Publications

  1. Olonimoyo, E. A., Amradi, N. K., Lansing, S., Asa-Awuku, A. A., & Duncan, C. M. (2024). An Improved Underivatized, Cost-Effective, Validated Method for Six Short-Chain Fatty Organic Acids by High-Performance Liquid Chromatography. Journal of Chromatography Open, 100193. https://doi.org/10.1016/j.jcoa.2024.100193
  2. Rastogi, D., Gohil, K., Malek, K. A., Peng, C., Tang, M., & Asa-Awuku, A. (2024). Toward an Understanding of Uric Acid Particle Dissolution: Surface and Bulk-Driven Water Activity. The Journal of Physical Chemistry A, 128(30), 6254-6263. https://doi.org/10.1021/acs.jpca.4c02388 
  3. Malek, K. A., Ferdousi-Rokib, N., Rastogi, D., & Asa-Awuku, A. A. (2024). The Role of Organic Vapor in the Water Uptake of Organic Aerosols. ACS Earth and Space Chemistry. 8(11), 2123-2132. https://pubs.acs.org/doi/10.1021/acsearthspacechem.4c00017
  4. Zhang, J., Zhu, T., Catena, A., Li, Y., Schwab, M., Liu, P., Asa-Awuku, A. A., & Schwab, J. (2024). Quantified organic aerosol subsaturated hygroscopicity by a simple optical scatter monitor system through field measurements. Atmospheric Chemistry and Physics, 24(23), 13445-13456. https://doi.org/10.5194/acp-24-13445-2024.
  5. Wang, Y., Rastogi, D., Malek, K., Sun, J., Ahn, M., Asa-Awuku, A., & Woehl, T. (2024). Imaging Dissolution Dynamics of Individual NaCl Nanoparticles during Deliquescence with In Situ Transmission Electron Microscopy. Environmental Science & Technology, 58(35), 15551-15561. https://doi.org/10.1021/acs.est.4c02356
  6. Bililign, S., Brown, S. S., Westervelt, D. M., Kumar, R., Tang, W., Flocke, F., Vizuete, W.  Ture, K. Pope, F. Demoz, B. Asa-Awuku, A., Levelt, P. F.,  Kalisa, E. Rahjea, G. Ndyabakira, A. & Gatari, M. J. (2024). East African Megacity Air Quality: Rationale and Framework for a Measurement and Modeling Program. Bulletin of the American Meteorological Society, 1(aop). https://doi.org/10.1175/BAMS-D-23-0098.1
  7. Mao, C. N., Gohil, K., Rastogi, D., & Asa-Awuku, A. (2024). The hygroscopicity of nano-plastic particles and implications for cloud formation and climate. Aerosol Science and Technology, 1-9. https://doi.org/10.1080/02786826.2024.2361041 
  8. Malek, K., Gohil, K., Olonimoyo, E. A., Ferdousi-Rokib, N., Huang, Q., Pitta, K. R. Raymond, T. M., Dutcher, D. D Dutcher, Freedman,  M. A.  and A A. Asa-Awuku . “Liquid–Liquid Phase Separation Can Drive Aerosol Droplet Growth in Supersaturated Regimes.” ACS Environmental Au 3.6 (2023): 348-360. https://doi.org/10.1021/acsenvironau.3c00015
  9. Razafindrambinina, P. N., Malek, K. A., De, A., Gohil, K., Riemer, N., & Asa-Awuku, A. A. (2023). Using particle-resolved aerosol model simulations to guide the interpretations of cloud condensation nuclei experimental data. Aerosol Science and Technology, 57(7), 608-618. https://doi.org/10.1080/02786826.2023.2202741
  10. Mouton, M., Malek, K. A., James, M. S. H., Pokhrel, R. P., Fiddler, M. N., Asa-Awuku, A. A., & Bililign, S. (2023). The hygroscopic properties of biomass burning aerosol from Eucalyptus and cow dung under different combustion conditions. Aerosol Science and Technology, 57(7), 665-677. https://doi.org/10.1080/02786826.2023.2198587 
