Ralph E. Morris

More than 25 years of experience in air quality issues, with particular emphasis in the development and application of advanced air quality models; directs air quality modeling and analysis, emission inventory development, control strategy evaluation, and regulatory policy analysis projects.

• Directed the development of ENVIRON’s comprehensive Air-Quality Model with extensions (CAMx) multi-scale photochemical grid ozone, particulate matter (PM), visibility, mercury and other air toxics modeling system.
• Directed and assisted in regional particulate matter, ozone and haze modeling using CMAQ and CAMx for the western (WRAP), Midwest (MRPO) and Southeast Regional Planning Organization (RPOs) for the development of Regional Haze State Implementation Plans (SIPs) and the regional component of fine particulate and 8-hour ozone SIPs.
• Performed several studies for eastern U.S. Stakeholders (e.g., states, utilities, trade organizations, and other industries) using the CAMx advanced ozone apportionment capability to aid in the identification of ozone source-receptor relationships and the design of optimal control strategies for reducing ozone.
• Directed or assisted in the photochemical modeling component of 8-hour ozone Early Action Compact (EAC) SIPs in Colorado, New Mexico, Oklahoma, and Texas.
• Provided expert testimony in several litigations involving air quality issues.
• Performed PM10 modeling of the Owens Valley and Imperial County California and Maricopa County (Phoenix) Arizona and Rogue Valley (Medford) Oregon regions to support the development of PM10 SIP control plans.
• Assisted in the development of the an ozone and PM10 emission control plan for the South Coast (Los Angeles) Air Basin (SoCAB) as part of the 1994, 1997 and 2003 Air Quality Management Plans.
• Performed numerous CALMET/CALPUFF modeling studies to estimate the air quality and visibility impacts at Class I areas due to proposed new sources.
• Selected by the Environmental Council of States (ECOS) Ozone Transport Assessment Group (OTAG) to review and determine the implications of existing ozone measurement and modeling studies of the eastern US.

MA, Mathematics, University of California, Davis

AB, Mathematics, University of California, Berkeley

Member, Air Quality Modeling Subcommittee (AQMS) of the Science Advisory Board (SAB)

Member, EPA’s Fine Particulate Air Quality Modeling Workgroup