Submitted & In Review

Chemical composition and source attribution of submicron aerosol particles in the summertime Arctic lower troposphere, F. Köllner, J. Schneider, M.D. Willis, H. Schulz, D. Kunkel, H. Bozem, P. Hoor, T. Klimach, F. Helleis, J. Burkart, W.R. Leaitch, A.A. Aliabadi, J.P.D. Abbatt, A.B. Herber, S. Borrmann, Atmospheric Chemistry and Physics Discussions. (data archive)

Elemental Analysis of Oxygenated Organic Coating on Black Carbon Particles using a Soot-Particle Aerosol Mass Spectrometer, M. Ma, L.H. Rivellini, Y.X. Cui, M.D. Willis, R.Wilkie, J.P. D. Abbatt, M.R. Canagaratna, J.Wang, X. Ge, and A.K.Y. Lee, Atmospheric Measurement Techniques Discussions, 2020.


32. A critical analysis of electrospray techniques for the determination of accelerated rates and mechanisms of chemical reactions in droplets, G. Rovelli, M.I. Jacobs, M.D. Willis, R.J. Rapf, A.M. Prophet, K.R. Wilson, Chemical Science, 2020.

31. Combining mass spectrometry of picoliter samples with a multi-compartment electrodynamic trap for probing the chemistry of droplet arrays, M.D. Willis, G. Rovelli, K.R. Wilson, Analytical Chemistry, 92, 17, 11943–11952, 2020. (code)

30. A kinetic description of how interfaces accelerate reactions in micro-compartments, K.R. Wilson, A.P. Prophet, G. Rovelli, M.D. Willis, R.J. Rapf, M.I. Jacobs, Chemical Science, 11, 8533–8545, 2020.

29. Vertical profiles of light absorption and scattering associated with black-carbon particle fractions in the springtime Arctic above 79N, W.R. Leaitch, J.K. Kodros, M.D. Willis, S. Hanna, H. Schulz, E. Andrews, H. Bozem, J. Burkart, P. Hoor, F. Kolonjari, J.A. Ogren, S. Sharma, M. Si, K. Von Salzen, A.K. Bertram, A. Herber, J.P.D. Abbatt, J.R. Pierce, Atmospheric Chemistry and Physics, 20, 10545–10563 2020. (data archive)

28. Validation of MAX-DOAS retrievals of aerosol extinction, SO2 and NO2 through comparison with lidar, sun photometer, Active-DOAS and aircraft measurements in the Athabasca Oil Sands Region, Z. Davis, U. Frieß, K. Strawbridge, M. Aggarwaal, S. Baray, E. Schnitzler, A. Lobo, A.E. Fioletov, I. Abboud, C.A. McLinden, J. Whiteway, M.D. Willis, A.K.Y. Lee, J. Brook, J. Olfert, J. O’Brien, R. Staebler, H.D. Osthoff, C. Mihele, R. McLaren, Atmospheric Measurement Techniques, 13, 1129–1155, 2020.


27. Fostering multidisciplinary research on interactions between chemistry, biology, and physics within the coupled cryosphere-atmosphere system, J.L. Thomas, J.P. Stutz, M.M. Frey, T. Bartels-Rauch, K. Altieri, F. Baladima, J. Browse, M. Dall-Osto, L. Marelle, J. Mouginot, J.G. Murphy, D. Nomura, K. Pratt, M.D. Willis, P. Zieger, J. Abbatt, T.A. Douglas, M.C. Facchini, J. France, A.E. Jones, K. Kim, P.A. Matrai, V.F. McNeill, A. Saiz-Lopez, P. Shepson, N. Steiner, K.S. Law, S.R. Arnold, B. Delille, J. Schmale, J. Sonke, A. Dommergue, D. Voisin, M.L. Melamed, J. Gier, Elementa: Science of the Anthropocene, 7, 58, 2019.

