Subhasis Ghoshal

Professor; Director, Trottier Institute for Sustainability in Engineering and Design, McGill University
Academic title(s): 



Subhasis Ghoshal
Contact Information
Fax number: 
Email address: 
subhasis.ghoshal [at]

Professor Ghoshal's expertise is in the area of environmental engineering. He conducts research on the remediation of contaminated soil and groundwater, and on soil and water quality. His current research in on the environmental fate, transport and reactivity of engineered nanomaterials and nanopesticides, and on adapting bioremediation practices for sub-arctic regions. The research involves both laboratory studies and mathematical modelling of physiochemical and biological processes.


B.E. (Civil Eng, Jadavpur University, India, 1989)
M.S. (Civil Eng, University of Missouri-Columbia, 1991)
Ph.D. (Civil (Env) Eng, Carnegie Mellon University, 1995)
Postdoctoral Research Fellow (University of Michigan, 1995-1997)

Areas of expertise: 

Environmental engineering

  • CIVE 451 Geoenvironmental Engineering 3 Credits
      Offered in the:
    • Fall
    • Winter
    • Summer

  • CIVE 521 Nanomat & the Aquatic Environ 3 Credits
      Offered in the:
    • Fall
    • Winter
    • Summer

  • CIVE 686 Site Remediation 4 Credits
      Offered in the:
    • Fall
    • Winter
    • Summer

Research areas: 
Environmental Engineering
Awards, honours, and fellowships: 
  • NSERC Discovery Accelerator Award (2016-2019)
  • William and Rhea Seath Award in Engineering Innovation (2017)
  • Engineering Innovation Award (2015)
  • William Dawson Scholar (2005 - 2015)
  • Appointed by the Minister for Environment, Govt. of Canada, on his Advisory Panel for Evaluation of Environmental Impacts of Oil Sands Operations (September 2010 – December 2010).
  • 1998 Petro-Canada Young Innovator Award
Selected publications: 


  • Google Scholar Page

  • Alizadeh, S., Abdul Rahim, A., Guo, B., Hawari, J., Ghoshal, S., Comeau, Y. (2019) Impacts of continuous inflow of low concentrations of silver nanoparticles on biological performance and microbial communities of aerobic heterotrophic wastewater biofilm. Environmental Science and Technology, 53 (15): 9148-9159.
  • Zhang, Y., Liu, J., Moores, A., Ghoshal, S. (2019) New insights into the degradation mechanism of perfluorooctanoic acid by persulfate from density functional theory and experimental data. Environmental Science and Technology, 53(15): 8672-8681.
  • Zhang, T., Lowry, G.V., Capiro, N.L., Chen, J., Chen, W., Chen, Y., Dionysiou, D.D., Elliott, D.W., Ghoshal, S., Hofmann, T., Hsu-Kim, H., Hughes, J., Jiang, C., Jiang, G., Jing, C., Kavanaugh, M., Li, Q., Liu, S,, Pan, B., Phenrat, T., Qu, X., Quan, X., Saleh, N., Vikesland, P.J., Wang, Q., Westerhoff, P., Wong, M.S., Xia, T., Xing, B., Yan, B., Zhang, L., Zhou, D., Alvarez, P.J. (2019) Opportunities and challenges for nanotechnology and advanced materials for in situ remediation of contaminated sites. Environmental Science: Nano, 6:1283-1302. (IF=7.7)
  • Han, Y., Lowry, G.V., Ghoshal, S., Chen, J. (2019) A comparison of the effects of natural organic matter on sulfidated and nonsulfidated nanoscale zerovalent iron colloidal stability, toxicity, and reactivity to trichloroethylene. Science of the Total Environment, 671:254-261. (IF=5.59)
  • Alizadeh, S., Ghoshal, S. Comeau, Y. (2019) Fate and inhibitory effect of silver nanoparticles in high rate moving bed biofilm reactors. Science of the Total Environment, 647: 1199–1210.
  • Li, R., Munoz, G., Liu, Y., Sauvé, S., Ghoshal, S., Liu, J. (2019) Impact of Biopile Remediation of Petroleum Hydrocarbons on Perfluoroalkyl and Polyfluoroalkyl Substances (PFASs) as Co-contaminants. Journal of Hazardous Materials. 362:140-147. (IF=7.65)


  • Google Scholar Page

  • Bhattacharjee, S., Ghoshal, S. (2018) Optimal design of sulfidated nanoscale zerovalent iron for enhanced trichloroethene degradation. Environmental Science and Technology. 52: 11078−11086.
  • Rocard,J., Asadishad, B., Samonte, P.R., Ghoshal, S., Tufenkji, N. (2018) Natural Freeze-Thaw Cycles May Increase the Risk Associated with Salmonella Contamination in Surface and Groundwater Environments. Water Research X, 1: 100005.
  • Bhattacharjee, S., Ghoshal, S. (2018) Sulfidation of nanoscale zerovalent iron in the presence of two organic macromolecules and its effects on trichloroethene degradation. Environmental Science: Nano, 5: 782–791– Selected by the journal as one of ‘Best Papers of 2018’.
  • Asadishad, B., Chahal, S., Akbari, A., Cianciarelli, V., Azodi, M., Ghoshal, S., Tufenkji, N. (2018) Amendment of Agricultural Soil with Metal Nanoparticles: Effects on Soil Enzyme Activity and Microbial Community Composition. Environmental Science and Technology, 52(4): 1908–1918.
  • Zhang, Y., Yue, Z., Liu, J., Ghoshal, S. (2018) Sorption of Perfluoroalkyl Acids to Fresh and Aged Nanoscale Zerovalent Iron Particles. Environmental Science and Technology, 52 (11): 6300–6308.


