Safety of Nanoscale Materials | National Institute of Environmental Health Sciences
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Archived: 2026-04-23 17:19
Safety of Nanoscale Materials | National Institute of Environmental Health Sciences
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NIEHS Speakers Bureau — Topics NIEHS Staff Can Speak On
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Nigel J. Walker, Ph.D.
Audience:
K-12, undergraduates, graduate students, and community organizations
Biography
Dr. Walker, Deputy Director of the National Toxicology Program at NIEHS, has over 15 years experience in environmental molecular toxicology, quantitative dose response modeling and risk analysis, with particular emphasis on understanding the carcinogenicity of mixtures of dioxins and other persistent organic pollutants, and the safety of nanoscale materials.
He received his B.Sc. in Biochemistry in England from the University of Bath in 1987 and his Ph.D. in Biochemistry from the University of Liverpool in 1993. Following postdoctoral training in environmental toxicology at the Johns Hopkins School of Hygiene and Public Health in Baltimore MD, he moved to the NIEHS, where he has been since 1995.
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Our speakers can travel up to 50 miles from the NIEHS campus in Research Triangle Park, North Carolina. Please allow at least four weeks to make arrangements.
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The primary use of the collection of your question or comment is for replying to your question or comment. It is optional to provide your name, your email address or phone number, or your organization. If you do not provide this information, you would not be able to be contacted with a reply. Collection of this information is authorized under 42 U.S.C. 203, 241, 289l-1 and 44 U.S.C. 3101, and Section 301 and 493 of the Public Health Service Act. The Privacy Act System of Records Notice (SORN) that covers collection of this information is 09-25-0156 Records of Participants in Programs and Respondents in Surveys Used to Evaluate Programs of the Public Health Service, HHS/PHS/NIH/OD and 09-90-1901 HHS Correspondence, Comment, Customer Service, and Contact List Records. Please see our
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Last Reviewed: December 22, 2025
Skip Navigation
Safety of Nanoscale Materials
Close the left navigation
Add
NIEHS Speakers Bureau — Topics NIEHS Staff Can Speak On
Please fill out the form below to request a speaker.
Nigel J. Walker, Ph.D.
Audience:
K-12, undergraduates, graduate students, and community organizations
Biography
Dr. Walker, Deputy Director of the National Toxicology Program at NIEHS, has over 15 years experience in environmental molecular toxicology, quantitative dose response modeling and risk analysis, with particular emphasis on understanding the carcinogenicity of mixtures of dioxins and other persistent organic pollutants, and the safety of nanoscale materials.
He received his B.Sc. in Biochemistry in England from the University of Bath in 1987 and his Ph.D. in Biochemistry from the University of Liverpool in 1993. Following postdoctoral training in environmental toxicology at the Johns Hopkins School of Hygiene and Public Health in Baltimore MD, he moved to the NIEHS, where he has been since 1995.
Request Speakers
All required fields have the word (Required) after the label
Our speakers can travel up to 50 miles from the NIEHS campus in Research Triangle Park, North Carolina. Please allow at least four weeks to make arrangements.
Privacy Act Statement
The primary use of the collection of your question or comment is for replying to your question or comment. It is optional to provide your name, your email address or phone number, or your organization. If you do not provide this information, you would not be able to be contacted with a reply. Collection of this information is authorized under 42 U.S.C. 203, 241, 289l-1 and 44 U.S.C. 3101, and Section 301 and 493 of the Public Health Service Act. The Privacy Act System of Records Notice (SORN) that covers collection of this information is 09-25-0156 Records of Participants in Programs and Respondents in Surveys Used to Evaluate Programs of the Public Health Service, HHS/PHS/NIH/OD and 09-90-1901 HHS Correspondence, Comment, Customer Service, and Contact List Records. Please see our
Web Policies
for additional information regarding our Privacy Policy.
Back
to Top
Last Reviewed: December 22, 2025