Claudio Mazzoleni

Claudio Mazzoleni


  • Associate Professor, Physics
  • PhD, Atmospheric Sciences

Research Description

The main research interest of the Environmental Optics Laboratory is the study of the effects that anthropogenic and natural particulates suspended and transported in the atmosphere (aerosols) have on Earth's climate and air quality. The net effect on climate from greenhouse gases, aerosols, and clouds is a complex integral that is not well quantified. This is also due to gaps in our knowledge of real world particle optical, physical and chemical properties, and their spatial and temporal distributions. We study the optical properties and the morphology of aerosols and their interaction with solar radiation and clouds by developing new instrumentations, performing laboratory studies, and analyzing data and samples collected in different locations of the globe, from polluted urban areas to remote regions. The goal is to provide new data to advance our fundamental understanding of atmospheric processes and in the end, enhance the performances of future climate models and improve air quality.

To know more about our research and on-going projects, please visit the Environmental Optics Laboratory page (


  • Atmospheric Science
  • Aerosol properties (optical, physical and morphological) and effects on clouds and climate
  • Instrument development and environmental optics

Selected Publications

  • Full list of publications at Read More
  • Gourihar Kulkarni, Swarup China, Shang Liu, Manjula Nandasiri, Noopur Sharma, Jacqueline Wilson, Allison C. Aiken, Duli Chand, Alexander Laskin, Claudio Mazzoleni, Mikhail Pekour, John Shilling, Vaithiyalingam Shutthanandan, Alla Zelenyuk, Rahul A. Zaveri, “Ice nucleation activity of diesel soot particles at Cirrus relevant temperature conditions: Effects of hydration, secondary organics coating, soot morphology, and coagulation”, Geophysical Research Letters, DOI: 10.1002/2016GL068707, accepted manuscript online 30 March, 2016
  • Kelken Chang, Jim Bench, Matt Brege, Will Cantrell, Kamal K. Chandrakar, David Ciochetto, Claudio Mazzoleni, Lynn R. Mazzoleni, Dennis Niedermeier and Raymond A. Shaw, “A laboratory facility to study gas-aerosol-cloud interactions in a turbulent environment: The Π Chamber”, Bulletin of the American Meteorological Society, DOI:, published online on March 26, 2016
  • Swarup China, Gourihar Kulkarni, Barbara V. Scarnato, Noopur Sharma, Mikhail Pekour, John E. Shilling, Jacqueline Wilson, Alla Zelenyuk, Duli Chand, Shang Liu, Allison C. Aiken, Manvendra K. Dubey, Alexander Laskin, Rahul A. Zaveri and Claudio Mazzoleni, “Morphology of diesel soot residuals from supercooled water droplets and ice crystals: implications for optical properties”, Environmental Research Letters, 10, 114010, 2015
  • Shang Liu, Allison C. Aiken, Kyle Gorkowski, Manvendra K. Dubey, Christopher D. Cappa, Leah R. Williams, Scott C. Herndon, Paola Massoli, Edward C. Fortner, Puneet S. Chhabra, William A. Brooks, Timothy B. Onasch, John T. Jayne, Douglas R. Worsnop, Swarup China, Noopur Sharma, Claudio Mazzoleni, Lu Xu, Nga L. Ng, Dantong Liu, James D. Allan, James D. Lee, Zoë L. Fleming, Claudia Mohr, Peter Zotter, Sönke Szidat and André S. H. Prévôt, “Enhanced light absorption by mixed source black and brown carbon particles in UK winter”, Nature Communications, 6, 8435 doi: 10.1038/ncomms9435, 2015
  • Detlev Helmig, Mauricio Muñoz, Jacques Hueber, Claudio Mazzoleni, Lynn Mazzoleni, Richard C. Owen, Maria Val-Martin, Paulo Fialho, Christian Plass-Duelmer, Paul I. Palmer, Alastair C. Lewis, Gabriele Pfister, “Climatology and atmospheric chemistry of the non-methane hydrocarbons ethane and propane over the North Atlantic”, Elementa: Science of the Anthropocene, 3:000054, doi: 10.12952/journal.elementa.000054, 2015
  • Katja Dzepina, Claudio Mazzoleni, Paulo Fialho, Sawrup China, Bo Zhang, Robert C. Owen, Detlev Helmig, Jacques Hueber, Sumit Kumar, Judith A. Perlinger, Louisa Kramer, Mike P. Dziobak, Marian T. Ampadu, Shet Olsen, Don J. Wuebbles, and Lynn R. Mazzoleni, “Molecular characterization of free tropospheric aerosol collected at the Pico Mountain Observatory: a case study with long range transported biomass burning plumes”, Atmospheric Chemistry and Physics, 15, 5047-5068, 2015
  • B. V. Scarnato, S. China, K. Nielsen, and C. Mazzoleni, “Perturbations of the optical properties of mineral dust particles”, Atmospheric Chemistry and Physics 15, 6913-6928, 2015
  • S. China, B. Scarnato, R. C. Owen, B. Zhang, M. T. Ampadu, S. Kumar, K. Dzepina, M. P. Dziobak, P. Fialho, J. A. Perlinger, J. Hueber, D. Helmig, L. R. Mazzoleni and C. Mazzoleni, “Morphology and Mixing State of Aged Soot Particles at a Remote Marine Free Troposphere Site: Implications for Optical Properties”, Geophysical Research Letters,42(4): 1243-1250, 2015
  • X. Woodward, A. Kostinski, S. China, C. Mazzoleni, W. Cantrell, “Characterization of dust particles' 3D shape and roughness with nanometer resolution”, Aerosol Science and Technology, 49(4), 229-238, 2015
  • Rajan Chakrabarty, Nicholas D., Beres, Hans Moosmüller, Swarup China, Claudio Mazzoleni, Manvendra K. Dubey, Li Liu, and Michael I. Mishchenko, “Soot superaggregates from flaming wildfires and their direct radiative forcing”, Scientific Reports, 4 : 5508, 2014