Sandra McLellan

  • Professor, School Of Freshwater Sciences



  • PhD, Environmental Health, University of Cincinnati Medical Center, 1998
  • BS, Health Sciences, University of Wisconsin-Milwaukee, 1990

Research Interests

The major research focus of my laboratory is to investigate the connections between environmental processes and human health. Urban coastal areas are greatly impacted by pollution sources including stormwater runoff and sewage overflows. Oftentimes, pathogens are present that can contaminate our beaches and drinking water supplies. The overall goal of our research is understand pathogen fate in large freshwater systems such as the Great Lakes, and develop new approaches for assessing pollution sources so that strategies can be devised to protect the Great Lakes and human health.

Recent and Selected Publications

Roguet A, Esen O, Eren AM, Newton R, and McLellan S. 2020. FORENSIC: an Online Platform for Fecal Source Identification. mSystems 5 (2):e00869-19.

Feng S, McLellan SL. 2019. Highly Specific Sewage-Derived Bacteroides Quantitative PCR Assays Target Sewage-Polluted Waters. Appl Environ Microbiol 85:e02696-18.

McLellan SL, Roguet A. 2019. The unexpected habitat in sewer pipes for the propagation of microbial communities and their imprint on urban waters. Current Opinion in Biotech 57:34–41

Feng S,Bootsma MJ,McLellan SL. 2018. Human-Associated Lachnospiraceae Genetic Markers Improve Detection of Fecal Pollution Sources in Urban Waters. Appl Environ Microbiol 84:e00309-18.

Olds HT, Corsi SR, Dila DK, Halmo KM, Bootsma MJ, and McLellan SL. 2018. High levels of sewage contamination released from urban areas after storm events: A quantitative survey with sewage specific bacterial indicators. PLoS MED 15(7): e1002614.

Please click here for a complete list of publications.