Patricia HoldenView profile
Professor
Professor Patricia Holden is a faculty member at the Bren School of Environment at the University of California, Santa Barbara. Her research focuses on environmental microbiology, microbial ecology, water quality, and biodegradation with particular emphasis on wastewater treatment, nanomaterial ecotoxicology, and environmental health. She holds a PhD in Soil Microbiology from UC Berkeley and a MEng in Civil & Environmental Engineering from UC Berkeley, alongside additional degrees from Purdue University and the University of Tennessee. Her research group investigates microbial processes in environmental systems, including the impacts of nanomaterials on legume symbiosis, stormwater biofilter performance, and tobacco/cannabis debris pollution. Key areas include wastewater-based epidemiology for public health monitoring, fecal source tracking in recreational waters, and assessing environmental risks from emerging contaminants. Recent work highlights include studies on SARS-CoV-2 wastewater surveillance, microfiber pollution from textiles, and ecological impacts of tobacco product waste. She teaches courses like Environmental Biogeochemistry (ESM 202) and Microbial Processes in the Environment (ESM 219). Education: PhD, Soil Microbiology, UC Berkeley MEng, Civil & Environmental Engineering, UC Berkeley MS, Civil Engineering, Purdue University BS, Civil Engineering, University of Tennessee Awards: None explicitly listed in provided text. Advising: Supervises PhD candidate Liviu Iancu and postdoctoral researcher Dong Li. Labs/Teams: Leads research group focused on environmental microbiology and biogeochemistry with active projects in coastal water quality, nanomaterial toxicity, and green infrastructure.