  • Google Scholar Page

  • Chang, W., Akbari, A., David, C., Ghoshal, S. (2017) Selective biostimulation of cold- and salt-tolerant hydrocarbon-degrading Dietzia maris in petroleum-contaminated sub-Arctic soils with high salinity. Journal of Chemical Technology and Biotechnology. 93: 294–304.


  • Google Scholar Page

  • Azodi, M., Sultan, Y., Ghoshal, S. (2016) Dissolution Behavior of Silver Nanoparticles and Formation of Secondary Silver Nanoparticles in Municipal Wastewater by Single Particle ICP-MS. Environmental Science and Technology, 50(12): 13318−13327.

  • Akbari, A., Ghoshal, S. (2016) Growth and Attachment-Facilitated Entry of Bacteria into Submicrometer Pores Can Enhance Bioremediation and Oil Recovery in Low-Permeability and Microporous Media. Environmental Science and Technology Letters, 3(11): 399-403.

  • Bhattacharjee, S., Ghoshal, S. (2016) Phase transfer of palladized nanoscale zerovalent iron for trichloroethene remediation. Environmental Science and Technology, 50: 8631−8639.

  • Bhattacharjee, S., Basnet, M., Tufenkji, N., Ghoshal, S. (2016) Effects of rhamnolipid and carboxymethylcellulose coatings on reactivity of palladium-doped nanoscale zerovalent iron particles. Environmental Science and Technology, 50:1812–1820.

  • Li, J., Rajajayavel, S.C.R., Ghoshal, S. (2016) Transport of polyelectrolyte-coated zerovalent iron nanoparticles in a sand tank: Effects of sand grain size, nanoparticle concentration and injection velocity. Chemosphere. 150: 8-16.

  • Li, J., Ghoshal, S. (2016) Comparison of the Transport of the Aggregates of Nanoscale Zero Valent Iron under Vertical and Horizontal Flow. Chemosphere. 144: 1398-1407. 

  • Basnet, M., Gershanov, A. Wilkinson, K.J., Ghoshal, S., Tufenkji, N. (2016). Interaction between Palladium-Doped Zerovalent Iron Nanoparticles and Biofilm in Granular Porous Media: Characterization, Transport and Viability. Environmental Science: Nano, 3:127-137.


  • Google Scholar Page

  • Akbari, A., Ghoshal, S. (2015) Bioaccessible Porosity in Soil Aggregates and Implications for Biodegradation of High Molecular Weight Petroleum Compounds. Environmental Science and Technology, 49:14368-14375.

  • Li, J., Xie, X., Ghoshal, S. (2015) A correlation equation for predicting single-collector contact efficiency of colloids in horizontal flow. Langmuir. 31 (26), pp 7210–7219.

  • Rolshausen, G., Phillip, D.; Beckles, D.; Akbari, A.; Ghoshal, S.; Hamilton, P.; Tyler, C.; Scarlett, A.; Ramnarine, I.; Bentzen, P.; Hendry, A. (2015) Do stressful conditions make adaptation difficult? Guppies in the oil-polluted environments of southern Trinidad. Evolutionary Applications. 8: 854–870.

  • Li, J., Bhattacharjee, S., Ghoshal, S. (2015) The effects of viscosity of carboxymethyl cellulose on aggregation and transport of nanoscale zerovalent iron. Colloids and Surfaces A: Physicochemical and Engineering Aspects. 481:451-459.

  • Akbari, A., Ghoshal, S. (2015) Effects of Diurnal Temperature Variation on Microbial Community and Petroleum Hydrocarbon Biodegradation in Contaminated Soils from a sub-Arctic Site. Environmental Microbiology, 17, 4916–4928.

  • Rajajayavel, S.C.R., Ghoshal, S. (2015) Enhanced reductive dechlorination of trichloroethylene by sulfidated nanoscale zero valent iron. Water Research. 78:144-153.

  • Basnet, M., Di Tommaso, C., Ghoshal, S., Tufenkji, N. (2015). Reduced Transport Potential of a Palladium-doped Zero Valent Iron Nanoparticle in a Water Saturated Loamy Sand. Water Research, 68:354-363.

  • Kashef-Haghighi, S., Shao, Y., Ghoshal, S. (2015) Mathematical Modeling of Accelerated CO2 Curing of Concrete in a Flow-Through Reactor.  Cement and Concrete Research. 67:1-10.

Current research: 
  • Characterization and fate of engineered nanoparticles in wastewaters and natural environments.
  • Use of nanoparticles for in situ remediation of chlorinated solvent and perfluorinated surfactant-contaminated sites
  • Synthesis, design and characterization of nanocarriers for pesticides and growth factors for sustainable agriculture
  • Bioremediation of petroleum hydrocarbons in Arctic and sub-Arctic (cold) regions
  • Effects of freeze-thaw on transport and survivability of pathogens in porous media
Areas of interest: 
  • Experimental evaluation and mathematical modelling of environmental fate and transport processes of dissolved and (nano)colloidal contaminants in natural environments and in treatment systems.
  • Sustainability of nanomaterials.
  • Evaluation, assessment and development of soil and groundwater remediation technologies for sites contaminated with perfluorinated surfactants, chlorinated solvents, petroleum oils, coal tars, pesticides and complex chemical mixtures.
  • Pathogen transport and survivability in porous media.
Professional activities: 
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