  11. Mao, C. N., Asa-Awuku, A., Zangmeister, C. D., Weaver, J. L., & Radney, J. G. (2023). Impactor collection efficiencies can modify the uncertainty of multiply charged particles in optical extinction measurements. Aerosol Science and Technology, 57(6), 562-576. https://doi.org/10.1080/02786826.2023.2194350
  12. Gohil, K., Barrett, R., Rastogi, D., Mao, C. N., Yao, Q., & Asa-Awuku, A. (2023). Solubility Considerations for Cloud Condensation Nuclei (CCN) Activity Analysis of Pure and Mixed Black Carbon Species. The Journal of Physical Chemistry A, 127(17), 3873-3882. https://doi.org/10.1021/acs.jpca.2c08585
  13. Wang, Y., Rastogi, D., Malek, K., Sun, J., Asa-Awuku, A., & Woehl, T. J. Electric Field-Induced Water Condensation Visualized by Vapor-Phase Transmission Electron Microscopy. The Journal of Physical Chemistry A. (2023), 127, 11, 2545-2553. https://doi.org/10.1021/acs.jpca.2c08187
  14. Malek, K. A., Rastogi, D., Al-Abadleh, H. A., & Asa-Awuku, A. . Hygroscopicity of Nitrogen Containing Organic Carbon Compounds: o-aminophenol and p-aminophenol. Environmental Science: Processes & Impacts.(2023), 25, 229-40 DOI: 10.1039/D2EM00163B.
  15. Al-Abadleh, Hind A., Fatemeh Motaghedi, Wisam Mohammed, Md Sohel Rana, Kotiba A. Malek, Dewansh Rastogi, Akua A. Asa-Awuku, and Marcelo I. Guzman. “Reactivity of aminophenols in forming nitrogen-containing brown carbon from iron-catalyzed reactions.” Communications Chemistry 5, no. 1 (2022): 1-12. https://doi.org/10.1038/s42004-022-00732-1
  16. Gohil, Kanishk, Chun-Ning Mao, Dewansh Rastogi, Chao Peng, Mingjin Tang, and Akua Asa-Awuku. “Hybrid Water Adsorption and Solubility Partitioning for Aerosol Hygroscopicity and Droplet Growth.” Atmospheric Chemistry and Physics. (2022): 22, 13219–13228, https://doi.org/10.5194/acp-22-12769-2022
  17. Mao, Chun-Ning, Kanishk Gohil, and Akua Asa-Awuku. “A Single Parameter Hygroscopicity Model for Functionalized and Insoluble Aerosol Surfaces.” Atmospheric Chemistry and Physics., 9 (2022): 13219-13228. https://doi.org/10.5194/acp-22-13219-2022
  18. Razafindrambinina, Patricia N., Kotiba A. Malek, Kristin DiMonte, Joseph Nelson Dawson, Timothy M. Raymond, Dabrina D Dutcher, Miriam Arak Freedman, and Akua A. Asa-Awuku. “Effects of Mixing State on Water-Uptake Properties of Ammonium Sulfate–Organic Mixtures.” Aerosol Science and Technology  (2022): 56 (11), 1009-1021. https://doi.org/10.1080/02786826.2022.2114313
  19. Duncan, C., Terrell Shockley, E. & Asa-Awuku, A. (2022). Accounts and recommendations for recruitment of under-represented groups in the geoscience STEM discipline. Journal of Geoscience Education. https://doi.org/10.1080/10899995.2022.2106813
  20. Rastogi, Dewansh, and Akua Asa-Awuku. “Size, Shape, and Phase of Nanoscale Uric Acid Particles.” ACS omega (2022). https://doi.org/10.1021/acsomega.2c01213 
  21. Peng, Chao, Kotiba A. Malek, Dewansh Rastogi, Yuqing Zhang,  Weigang Wang, Ru-Jin Huang,  Xiang Ding, Akua Asa-Awuku, Xinming Wang, and Mingjing Tang. Hygroscopicity and cloud condensation nucleation activities of hydroxyalkylsulfonates, Science of The Total Environment,  https://doi.org/10.1016/j.scitotenv.2022.154767, 2022 
  22. Gohil, K. and Asa-Awuku, A.: Cloud Condensation Nuclei (CCN) Activity Analysis of Low-hygroscopicity Aerosols Using the Aerodynamic Aerosol Classifier (AAC), Atmos. Meas. Tech., 15, 1007–1019, https://doi.org/10.5194/amt-15-1007-2022, 2022.
