Scientific Excellence to Serve Others

Founded in 1999, toXcel is committed to promoting and improving the safety, health, and well-being of people everywhere. We work with businesses, government agencies and communities to offer reliable scientific, analytic, technical, and regulatory services.

Headquartered in the Metropolitan Washington, DC region, with offices located across the U.S. and in the United Kingdom, toXcel brings worldwide expertise to challenging scientific issues in toxicology, environment, transportation, public health, and other domains.

toXcel Presentations at Upcoming ISSA Events

Melba Morrow, Director of Toxicology in toXcel’s Life Sciences Division, will provide a presentation and serve as a panelist at the upcoming two-day Twelfth Antimicrobial Workshop in Arlington, Virginia on June 7 and 8, 2018.  Melba’s topic will be “EPA/FDA Jurisdiction of Food Use Antimicrobials and Antimicrobials Applied to Medical Devices”.  The workshop will provide regulatory updates on issues affecting antimicrobial pesticides and will include information on topics that are vital to individuals with regulatory responsibilities. 

Gary Whitmyre, Senior Director of Exposure and Risk Assessment in toXcel’s Life Sciences Division, will provide presentations on two current topics at the upcoming ISSA Forum in Arlington, Virginia on September 11 and 12, 2018.  The two topics that Gary will address will be “An Update of the New California Proposition 65 Warning Requirements” and “An Update of the California Safer Consumer Products Regulations”. 

ISSA is a trade association of manufacturers, formulators, and distributors of cleaning products (  The Forum in general will be focused on legislative, regulatory and sustainability issues of particular interest to stakeholders.  toXcel is a corporate member and proud supporter of ISSA.

Dr. Bryan Katz Elected Vice Chair of Research of National Committee on Uniform Traffic Control Devices

On Thursday, January 4, 2018, Dr. Bryan Katz was elected as the Vice Chair of Research for the National Committee on Uniform Traffic Control Devices.  Bryan has served as a member of the Research Committee and the Guide and Motorist Information Signs Committee since 2004.  He is looking forward to serving in this role along with the newly elected Chair, Dr. Gene Hawkins of Texas A&M University, along with the newly elected Vice Chair of Programs, Mr. Bill Lambert of the New Hampshire Department of Transportation. 

Upcoming Publication on toXcel Research

We’re pleased to announce that The Journal of the Air & Waste Management Association will be publishing a manuscript by Gary Whitmyre, Senior Director of Exposure and Risk Assessment in toXcel’s Life Sciences Division.  The publication, entitled “Probabilistic Assessment of the Potential Indoor Air Impacts of Vent-Free Gas Heating Appliances in Energy-Efficient Homes in the U.S.” will be placed in print this year.  The research was performed for the Propane Education & Research Council, and the full report on which the publication is based is available on their web site.