CHEMBC is a Marie Curie International Outgoing Fellowship awarded to Dr Robert Healy, funded by the European Commission. It is a 3 year project with 2 years spent at University of Toronto, Canada and the third year spent at University College Cork, Ireland. The CHEMBC project is focussed on the simultaneous measurement of the chemical and optical properties of local and regional black carbon particles in Toronto.

Much of the uncertainty surrounding the impact of BC emissions on global climate arises from our relatively poor understanding of the relationship between BC mixing state and climate-relevant physical properties. Single particle mass spectrometry is one of only a handful of techniques that enable us to assess whether or not BC exists in ‘pure’ atmospheric particles as the sole component, or whether other primary and secondary species, for example organic aerosol and inorganic ions, are also internally mixed. As part of the CHEMBC project new data analysis techniques have been developed to answer these questions.

A range of state-of-the-art instruments and analytical techniques will be employed to identify different sources of black carbon detected at a receptor site in Toronto and to investigate the relationship between chemical composition, atmospheric age and optical properties.

CHEMBC is a Marie Curie International Outgoing Fellowship, awarded to Dr Robert Healy, funded by the European Commission.

Title: Chemical and Optical Properties of Black Carbon Particles (CHEMBC)
Fellow: Dr Robert Healy
Outgoing host scientist: Professor Greg Evans
Return host scientist: Dr John Wenger
Grant Number: 299755
Start Date: 1st August 2012
Completion Date: 31st July 2015
Amount of Award: €233,922.50
Activities: Training in statistical analysis methods, instrument design and testing, data mining, training in operation of state-of-the-art aerosol instrumentation, field measurements, personal development, outreach.

Black Carbon (BC) is a term used to describe primary carbonaceous particles formed through incomplete combustion processes, which include vehicular traffic, domestic solid fuel burning and biomass burning. BC influences climate directly through positive radiative forcing by absorbing solar radiation and also indirectly by altering the microphysical properties, amount and lifetime of clouds.

Compared to greenhouse gases, the atmospheric lifetime of black carbon is relatively low, and thus BC emission controls represent the most likely means by which to mitigate climate change quickly and effectively. However, improved scientific knowledge of the atmospheric processing of BC is required to provide policy makers with the relevant information to implement effective legislation.

Robert Healy. Chemical and optical properties of black carbon particles in Toronto (CHEMBC). Chemistry Department Seminar Series, University College Cork, Ireland, March 2015. Download Talk (2,576kB)

Watch on Youtube


Robert Healy, Greg Evans, Michael Murphy, Zsofia Juranyi, TorstenTritscher, Ernest Weingartner, Martin Gysel, Laurent Poulain, Katharina Kamilli, Alfred Wiedensohler, Ian O’Connor, Eoin McGillicuddy, John Sodeau, John Wenger. Estimation of hygroscopic growth for ambient single particles. International Aerosol Conference, Busan, Korea, September 2014. Download Talk (2,918kB)


Robert Healy, Nicole Riemer, John Wenger, Michael Murphy, Matthew West, Laurent Poulain, Alfred Wiedensohler, Ian O’Connor, Eoin McGillicuddy, John Sodeau, Greg Evans. Assessing aerosol mixing state and diversity. International Aerosol Conference, Busan, Korea, September 2014. Download Talk (1,994kB)


Robert M. Healy, Cheol-Heon Jeong, John C. Wenger, Deborah S. Gross, Jovanna Arndt, Ian P. O’Connor, Eoin McGillicuddy, John R. Sodeau, Xin Yang, Hong Chen, Yuanlong Huang, Berko Sierau, Manuel Dall’Osto, Nicole Riemer, Matthew West, Michael Murphy, Greg J. Evans. A Global Library of Single Particle Mass Spectrometer Data. International Aerosol Conference, Busan, Korea, September 2014. Download Poster (1,136kB)


Robert Healy. Identifying sources contributing to poor air quality using aerosol mass spectrometry techniques. Analytica Conference, "Aerosol and Health" Session, Munich, Germany, April 2014Download Talk (2,160kB)


Robert Healy. Assessing aerosol mixing state through single particle mass spectrometry. Department of Atmospheric Sciences Seminar Series, University of Illinois, February 2014. Download Talk (3,027kB)


Robert M. Healy, Jean Sciare, Laurent Poulain, Monica Crippa, Alfred Wiedensohler, André S. H. Prévôt, Urs Baltensperger, Roland Sarda-Estève, Maygan L. McGuire, Cheol-Heon Jeong, Eoin McGillicuddy, Ian P. O’Connor, John R. Sodeau, Alex K. Y. Lee, Megan D. Willis, Jonathan P. D. Abbatt, Greg J. Evans, John C. Wenger. Source apportionment of carbonaceous aerosol in urban environments through single particle mass spectrometry. American Association for Aerosol Research Fall Meeting, Portland, USA, September 2013Download Poster (483kB)


Robert M.Healy. Applications of Single Particle Mass Spectrometry in Urban Environments. Environment Canada Seminar Series, Toronto, Canada, January 2013. Download Talk (2,784kB)