  23. Razafindrambinina, Patricia N., Akua A. Asa-Awuku, James G. Radney, and Christopher D. Zangmeister.   Absorption Spectra of Martian Dust Simulants.  ACS Earth and Space Chemistry (2022). 6 (3) 672-682, https://doi.org/10.1021/acsearthspacechem.1c00335
  24. Razafindrambinina, Patricia N., Kotiba A. Malek, Joseph Nelson Dawson, Kristin DiMonte, Timothy M. Raymond, Dabrina D. Dutcher, Miriam A. Freedman, and Akua Asa-Awuku. “Hygroscopicity of Internally Mixed Ammonium Sulfate and Secondary Organic Aerosol Particles Formed at Low and High Relative Humidity.” Environmental Science: Atmospheres (2022) 2 (2). 202-214. DOI: 10.1039/D1EA00069A
  25. Malek, Kotiba A., Kanishk Gohil, Hind A. Al-Abadleh, and Akua A. Asa-Awuku. “Hygroscopicity of polycatechol and polyguaiacol secondary organic aerosol in sub-and supersaturated water vapor environments.” Environmental Science: Atmospheres. 2.1. (2022) 24-33, doi.10.1039/d1ea00063b.
  26. Mao, Chun-Ning, Kotiba A. Malek, and Akua Asa-Awuku. “Hygroscopicity and the water-polymer interaction parameter of nano-sized biodegradable hydrophilic substances”. Aerosol Science & Technology (2021), 55:10, 1115-1124, https://doi.org/10.1080/02786826.2021.1931012
  27. Peng, Chao, Patricia N. Razafindrambinina, Kotiba A. Malek, Lanxiadi Chen, Weigang Wang, Ru-Jin Huang, Yuqing Zhang,  X. Ding,  M Ge, X Wang, Akua Asa-Awuku, and Mingjing Tang. “Interactions of organosulfates with water vapor under sub-and supersaturated conditions.” Atmospheric Chemistry and Physics (2021), 21, 7135–7148,  https://doi.org/10.5194/acp-21-7135-2021
  28. Dawson, Joseph Nelson, Kotiba A. Malek, Patricia N. Razafindrambinina, Timothy M. Raymond, Dabrina D. Dutcher, Akua A. Asa-Awuku, and Miriam Arak Freedman. “Direct Comparison of the Submicron Aerosol Hygroscopicity of Water-Soluble Sugars.” ACS Earth and Space Chemistry (2020). https://pubs.acs.org/doi/full/10.1021/acsearthspacechem.0c00159
  29. Roth, Patrick, Jiacheng Yang, Christos Stamatis, Kelly Barsanti,  David Cocker,Thomas Durbin, Akua Asa-Awuku, Georgios Karavalakis; Evaluating the relationships between aromatic and ethanol levels in gasoline on secondary aerosol formation from a gasoline direct injection vehicle, Science of the Total Environment,  (2020) https://doi.org/10.1016/j.scitotenv.2020.140333 
  30. Yao, Qi, Akua Asa-Awuku, Christopher D. Zangmeister & James G. Radney Comparison of three essential sub-micrometer aerosol measurements: Mass, size and shape. Aerosol Science and Technology,  (2020) https://doi.org/10.1080/02786826.2020.1763248
  31. Roth, Patrick, Jiacheng Yang, Weihan Peng, David Cocker,Thomas Durbin, Akua Asa-Awuku, Georgios Karavalakis; Intermediate and High Ethanol Blends Reduce Secondary Organic Aerosol Formation from Gasoline Direct Injection Vehicles, Atmospheric Environment, 220,  (2020) 117064. https://doi.org/10.1016/j.atmosenv.2019.117064
  32. Vu, D., Gao, S., Berte, T., Kacarab, M., Yao, Q., Vafai, K., and Asa-Awuku, A.: External and Internal CCN Mixtures: Controlled Laboratory Studies of Varying Mixing States, Atmospheric Measurement Techniques 12.8 (2019): 4277-4289., https://doi.org/10.5194/amt-2018-429,
  33. Barati, Farima, Qi Yao, and Akua Asa-Awuku. “Insight into the role of water-soluble organic solvents for the Cloud Condensation Nuclei activation of cholesterol.” ACS Earth and Space Chemistry. 39.(2019). 1697-1705. https://doi.org/10.1021/acsearthspacechem.9b00161
  34. Jiacheng Yang; Patrick Roth, Thomas D Durbin, Martin M Shafer, Jocelyn Hemming, Dagmara Antkiewicz, Akua Asa-Awuku, Georgios Karavalakis. “Emissions from a Flex Fuel GDI Vehicle Operating on Ethanol Fuels Show Marked Contrasts in Chemical, Physical and Toxicological Characteristics as a Function of Ethanol Content”. Science of the Total Environment, https://doi.org/10.1016/j.scitotenv.2019.05.279
