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International Risk & Toxicology Institute, LLC

Advancing environmental and public health through science

IR&TI provides independent, science-based expertise in toxicology and risk assessment for governments, international organizations, and institutions worldwide.

International Risk & Toxicology Institute, LLC

Silver Spring, MD, USA

About IR&TI

The International Risk & Toxicology Institute, LLC (IR&TI) is built upon an unwavering commitment to scientific rigor, professional integrity, and independent advice for advancing the protection of environmental and public health. IR&TI was established to address rapidly evolving environmental health challenges at a global level through a multidisciplinary, international network of experts.

Our Mission

IR&TI promotes human and environmental health through science-driven research, expert consultation, and training in toxicology and risk assessment.

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Our Vision

Our vision is to be a preeminent global authority in evidence-based toxicology and risk assessment, empowering organizations to make informed decisions that protect public and environmental health.

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What We Do

IR&TI provides value to clients through a set of core service domains that span scientific consultation, research, training, and independent review.

Scientific Consultation

  • Safety assessments for chemicals, pharmaceuticals, and consumer products.
  • Support for global regulatory submissions (USEPA, FDA, ECHA, OECD).

Risk Assessment & Policy

  • Human and ecological risk assessments for environmental and occupational exposures.
  • Benchmark dose modeling, dose-response assessment, and uncertainty analysis.

Training & Capacity Building

  • Workshops, webinars, and courses in toxicology and risk assessment.
  • Customized programs for regulators, academics, and industry professionals.

Research & Innovation

  • Collaborative research in computational toxicology and novel methodologies.
  • Focus on nanotoxicology, in vitro alternatives, and systems biology.

Scientific Communication

  • Technical reports, peer-reviewed publications, and regulatory dossiers.
  • Translation of complex scientific results for decision makers and stakeholders.

Expert Panels & Peer Review

  • Independent peer review of protocols, safety dossiers, and risk assessments.
  • Participation in advisory committees and scientific panels.

Scientific Leadership

IR&TI is led by internationally recognized experts with decades of experience in toxicology, environmental health, and risk assessment across academia, government, and international organizations.

Abdel-Razak M. Kadry

Abdel-Razak M. Kadry, DVM, PhD, DABT

Founder & Scientific Director

An internationally recognized leader in toxicology, risk assessment, and public health with more than 35 years of experience across academia, government service, and global health initiatives.

Former Director of the U.S. EPA’s Integrated Risk Information System (IRIS); PhD in Toxicology; Doctor of Veterinary Medicine; Board-certified by the American Board of Toxicology.

Babasaheb (Bob) Sonawane

Babasaheb (Bob) Sonawane, PhD

Senior Scientific Advisor

A globally recognized expert in toxicology and human health risk assessment with more than four decades of experience in academia, U.S. federal agencies, and international science policy.

Former Group Chief at the U.S. EPA with over 30 years leading interdisciplinary research and health risk assessments; PhD in Entomology with a minor in Toxicology; author and co-author of more than 140 peer-reviewed publications.

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Evidence-based toxicology and risk assessment for a safer world.

Join us in redefining safety through science.