Dr. Wu's research attempts to understand the connections between environmental factors and human health outcomes using Geographic Information System (GIS), statistics and advanced data analytics. His current research topics include evaluating the use of SARS-COV-2 virus in wastewater as a predictor of COVID-19 infections, examining the effects of green space access on Alzheimer's disease and related dementias, and examining the effects of the exposure to green space on childhood autism.