  35. Vu, Diep, Patrick Roth, Tyler Berte, Jiacheng Yang,David R. Cocker, Thomas D. Durbin, Georgios Karavalakis, and Akua Asa-Awuku. “Using a new Mobile Atmospheric Chamber (MACh) to investigate the formation of secondary aerosols from mobile sources: The case of gasoline direct injection vehicles.”Journal of Aerosol Science (2019). 133, 1-11. https://doi.org/10.1016/j.jaerosci.2019.03.009
  36. Roth, Patrick, Jiacheng Yang, Emmanuel Fofie, David R. Cocker, Thomas D. Durbin, Rasto Brezny, Michael Geller, Akua Asa-Awuku, and Georgios Karavalakis. “Catalyzed Gasoline Particulate Filters Reduce Secondary Organic Aerosol Production from Gasoline Direct Injection Vehicles.” Environmental science & technology (2019). https://pubs.acs.org/doi/abs/10.1021/acs.est.8b06418
  37. Yang, J. , Roth, P., Ruehl, CR. Shafer, MM., Antkiewicz, DS., Durbin, T.D., Cocker, D.R., Asa-Awuku, A. and G. Karavalakis. “Physical, chemical, and toxicological characteristics of particulate emissions from current technology gasoline direct injection vehicles.” Science of the Total Environment. 650 (2019): 1182-1194. https://doi.org/10.1016/j.scitotenv.2018.09.110
  38. Yang, Jiacheng, Patrick Roth, Thomas D. Durbin, Kent C. Johnson, Akua Asa-Awuku, David R. Cocker III, and Georgios Karavalakis. “Investigation of the Effect of Mid-And High-Level Ethanol Blends on the Particulate and the Mobile Source Air Toxic Emissions from a Gasoline Direct Injection Flex Fuel Vehicle.” Energy & Fuels 33, no. 1 (2019): 429-440. doi:10.1021/acs.energyfuels.8b02206  https://pubs.acs.org/doi/abs/10.1021/acs.energyfuels.8b02206
  39. Lin, Y., Bahreini, R.,  Zimmerman, S.,  Fofie, E. A., Asa-Awuku,  A.,  Park, K.,  Lee, S-B.,  Bae, G-N.  and H. S. Jung. “Investigation of ambient aerosol effective density with and without using a catalytic stripper.” Atmospheric Environment (2018). 187, 84-92  https://doi.org/10.1016/j.atmosenv.2018.05.063
  40. Jiang, J., Yang, J., Gagné, S., Chan, T. W., Thomson, K., Fofie, E., Cary, R. A.,Dan Rutherford, D., Bryan Comer,B., Jacob Swanson, J., Lin, Y. Van Rooy, P, Asa-Awuku, A. ,Jung, H., Barsanti, K., Karavalakis. G, David Cocker, D., Durbin, T. D., Miller, J. W., K. C. Johnson. Sources of variance in BC mass measurements from a small marine engine: Influence of the instruments, fuels and loads. Atmospheric Environment. 182 (2018): 128-137.  https://doi.org/10.1016/j.atmosenv.2018.03.008
  41. Yang, J., Roth, P., Durbin, T.D., Johnson, K.C., Cocker, D.R., Asa-Awuku, A., Brezny, R., Geller, M. and Karavalakis, G., 2018. Gasoline Particulate Filters as an Effective Tool to Reduce Particulate and PAH Emissions from GDI Vehicles: A Case Study with Two GDI Vehicles. Environmental science & technology. (2018). 52 (5), pp 3275–3284. 10.1021/acs.est.7b05641 https://pubs.acs.org/doi/full/10.1021/acs.est.7b05641
  42. Fofie, E. A., Donahue, N. M., & Asa-Awuku, A. (2018). Cloud condensation nuclei activity and droplet formation of primary and secondary organic aerosol mixtures. Aerosol Science and Technology, 52(2), 242-251. https://doi.org/10.1080/02786826.2017.1392480
  43. Vizenor, A., & Asa-Awuku, A. Gas-phase kinetics modifies the CCN activity of biogenic SOA. Physical Chemistry Chemical Physics. no. 9 (2018), 6591-6597. (Online)
  44. Fofie, E., V. Castelluccio, and A. Asa-Awuku. “Exploring CCN Droplet Suppression with a Higher Sensitivity Optical Particle Counter.” Aerosol Science and Technology (2018): 52, no.1, 78-86. http://dx.doi.org/10.1080/02786826.2017.1379592.
