total and relative contribution of gasoline and diesel vehicle emissions to ambient fine particle concentrations...
  19. doi request reprint Secondary organic aerosol formation from multiphase oxidation of limonene by ozone: mechanistic constraints via two-dimensional heteronuclear NMR spectroscopy
    Christina S Maksymiuk
    Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, USA
    Phys Chem Chem Phys 11:7810-8. 2009
    ....
  20. doi request reprint Secondary organic aerosol formation from intermediate-volatility organic compounds: cyclic, linear, and branched alkanes
    Daniel S Tkacik
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, PA, USA
    Environ Sci Technol 46:8773-81. 2012
    ..Therefore, SOA from IVOCs may be an important contributor to urban OA and should be included in SOA models; the yield data presented in this study are suitable for such use...
  21. doi request reprint Evaluating the mixing of organic aerosol components using high-resolution aerosol mass spectrometry
    Lea Hildebrandt
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, PA, USA
    Environ Sci Technol 45:6329-35. 2011
    ..At equilibrium, our results are consistent with pseudo-ideal mixing of anthropogenic and biogenic SOA components from these chemically dissimilar precursors...
  22. doi request reprint Pressure dependence of stabilized Criegee intermediate formation from a sequence of alkenes
    Greg T Drozd
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States
    J Phys Chem A 115:4381-7. 2011
    ..Stabilization for endocyclic alkenes, at atmospheric pressure, begins to occur at a carbon number of 10, with only modest yields of SCI...
  23. ncbi request reprint Effect of NOx on secondary organic aerosol concentrations
    Timothy E Lane
    Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
    Environ Sci Technol 42:6022-7. 2008
    ..A decrease of the average biogenic SOA by roughly 0.5 microg m(-3) is predicted for the southeast US for a 50% reduction in NOx emissions...
  24. ncbi request reprint Ozonolysis of beta-pinene: temperature dependence of secondary organic aerosol mass fraction
    Ravikant Pathak
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, PA, USA
    Environ Sci Technol 42:5081-6. 2008
    ..The parametrization predicts much higher SOA production for beta-pinene ozonolysis for typical atmospheric conditions than the values that have been suggested by previous studies...
  25. doi request reprint A semiempirical correlation between enthalpy of vaporization and saturation concentration for organic aerosol
    Scott A Epstein
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
    Environ Sci Technol 44:743-8. 2010
    ..Knowledge of the relationship between C* and deltaH(VAP) constrains a free parameter in thermodenuder data analysis. A thermodenuder model using our deltaH(VAP) values agrees well with thermal behavior observed in laboratory experiments...
  26. ncbi request reprint Controlled OH radical production via ozone-alkene reactions for use in aerosol aging studies
    Andrew T Lambe
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
    Environ Sci Technol 41:2357-63. 2007
    ..04 +/-0.21...
  27. doi request reprint Ozonolysis of cyclic alkenes as surrogates for biogenic terpenes: primary ozonide formation and decomposition
    Scott A Epstein
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
    J Phys Chem A 114:7509-15. 2010
    ..These kinetic computations were used to calculate a hydroxyl radical yield for 1-methyl-cyclohexene ozonolysis of 0.85 at 298 K...
  28. ncbi request reprint Secondary organic aerosol formation from limonene ozonolysis: homogeneous and heterogeneous influences as a function of NO(x)
    Jieyuan Zhang
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
    J Phys Chem A 110:11053-63. 2006
    ..Although this chemistry is slower, it also yields products with low volatility. UV light suppresses production of the lowest volatility products, as we have shown in earlier studies of the alpha-pinene + ozone reaction...
  29. ncbi request reprint Source apportionment of molecular markers and organic aerosol. 2. Biomass smoke
    Allen L Robinson
    Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
    Environ Sci Technol 40:7811-9. 2006
    ..The marker-to-OC ratios of source profiles are critical parameters to consider when evaluating CMB solutions...
  30. doi request reprint Photochemical aging of α-pinene secondary organic aerosol: effects of OH radical sources and photolysis
    Kaytlin M Henry
    Center for Atmospheric Particle Studies, Department of Chemical Engineering, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, Pennsylvania, 15213 United States
    J Phys Chem A 116:5932-40. 2012
    ..The photolysis rates are rapid, a few percent of the NO(2) photolysis frequency, and can thus be highly competitive with other aging mechanisms in the atmosphere...