Robert M. Healy. Applications of Single Particle Mass Spectrometry in Urban Environments. Department of Chemical Engineering Seminar Series, University of Toronto, Canada, October 2012Download Talk (855kB)


Robert M. Healy, Jean Sciare, Laurent Poulain, Alfred Wiedensohler, Cheol-Heon Jeong, Maygan McGuire, Greg J. Evans. Determination of mixing state and sources of wintertime organic aerosol in Paris using single particle mass spectrometry. American Geophysical Union Fall Meeting, San Francisco, USA, December 2012. Download Poster (1,069kB)


Robert M. Healy, Peter J. G. Rehbein, Cheol-Heon Cheong, John C. Wenger, Greg J. Evans. Exploring Gas-Particle Partitioning of Trimethylamine using Single Particle Mass Spectrometry. Atmospheric Chemical Mechanisms Meeting, UC Davis, USA, December 2012. Download Talk (1,309kB)


Robert M. Healy, Stig Hellebust, Ian P. O'Connor, John R. Sodeau, John C. Wenger, Greg J. Evans. Estimating the Relative Impact of Shipping, Traffic and Domestic Solid Fuel Combustion upon Air Quality in Cork City, Ireland - A Case Study. Society for Risk Analysis Annual Conference, San Francisco, USA, December 2012. Download Poster (975kB)


Robert M. Healy, Yang Chen, Ivan Kourtchev, Markus Kalberer, John Wenger. Investigation of SOA Composition from the Photolysis of 1-NitroNaphthalene using Single Particle Mass Spectrometry. American Association for Aerosol Research Fall Meeting, Minneapolis, USA, October 2012. Download Poster (1,364kB)


Peer-reviewed journal articles directly related to CHEMBC

Lee, A. K. Y., Willis, M. D., Healy, R. M., Onasch, T. B., and Abbatt, J. P. D.: Mixing state of carbonaceous aerosol in an urban environment: single particle characterization using the soot particle aerosol mass spectrometer (SP-AMS). Atmospheric Chemistry & Physics, 15, 1823-1841, 2015. DOI


Wang, J. M., Jeong, C. H., Zimmerman, N., Healy, R. M., Wang, D. K., Ke, F., and Evans, G. J.: Plume-based analysis of vehicle fleet air pollutant emissions and the contribution from high emitters. Atmos. Meas. Tech. Discuss., 8, 2881-2912, 2015. DOI


R. M. Healy, J. M. Wang, C.-H. Jeong, A. K. Y. Lee, M. D. Willis, E. Jaroudi, N. Zimmerman, N. Hilker, M. Murphy, S. Eckhardt, A. Stohl, J. P. D. Abbatt, J. C. Wenger and G. J. Evans. Light absorbing properties of ambient black carbon and brown carbon from fossil fuel and biomass burning sources. Journal of Geophysical Research (Atmospheres), 1-11, 2015. DOI


Dall'Osto, M., Hellebust, S. Healy, R. M., O'Connor, I. P., Kourtchev, I., Sodeau, J. R.,  Ovadnevaite, J., Ceburnis, D., O'Dowd, C. D., and Wenger, J. C. Apportionment of urban aerosol sources in Cork (Ireland) by synergistic measurement techniques. Science of The Total Environment, 493(0), 197-208, 2014. DOI


Healy, R. M., Evans, G. J., Murphy, M., Sierau, B., Arndt, J., McGillicuddy, E., O’Connor, I. P., Sodeau, J. R., Wenger, J. C.: Single particle speciation of alkylamines in ambient aerosol at five European sites, Anal. Bioanal. Chem., 1-11, 2014. DOI


Lee, A. K. Y., Willis, M. D., Healy, R. M., Onasch, T. B., and Abbatt, J. P. D.: Single particle characterization using the soot particle aerosol mass spectrometer (SP-AMS), Atmos. Chem. Phys. Discuss., 14, 15323-15361, 2014. DOI


Healy, R. M., Evans, G. J., Murphy, M., Jurányi, Z., Tritscher, T., Laborde, M., Weingartner, E., Gysel, M., Poulain, L., Kamilli, K. A., Wiedensohler, A., O'Connor, I. P., McGillicuddy, E., Sodeau, J. R., and Wenger, J. C.: Predicting hygroscopic growth using single particle chemical composition estimates, Journal of Geophysical Research: Atmospheres, 2014. DOI


McGuire, M. L., Chang, R. Y. W., Slowik, J. G., Jeong, C. H., Healy, R. M., Lu, G., Mihele, C., Abbatt, J. P. D., Brook, J. R., and Evans, G. J.: Enhancing non-refractory aerosol apportionment from an urban industrial site through receptor modelling of complete high time-resolution aerosol mass spectra. Atmospheric Chemistry & Physics, 2014, 14, 8017-8042. DOI