  45. Short, Daniel, Diep Vu, Vincent Chen, Carlos Espinoza, Tyler Berte, Georgios Karavalakis, Thomas D Durbin, and Akua Asa-Awuku. “Understanding Particles Emitted from Spray and Wall-Guided Gasoline Direct Injection and Flex Fuel Vehicles Operating on Ethanol and Iso-Butanol Gasoline Blends.” Aerosol Science and Technology 51, no. 3 (2017): 330-41. http://dx.doi.org/10.1080/02786826.2016.1265080
  46. Vu, Diep, Daniel Short, Georgios Karavalakis, Thomas D Durbin, and Akua Asa-Awuku. “Will Aerosol Hygroscopicity Change with Biodiesel, Renewable Diesel Fuels and Emission Control Technologies?” Environmental science & technology 51, no. 3 (2017): 1580-86. http://dx.doi.org/10.1021/acs.est.6b03908.
  47. Piqueras, P, F Li, V Castelluccio, M Matsumoto, and A Asa-Awuku. “Real-Time Ultrafine Aerosol Measurements from Wastewater Treatment Facilities.” Environmental science & technology 50, no. 20 (2016): 11137-44. http://dx.doi.org/10.1021/acs.est.6b02684.
  48. Clark, Christopher H., Mary Kacarab, Shunsuke Nakao, Akua Asa-Awuku, Kei Sato, and David R. Cocker. “Temperature Effects on Secondary Organic Aerosol (Soa) from the Dark Ozonolysis and Photo-Oxidation of Isoprene.” Environmental science & technology 50, no. 11 (2016/06/07 2016): 5564-71. http://dx.doi.org/10.1021/acs.est.5b05524.
  49. Giordano, Michael R, Joey Chong, David R Weise, and Akua A Asa-Awuku. “Does Chronic Nitrogen Deposition During Biomass Growth Affect Atmospheric Emissions from Biomass Burning?” Environmental Research Letters 11, no. 3 (2016): 034007.  http://dx.doi.org/10.1088/1748-9326/11/3/034007
  50. Vu, D, D Short, G Karavalakis, TD Durbin, and A Asa-Awuku. “Integrating Cloud Condensation Nuclei Predictions with Fast Time Resolved Aerosol Instrumentation to Determine the Hygroscopic Properties of Emissions over Transient Drive Cycles.” Aerosol Science and Technology 49, no. 11 (2015): 1149-59. http://dx.doi.org/10.1080/02786826.2015.1105358.
  51. Asa-Awuku, Akua, Armin Sorooshian, Richard C Flagan, John H Seinfeld, and Athanasios Nenes. “Ccn Properties of Organic Aerosol Collected Below and within Marine Stratocumulus Clouds near Monterey, California.” Atmosphere 6, no. 11 (2015): 1590-607. http://dx.doi.org/10.3390/atmos6111590.
  52. Karavalakis, Georgios, Daniel Short, Diep Vu, Robert Russell, Maryam Hajbabaei, Akua Asa-Awuku, and Thomas D. Durbin. “Evaluating the Effects of Aromatics Content in Gasoline on Gaseous and Particulate Matter Emissions from Si-Pfi and Sidi Vehicles.” Environmental science & technology 49, no. 11 (2015/06/02 2015): 7021-31. http://dx.doi.org/10.1021/es5061726.
