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.

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.

toXcel Presents Webinar on California Regulatory Issues

Gary Whitmyre, Senior Director of Exposure and Risk Assessment in toXcel’s Life Sciences Division, shared center stage with Jon Benjamin of the San Francisco law firm Farella Braun + Martel LLP in a webinar presentation of two current California regulatory topics on October 24, 2017.  The two topics that Gary and Jon addressed in their “tag-team” presentations were “Update on California Proposition 65” and “California Safer Consumer Products (SCP) Regulations”.  This webinar was facilitated by ISSA, which is the worldwide cleaning industry association of manufacturers and distributors of cleaning products and equipment (

Toxcel at TRB 2018

Toxcel was proud to once again sponsor the Transportation Research Board’s Annual Meeting. Toxcel staff attended committee meetings and presented on a variety of topics, including:

  • User Information Needs for Connected Vehicle Environments and Automation
  • Motorist Comprehension of Lane Reduction Signing Alternatives
  • Simulator Evaluation of Signing for Complex Interchanges
  • Field Study of Driver Exiting Behavior at Complex Interchanges
  • Knowledge Management Among Transportation Agencies

Papers and presentations are now available on TRB’s website. We look forward to seeing you in 2019!