Dr. P. Grace Tee Lewis is a Senior Health Scientist at the Environmental Defense Fund. Dr. Tee Lewis has expertise in environmental epidemiology, community air monitoring, and geospatial screening and mapping tools to address environmental, climate and health equity.  Her research interests include health impacts of criteria and hazardous air pollutants, particularly to environmental justice communities. She also focuses on community exposures from petrochemical facilities and transportation sectors, and strategies to improve regional air quality and public health. Dr. Tee Lewis leads the Environmental Defense Fund’s Data to Action work in Houston. She provides scientific expertise and guidance to community-based organizations and leaders to build climate/ environmental justice capacity and to implement community science efforts. Furthermore, Dr. Tee Lewis led multi-disciplinary teams in development of regional and national scale environmental justice screening and mapping tools to identify disadvantaged communities and understand drivers leading to neighborhood level cumulative vulnerability.