  53. Karavalakis, Georgios, Daniel Short, Diep Vu, Robert L. Russell, Akua Asa-Awuku, Heejung Jung, Kent C. Johnson, and Thomas D. Durbin. “The Impact of Ethanol and Iso-Butanol Blends on Gaseous and Particulate Emissions from Two Passenger Cars Equipped with Spray-Guided and Wall-Guided Direct Injection Si (Spark Ignition) Engines.” Energy 82, no. Supplement C (2015/03/15/ 2015): 168-79. http://dx.doi.org/https://doi.org/10.1016/j.energy.2015.01.023.
  54. Short, Daniel, Diep Vu, Thomas D. Durbin, Georgios Karavalakis, and Akua Asa-Awuku. “Particle Speciation of Emissions from Iso-Butanol and Ethanol Blended Gasoline in Light-Duty Vehicles.” Journal of Aerosol Science 84 (2015): 39-52. http://dx.doi.org/10.1016/j.jaerosci.2015.02.010.
  55. Short, Daniel Z., Diep Vu, Thomas D. Durbin, Georgios Karavalakis, and Akua Asa-Awuku. “Components of Particle Emissions from Light-Duty Spark-Ignition Vehicles with Varying Aromatic Content and Octane Rating in Gasoline.” Environmental science & technology 49, no. 17 (2015/09/01 2015): 10682-91. http://dx.doi.org/10.1021/acs.est.5b03138.
  56. Karavalakis, G., Short, D., Russell, R. L., Jung, H., Johnson, K. C., Asa-Awuku, A., & Durbin, T. D. (2014). Assessing the impacts of ethanol and isobutanol on gaseous and particulate emissions from flexible fuel vehicles. Environmental science & technology, 48(23), 14016-14024. https://doi.org/10.1021/es5034316
  57. Xue, Jian, Yang Li, Xiaoliang Wang, Thomas D. Durbin, Kent C. Johnson, Georgios Karavalakis, Akua Asa-Awuku, Mark Villela, David Quiros, Shaohua Hu, Tao Huai, Alberto Ayala, and Heejung S. Jung. “Comparison of Vehicle Exhaust Particle Size Distributions Measured by Smps and Eeps During Steady-State Conditions.” Aerosol Science and Technology 49, no. 10 (2015/10/03 2015): 984-96. http://dx.doi.org/10.1080/02786826.2015.1088146.
  58. Giordano, M., Espinoza, C., Asa-Awuku, A. 2014. Experimentally measured morphology of biomass burning aerosol and its impacts on CCN ability. Atmos. Chem. Phys. Discuss., 14, 12555-12589, doi:10.5194/acpd-14-12555-2014, 2014 (Online)
  59. Tan, C. L. C., Gao, S. Wee, B. S.,  Asa-Awuku, A. and  B. J. Thio, Adhesion of Dust Particles to Common Indoor Surfaces in Air-Conditioned Environment. Aerosol Science and Technology. Vol. 48: 5 p.541-551. , doi: 10.1080/02786826.2014.898835, 2014 (Online)
  60. X. Tang, D. Price, E. Praske, D. Vu, K. Purvis-Roberts, P. J. Sliva, D. R. Cocker, and A. Asa-Awuku. CCN Activity of Two Aliphatic Amine Secondary Aerosol. Atmospheric Chemistry and Physics. 5959-5967, doi:10.5194/acp-14-5959-2014, 2014(Online)
  61. Short, D. Z.,  M. R. Giordano,Y. Zhu, P. M. Fine, A. Polidori and A. Asa-Awuku.  A Unique On-line Method tto Water-Insoluble Particle Contributions. Aerosol Science and Technology. Vol. 48: 7 p.706-714. 9p, doi;10.1080/02786826.2014.916778, 2014 (Online)
  62. Karavalakis, G., Short, D., Vu, D., Villela, M., Asa-Awuku, A., Durbin, T. Evaluating the regulated emissions, air toxics, ultrafine particles, and black carbon from SI-PFI and SI-DI vehicles operating on different ethanol and iso-butanol blends.Fuel. Vol. 128: p.410-421., 2014 (Online)