  31. ncbi request reprint Investigation of alpha-pinene + ozone secondary organic aerosol formation at low total aerosol mass
    Albert A Presto
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
    Environ Sci Technol 40:3536-43. 2006
    ..However, extrapolations of current models overestimate SOA production under illuminated, higher-NOx conditions typical of polluted regional air masses...
  32. ncbi request reprint Updating the conceptual model for fine particle mass emissions from combustion systems
    Allen L Robinson
    Department of Mechanical Engineering, Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, PA 15213, USA
    J Air Waste Manag Assoc 60:1204-22. 2010
    ..This discussion highlights important linkages between primary and secondary PM, which could lead to simplified certification test procedures while capturing the emission components that contribute most to atmospheric PM mass...
  33. doi request reprint Functionalization vs. fragmentation: n-aldehyde oxidation mechanisms and secondary organic aerosol formation
    Heber J Chacon-Madrid
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
    Phys Chem Chem Phys 12:13975-82. 2010
    ..We also measured SOA mass yields, which we compare with analogous n-alkanes to understand the effect of fragmentation on organic-aerosol formation...
  34. doi request reprint Secondary organic aerosol formation from photo-oxidation of unburned fuel: experimental results and implications for aerosol formation from combustion emissions
    Shantanu H Jathar
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
    Environ Sci Technol 47:12886-93. 2013
    ....
  35. ncbi request reprint Source apportionment of molecular markers and organic aerosol--1. Polycyclic aromatic hydrocarbons and methodology for data visualization
    Allen L Robinson
    Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
    Environ Sci Technol 40:7803-10. 2006
    ..Decay of PAHs will bias estimates of the gasoline-diesel split toward diesel emissions...
  36. doi request reprint 2,3-Dimethyl-2-butene (TME) ozonolysis: pressure dependence of stabilized Criegee intermediates and evidence of stabilized vinyl hydroperoxides
    Greg T Drozd
    Carnegie Mellon, University, Pittsburgh, Pennsylvania, USA
    J Phys Chem A 115:161-6. 2011
    ....
  37. doi request reprint Time scales for gas-particle partitioning equilibration of secondary organic aerosol formed from alpha-pinene ozonolysis
    Rawad Saleh
    Center for Atmospheric Particle Studies, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
    Environ Sci Technol 47:5588-94. 2013
    ..1. For typical atmospheric conditions, this translates into equilibration time scales on the order of minutes to tens of minutes, supporting the use of equilibrium partitioning in chemical transport models...
  38. doi request reprint Secondary organic aerosol coating of synthetic metal-oxide nanoparticles
    Joohyung Lee
    Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, PA, USA
    Environ Sci Technol 45:4689-95. 2011
    ..This suggests that SOA condensational growth may be modeled based on the size distribution of the condensational sink in the atmosphere...
  39. doi request reprint Organic aerosol mixing observed by single-particle mass spectrometry
    Ellis Shipley Robinson
    Center for Atmospheric Particle Studies, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
    J Phys Chem A 117:13935-45. 2013
    ..The observations from all of these mixing experiments are generally invisible to bulk aerosol composition measurements but are made possible with single-particle composition data. ..
  40. ncbi request reprint The HOOH UV spectrum: Importance of the transition dipole moment and torsional motion from semiclassical calculations on an ab initio potential energy surface
    Greg T Drozd
    Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USAQuantum Theory Project, 2234 New Physics Building 92, P O Box 118435, Gainesville, Florida 32611 8435, USA
    J Chem Phys 132:084304. 2010
    ..Based on these initial findings for HOOH, photodissociation of large ROOH cannot be eliminated as an important factor for ozone and particulate matter production seen in both ambient and laboratory studies...
  41. ncbi request reprint Aging of organic aerosol: bridging the gap between laboratory and field studies
    Yinon Rudich
    Department of Environmental Sciences, Weizmann Institute, Rehovot 76100, Israel
    Annu Rev Phys Chem 58:321-52. 2007
    ....