26. Aircraft-based measurements of High Arctic springtime aerosol show evidence for vertically varying sources, transport and composition, M.D. Willis, H. Bozem, D. Kunkel, A.K.Y. Lee, H. Schulz, J. Burkart, A.A. Aliabadi, A.B. Herber, W.R. Leaitch, J.P.D. Abbatt, Atmospheric Chemistry and Physics, 19, 57–76, 2019. (data archive, code)

25. Characterization of transport regimes and the polar dome during both Arctic Spring and Summer using in-situ Aircraft Measurements, H. Bozem, P.M. Hoor, D. Kunkel, F. Köllner, J. Schneider, A.B. Herber, H. Schulz, W.R. Leaitch, M.D. Willis, J. Burkart, J.P.D. Abbatt, Atmospheric Chemistry and Physics, 19, 15049–15071, 2019. (data archive)

24. New insights into aerosol and climate in the Arctic, J.P.D. Abbatt, W.R. Leaitch, A.A. Aliabadi, A.K. Bertram, J.P. Blanchet, A. Boivin-Rioux, H. Bozem, J. Burkart, R.Y.W. Chang, J. Charette, J.P. Chaubey, R.J. Christensen, A. Cirisan, D.B. Collins, B. Croft, J. Dionne, G.J. Evans, C.G. Fletcher, R. Ghahremaninezhad, E. Girard, W. Gong, M. Gosselin, M. Gourdal, S.J. Hanna, H. Hayashida, A.B. Herber, S. Hesaraki, P.M. Hoor, L. Huang, R. Hussherr, V.E. Irish, S.A. Keita, J.K. Kodros, F. Köllner, F. Kolonjari, D. Kunkel, L.A. Ladino, K. Law, M. Levasseur, Q. Libois, J. Liggio, M. Lizotte, K.M. Macdonald, R. Mahmood, R.V. Martin, R.H. Mason, L.A. Miller, A. Moravek, E. Mortenson, E.L. Mungall, J.G. Murphy, M. Namazi, A.L. Norman, N.T. O’Neill, J.R. Pierce, L.M. Russell, J. Schneider, H. Schulz, S. Sharma, M. Si, R.M. Staebler, N.S. Steiner, M. Gali, J.L. Thomas, K. von Salzen, J.J.B. Wentzell, M.D. Willis, G.R. Wentworth, J.W. Xu, and J.D. Yakobi-Hancock, Atmospheric Chemistry and Physics, 19, 2527–2560, 2019. (NETCARE data archive)

23. Arctic marine secondary organic aerosol contributes significantly to summertime particle size distributions in the Canadian Arctic Archipelago, B. Croft, R. V. Martin, D. Collins, W. R. Leaitch, R.-Y. Chang, P. Hayes, G. Wentworth, A. Moravek, J. Murphy, J. K. Kodros, A. L. Hodshire, L. Huang, S. Sharma, J. Burkart, E. Mungall, M.D. Willis, J. P. D. Abbatt, and J. R. Pierce, Atmospheric Chemistry and Physics, 19, 2787–2812, 2019. (NETCARE data archive)

22. A Large Contribution of Anthropogenic Organo-Nitrates to Secondary Organic Aerosol in the Alberta Oil Sands, A.K.Y. Lee, M.G. Adam, J. Liggio, S.M. Li, L. Kun, M.D. Willis, J.P.D. Abbatt, T.W. Tokarek, C.A. Odame-Ankrah, H.D. Osthoff, K. Strawbridge, and J. R. Brook, Atmospheric Chemistry and Physics,19, 12209–12219, 2019.

21. Ice nucleating particles in the marine boundary layer in the Canadian Arctic during summer 2014, V.E. Irish, S.J. Hanna, M.D. Willis, S. China, J.L. Thomas, G.R. Wentworth, J.J.B. Wentzell, A Cirisan, W.R. Leaitch, J.G. Murphy, J.P.D. Abbatt, A. Lakin, E. Girard, A.K. Bertram, Atmospheric Chemistry and Physics, 19, 1027–1039, 2019. (data archive)


20. Processes controlling the composition and abundance of Arctic aerosol, M.D. Willis, W.R. Leaitch, J.P.D. Abbatt, Reviews of Geophysics, 56, 4, 621–671, 2018.