  63. Giordano, M., Asa-Awuku, A. Rebuttal to Correspondence on “Changes in Droplet Surface Tension Affect the Observed Hygroscopicity of Photochemically Aged Biomass Burning Aerosol”. Env. Sci. & Tech. Vol. 48: 3 p.2084-2085, doi:10.1021/es405374r, 2014 (Online)
  64. Kreidenweis, S.M and A. Asa-Awuku.  Aerosol Hygroscopcity: Particle Water Content and its Role in Atmospheric Processes, Treatise on Geochemistry 2nd Edition. Editors: H. D. Holland, K.K. Turekian. Elseiver. Oxford. Vol. 5: p.331-361, 2014 (Online)
  65. Clark, C. H. , S. Nakao, A. Asa-Awuku, K. Sato, and D. R. Cocker. Real-time study of particle-phase products from α-pinene ozonolysis and isoprene photo-oxidation using particle into liquid sampling directly coupled to a time of flight mass spectrometer (PILS-ToF), Aerosol Sci. & Tech., 47 (12), doi: 10.1080/02786826.2013.844333, 2013 (Online)
  66. Giordano, M. R., D. Z. Short, E. Hosseini, W. Lichtenberg, and  A. Asa-Awuku. Changes in Droplet Surface Tension Affect the Observed Hygroscopicity of POnlinehotochemically Aged Biomass Burning Aerosol. Env. Sci. & Tech.doi:10.1021/es401867j, 2013 (Online).
  67. Tang, X., D. Price, E. Praske, S. A. Lee, M. A. Shattuck, K. Purvis-Roberts, P. Silva, A. Asa-Awuku, and D. R. Cocker III. NO3radical, OH radical and O3– initiated secondary aerosol formation from aliphatic amines- salt formation and the effect of water vapor. Atmos. Environ. 72, 105–112, 2013 (Online) 
  68. S. Nakao, P. Tang, X.Tang, C. H. Clark, L. Qi, E. Seo, A. Asa-Awuku, D. R. Cocker III. Density and elemental ratios of secondary organic aerosol: application of a density prediction method. Atmos.Environment, 68,  273 -277, 2013 (Online)
  69. Tang, X., Cocker III, D. R., and Asa-Awuku, A.: Are sesquiterpenes a good source of secondary organic cloud condensation nuclei (CCN)? Revisiting β-caryophyllene CCN, Atmos. Chem. Phys., 12, 8377-8388, doi:10.5194/acp-12-8377-2012, 2012.(Online)
  70. M. Y. Khan, M. Giordano , J. Gutierrez, W. A. Welch, A. Asa-Awuku, J. W. Miller, D. R. Cocker III, Benefits of Two Mitigation Strategies for Container Vessels: Cleaner Engines and Cleaner Fuels, Environmental Science and Technology. Environ. Sci. Technol., 2012, 46 (9), pp 5049–5056 DOI: 10.1021/es2043646 (Online)
  71. Tang, X.,  Z. Zheng, H S. Jung, A. Asa-Awuku. The Effects of Mainstream and Sidestream Environmental Tobacco Smoke Composition for Enhanced Condensational Droplet Growth by Water Vapor. Aerosol Science and Technology, Vol. 46, Iss. 7, 2012 (Online)
  72. Asa-Awuku, A.,  R. Moore, A. Nenes, R. Bahreini, C. A. Brock, A. Middlebrook, J. Holloway , T. Ryerson, J. Jimenez, P. DeCarlo , A. Hecobian, R. Weber , D. Tanner , R. Stickel and L. G. Huey ”Airborne Cloud Condensation Nuclei Measurements during the 2006 Texas Air Quality Study” J. Geophys. Res., 116, D11201, doi:10.1029/2010JD014874.  (Online)
  73. Zheng, Z., X. Tang, A. Asa-Awuku, H. Jung, Characterization of a Method for Aerosol Generation from Heavy Fuel Oil (HFO) as an Alternative to Emissions from Ship Diesel Engines, Journal of Aerosol Science, 41(12), 1143-1151, 2010 (Online)
  74. Asa-Awuku, A., Nenes, A., Gao, S., Flagan, R. C., and Seinfeld, J. H.: Water-soluble SOA from Alkene ozonolysis: composition and droplet activation kinetics inferences from analysis of CCN activity, Atmos. Chem. Phys., 10, 1585-1597, 2010. (Online)
