Regi Oommen

Regi Oommen

Senior Environmental Scientist

As a kid, I loved baseball, especially the statistics and data behind it. I would go through box scores in the paper the next day to keep track of my favorite team and players, logging the information into my Commodore 64. I enjoyed exploring the data and looking for trends. Working at ERG on a variety of emission inventory, ambient monitoring, and air quality modeling projects has allowed me to continue my passion for analyzing big data sets. And now I get to tell the story behind the data too.


Regi Oommen is a senior scientist and staff manager in ERG’s Morrisville office. Regi has led and supported a variety of emission inventory and ambient monitoring data characterization projects since 1996. He manages several air quality databases for the U.S. Environmental Protection Agency, as well as for state, local, tribal air agencies. Recently, in projects for EPA and other clients, he has been using environmental justice metrics to evaluate air quality in overburdened communities.

Regi holds an M.S. in atmospheric science, a B.S. in meteorology, and a B.A. in chemistry from North Carolina State University (Go Pack!). Regi lives in Raleigh, North Carolina, with his wife and two sons. He enjoys volunteering at church and with his older son’s high school marching band, as well as coaching his younger son’s little league baseball team (Go Mets!).