19. High Arctic aircraft measurements characterising black carbon vertical variability in spring and summer, H. Schulz, H. Bozem, M. Zanatta, W.R. Leaitch, A.B. Herber, J. Burkart, P.M. Hoor, M.D. Willis, J.P.D. Abbatt, R. Gerdes, Atmospheric Chemistry and Physics, 19, 2361–2384, 2018. (NETCARE data archive)

18. Size-resolved mixing state of black carbon in the Canadian high Arctic and implications for simulated direct radiative effect, J. K. Kodros, S. Hanna, A. Bertram, W.R. Leaitch, H. Schulz, A. Herber, M. Zanatta, J. Burkart, M.D. Willis, J.P.D. Abbatt and J.R. Pierce, Atmospheric Chemistry and Physics, 18, 11345–11361, 2018. (NETCARE data archive)

17. Principal component analysis of summertime ground site measurements in the Athabasca oil sands: Sources of IVOCs, T.W. Tokarek, C.A. Odame-Ankrah, J.A. Huo, R. McLaren, A. K. Y. Lee, M.G. Adam, M.D. Willis, J. P. D. Abbatt, C. Mihele, A. Darlington, R.L. Mittermeier, K. Strawbridge, K.L. Hayden, J.S. Olfert, E.G. Schnitzler, D.K. Brownsey, F.V. Assad, G.R. Wentworth, A.G. Tevlin, D. E. J. Worthy, S.-M. Li, J. Liggio, J.R. Brook, and H. D. Osthoff, Atmospheric Chemistry and Physics, 18, 17819–17841, 2018.


16. Evidence for marine biogenic influence on summertime Arctic aerosol, M.D. Willis, F. Köllner, J. Burkart,  H. Bozem, J.L. Thomas, J. Schneider, A.A. Aliabadi,  P. Hoor,  H. Schulz, A. Herber, W.R. Leaitch and J.P.D. Abbatt, Geophysical Research Letters, 44:6460–6470, 2017. (data archive, code)

15. Summertime observations of elevated levels of ultrafine particles in the high Arctic marine boundary layer, J. Burkart, M.D. Willis, H. Bozem, J.L. Thomas, K. Law, P. Hoor, A.A. Aliabadi, F. Köllner, J. Schneider, A. Herber, J.P.D. Abbatt, and W.R. Leaitch, Atmospheric Chemistry and Physics, 17:5515–5535, 2017. (data archive)

14. Particulate trimethylamine in the summertime Canadian high Arctic lower troposphere, F. Köllner, J. Schneider, M.D. Willis, T. Klimach, F. Helleis, H. Bozem, D. Kunkel, P. Hoor, J. Burkart, W.R. Leaitch, A.A. Aliabadi, J.P.D. Abbatt, A.B. Herber, Atmospheric Chemistry and Physics, 17:13747-13766, 2017.

13. Source attribution of Arctic black carbon constrained by aircraft and surface measurements, J. Xu, R.V. Martin, A. Morrow, S. Sharma, L. Huang, W.R. Leaitch, J. Burkart, H. Schulz, M. Zanatta, M.D. Willis, D.K. Henze, C.J. Lee, A.B. Herber, and J.P.D. Abbatt, Atmospheric Chemistry and Physics, 17:11971-11989, 2017.