  75. Asa-Awuku, A., M. A. Miracolo, J. H. Kroll, A. L. Robinson, and N. M. Donahue,  Mixing and phase partitioning of primary and secondary organic aerosols, Geophys. Res. Lett., 36, L15827, doi:10.1029/2009GL039301, 2009 (Online)
  76. Asa-Awuku, A., G. J. Engelhart., B.H. Lee, S.N. Pandis and   A. Nenes, Relating CCN activity, volatility, and droplet growth kinetics of β-caryophyllene secondary organic, Atmospheric Chemistry and Physics, 9, 795-812, 2009 (Online)
  77. Engelhart G. J., A. Asa-Awuku, A. Nenes and S. N. Pandis,  CCN activity and droplet growth kinetics of fresh and aged monoterpene secondary organic aerosol, Atmospheric Chemistry and Physics, 8, 3937-3949, 2008 (Online)
  78. Asa-Awuku, A., A. P. Sullivan,  C.J. Hennigan, R. J. Weber and A. Nenes, Investigation of Molar Volume and Surfactant Characteristics of water-soluble Organic Compounds in Biomass Burning Aerosol, Atmospheric Chemistry and Physics, 8, 799-812, 2008 (Online)
  79. Padró, L.T., A. Asa-Awuku, R. Morisson,  and A. Nenes, Inferring Thermodynamic Properties from CCN Activation Experiments a) Single-component and Binary Aerosols, Atmospheric Chemistry and Physics, 7, 5263-5274 , 2007 (Online)
  80. Asa-Awuku, A., and A. Nenes (2007), Effect of solute dissolution kinetics on cloud droplet formation: Extended Koehler theory, Journal of Geophysical. Research., 112, D22201, 2007  doi:10.1029/2005JD006934 (Online)

   Conference Papers:

  1. Karavalakis, George, Daniel Short, Diep Vu, Robert Russell, Akua Asa-Awuku, and Thomas Durbin. “A Complete Assessment of the Emissions Performance of Ethanol Blends and Iso-Butanol Blends from a Fleet of Nine Pfi and Gdi Vehicles.” SAE International Journal of Fuels and Lubricants 8, no. 2 (2015): 374-95. http://dx.doi.org/10.4271/2015-01-0957.
  2. Karavalakis, G., Short, D., Chen, V., Espinoza, C., Berte, T., Durbin, T., Asa-Awuku, A., Jung, H. 2014. “Evaluating Particulate Emissions from a Flexible Fuel Vehicle with Direct Injection When Operated on Ethanol and Iso-butanol Blends”,SAE Technical Paper, Accepted 2014 (Online)
  3. Karavalakis, G., Short, D., Vu, D., Villela, M., Russell, R., Jung, H., Asa-Awuku, A., and Durbin, T. “Regulated Emissions, Air Toxics, and Particle Emissions from SI-DI Light-Duty Vehicles Operating on Different Iso-Butanol and Ethanol Blends”, SAE Int. J. Fuels Lubr. 7(1):183-199, 2014, doi:10.4271/2014-01-1451.(Online)
  4. Li, Y., Jian, X., Johnson, K., Durbin, T., Villela, M., Pham, L., Hosseini, E., Short, D., Asa-Awuku, A., Karavalakis, G., Quiros, D., Hu, S., Huai, T., Ayala, A., Jung, H. Determination of Suspended Exhaust PM Mass for Light-Duty Vehicles, SAE Technical Paper 2014-01-1594, 2014, doi:10.4271/2014-01-1594. (Online)
  5. Karavalakis, G., Short, D., Hajabeibi, M., Vu, D., Villela, M., Russell, R., Durbin, T., Asa-Awuku, A. 2013. Criteria Emissions, Particle Number Emissions, Size Distributions, and Black Carbon Measurements from PFI Gasoline Vehicles Fuelled with Different Ethanol and Butanol Blends . SAE, doi:10.4271/2013-01-1147. 10p. Detroit, Michigan. 04/08/2013 (Online)