Greg Yarwood

PhD, Principal

Contact Greg Yarwood

T: +1 415 899 0704

Dr. Greg Yarwood is an internationally recognized expert with over 20 years’ experience in atmospheric chemistry, air quality modeling, photochemical model development, and interpreting ambient air quality data and emissions inventory development, particularly for motor vehicles and biogenic sources. He directs air quality, meteorological and emissions modeling studies for clients in government and industry, with emphasis on photochemical air pollution issues, such as ozone, secondary particulate matter (PM), visibility and air toxics. Greg leads the development of Ramboll’s Comprehensive Air Quality Model with extensions (CAMx), and has implemented advanced modeling techniques for source attribution and sensitivity analysis, including OSAT, PSAT, DDM, HDDM and process analysis. He also designed the reactive tracer methodology used for modeling air toxics in CAMx. For USEPA, Greg developed the Carbon Bond 2005 (CB05) chemical mechanism that is used for ozone and PM in CAMx and USEPA’s CMAQ model. Greg holds a PhD in chemistry from Cambridge University. He is a member of USEPA’s Board of Scientific Counselors for the Clean Air Research Program.