12. Microlayer source of oxygenated volatile organic compounds in the summertime marine Arctic boundary layer, E.L. Mungall, J.P.D. Abbatt, J.J.B. Wentzell, A.K.Y. Lee, J.L. Thomas, M. Blaise, M. Gosselin, L.A. Miller, T. Papakyriakou, M.D. Willis, and J. Liggio, Proceedings of the National Academy of Sciences of the USA, 114:6203–6208, 2017. (data archive)


11. Growth of nucleation mode particles in the summertime Arctic: a case study, M.D. Willis, J. Burkart, J.L. Thomas, F. Köllner, J. Schneider, H. Bozem, P. Hoor, A.A. Aliabadi, H. Schulz, A. Herber, R. Leaitch and J.P.D. Abbatt, Atmospheric Chemistry and Physics, 16:7663–7679, 2016. (data archive)

10. Quantification of black carbon mixing state from traffic: implications for aerosol optical properties, M.D. Willis, R.M. Healy, N. Riemer, M. West, J.M. Wang, C.H. Jeong, J.C. Wenger, G.J. Evans, J.P.D. Abbatt and A.K.Y. Lee, Atmospheric Chemistry and Physics, 16:4693–4706, 2016.

9. Single particle characterization of biomass burning organic aerosol: evidence for non-uniform mixing of high molecular weight organics and potassium, A.K.Y. Lee, M.D. Willis, R.M. Healy, J.M. Wang, C.H. Jeong, J.C. Wenger, G.J. Evans and J.P.D. Abbatt, Atmospheric Chemistry and Physics, 16:5561–5572, 2016.

8. Effects of 20 — 100 nanometre particles on liquid clouds in the clean summertime Arctic, W.R. Leaitch, A. Korolev, A.A. Aliabadi, J. Burkart, M.D. Willis, H. Bozem, P. Hoor, F. Köllner, J. Schneider, A. Herber, C. Konrad, R. Brauner, J.P.D. Abbatt, Atmospheric Chemistry and Physics, 16:11107–11124, 2016. (data archive)

7. Ship emissions measurement in the Arctic from plume intercepts of the icebreaker Amundsen from the Polar 6 aircraft platform, A.A. Aliabadi, J.L. Thomas, A. Herber, R.M. Staebler, W.R. Leaitch, K.S. Law, L. Marelle, J. Burkart, M.D. Willis, J.P.D. Abbatt, H. Bozem, F. Köllner, J. Schneider and M. Levasseur, Atmospheric Chemistry and Physics, 16:7899-7916, 2016. (data archive)


6. Connecting the oxidation of soot to its redox cycling abilities, M. Antiñolo, M.D. Willis, S. Zhou, J.P.D. Abbatt, Nature Communications, 6:6812, 2015.

5. Mixing state of carbonaceous aerosol in an urban environment: single particle characterization using the soot particle AMS, A.K.Y. Lee, M.D. Willis, R.M. Healy, T.B. Onasch, J.P.D. Abbatt, Nature Communications, 15:1823–1841, 2015.

4. Light absorbing properties of ambient black carbon and brown carbon from fossil fuel and biomass burning sources, R.M. Healy,  J.M. Wang, C.H. Jeong, A. K. Y. Lee, M. D. Willis, E. Jaroudi, N. Zimmermann, N. Hilker, M. Murphy, S. Eckhardt, A. Stohl, J.P.D. Abbatt, J. C. Wenger and G.J. Evans., Journal of Geophysical Research Atmospheres, 120:6619–6633, 2015.


3. Collection efficiency of the soot-particle aerosol mass spectrometer (SP-AMS) for internally mixed particulate black carbon, M.D. Willis, A.K.Y. Lee, T.B. Onasch, E.C. Fortner, L.R. Williams, A.T.Lambe, D.R. Worsnop, and J.P.D. Abbatt, Atmospheric Measurement Techniques, 7:4507–4516, 2014.

2. Delicate polydimethylsiloxane hollow fibre membrane interfaces for condensed phase membrane introduction mass spectrometry, M.D. Willis, K.D. Duncan, E.T. Krogh, C.G. Gill, Rapid Communications in Mass Spectrometry, 28:1–11, 2014.


1. A miniature condensed-phase membrane introduction mass spectrometry probe for direct and on-line measurements of pharmaceuticals and contaminants in small, complex samples, K.D. Duncan, M.D. Willis, E.T. Krogh, C.G. Gill, Rapid Communications in Mass Spectrometry, 27:1213–1221, 2013.