Kourtchev, I., Fuller, S. J., Giorio, C., Healy, R. M., Wilson, E., O'Connor, I. P., Wenger, J. C., McLeod, M., Aalto, J., Ruuskanen, T. M., Maenhaut, W., Jones, R., Venables, D. S., Sodeau, J. R., Kulmala, M., Kalberer M., Molecular composition of biogenic secondary organic aerosols using ultrahigh resolution mass spectrometry: comparing laboratory and field studies. Atmospheric Chemistry & Physics, 14, 2155-2167, 2014. DOI


Healy, R. M., Riemer, N., Wenger, J. C., Murphy, M., West, M., Poulain, L., Wiedensohler, A., O'Connor, I. P., McGillicuddy, E., Sodeau, J. R., and Evans, G. J.: Single particle diversity and mixing state measurements, Atmos. Chem. Phys., 14, 6289-6299, 2014. DOI


Healy, R. M., Sciare, J., Poulain, L., Crippa, M., Wiedensohler, A., Prévôt, A. S. H., Baltensperger, U., Sarda-Estève, R., McGuire, M. L., Jeong, C. H., McGillicuddy, E., O'Connor, I. P., Sodeau, J. R., Evans, G. J., and Wenger, J. C.: Quantitative determination of carbonaceous particle mixing state in Paris using single-particle mass spectrometer and aerosol mass spectrometer measurements. Atmos. Chem. Phys., 13, 9479-9496, 2013. DOI


Hamilton, J., Romero, M. T. B., Finessi, E., Rickard, A. R., Healy, R. M., Peppe, S., Adams, T. J., Daniels, M. J. S., Ball, S. M., Goodall, I. C. A., Monks, P. S., Borras Garcia, E., and Munoz, A.: Online and Offline Mass Spectrometric Study of the Impact of Oxidation and Ageing on Glyoxal Chemistry and Uptake onto Ammonium Sulfate Aerosols. Faraday Discussions, 2013. DOI


Collaborative peer-reviewed journal articles:

Giorio, C., Tapparo, A., Dall’Osto, M., Beddows, D. C. S., Esser-Gietl, J. K., Healy, R. M., and Harrison, R. M.: Local and Regional Components of Aerosol in a Heavily Trafficked Street Canyon in Central London Derived from PMF and Cluster Analysis of Single-Particle ATOFMS Spectra. Environmental Science & Technology, 2015. DOI


Riva, M., Healy, R. M., Flaud, P. M., Perraudin, E., Wenger, J. C. and Villenave, E. Kinetics of the Gas-Phase Reactions of Chlorine Atoms with Naphthalene, Acenaphthene and Acenaphthylene. Journal of Physical Chemistry A, 118, 3535−3540, 2014. DOI


Dall'Osto, M., Ovadnevaite, J., Ceburnis, D., Martin, D., Healy, R. M., O'Connor, I. P., Kourtchev, I., Sodeau, J. R., Wenger, J. C., and O'Dowd, C.: Characterization of urban aerosol in Cork city (Ireland) using aerosol mass spectrometry. Atmos. Chem. Phys., 13, 4997-5015, 2013. DOI


Dall'Osto, M., Querol, X., Alastuey, A., Minguillon, M. C., Alier, M., Amato, F., Brines, M., Cusack, M., Grimalt, J. O., Karanasiou, A., Moreno, T., Pandolfi, M., Pey, J., Reche, C., Ripoll, A., Tauler, R., Van Drooge, B. L., Viana, M., Harrison, R. M., Gietl, J., Beddows, D., Bloss, W., O'Dowd, C., Ceburnis, D., Martucci, G., Ng, N. L., Worsnop, D., Wenger, J., Mc Gillicuddy, E., Sodeau, J., Healy, R. M., Lucarelli, F., Nava, S., Jimenez, J. L., Gomez Moreno, F., Artinano, B., Prévôt, A. S. H., Pfaffenberger, L., Frey, S., Wilsenack, F., Casabona, D., Jiménez-Guerrero, P., Gross, D., and Cots, N.: Presenting SAPUSS: Solving Aerosol Problem by Using Synergistic Strategies in Barcelona, Spain. Atmos. Chem. Phys., 13, 8991-9019, 2013. DOI


Healy, R. M., Chen, Y., Kourtchev, I., Kalberer, M., O’Shea, D., and Wenger, J. C.: Rapid Formation of Secondary Organic Aerosol from the Photolysis of 1-Nitronaphthalene: Role of Naphthoxy Radical Self-reaction. Environmental Science & Technology, 46, 11813-11820, 2012. DOI


Jon Abbatt, University of Toronto
Nicole Riemer, University of Illinois
Jacqui Hamilton, University of York
Ivan Kourtchev, Markus Kalberer, University of Cambridge

Dr Healy’s Marie Curie IOF activities have been the subject of several academic news reports both in Ireland and Canada:

Cork to Toronto....And Back Again

 

Address:
Southern Ontario Centre for Atmospheric Aerosol Research
Department of Chemical Engineering and Applied Chemistry
University of Toronto
200 College Street,
Toronto, ON, Canada M5S 3E5

Tel: 416-978-5932

Email: robert.healy@utoronto.ca

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