Home - National Toxicology Program
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Archived: 2026-04-23 15:19
Home - National Toxicology Program
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Learn more about the environmental substances NTP is studying
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Featured:
NTP Reimagined Partnership
Read about changes to the NTP's interagency partnership and operational model.
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News Release
Walsh will lead NIH’s research efforts on how the environment affects human health.
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What is NTP?
NTP develops and applies tools of modern toxicology and molecular biology to identify substances in the environment that may affect human health.
Learn More About NTP
Noncancer Health Effects
NTP is assessing evidence that environmental substances may cause noncancer health effects.
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Tox21
The Tox21 Program characterizes potential toxicity of chemicals using cells and isolated molecular targets instead of laboratory animals.
Learn about Tox21
Calendar & Events
Mark your calendar for upcoming meetings, workshops, seminars, symposiums, webinars, and other events hosted by NTP.
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Report on Carcinogens
Publications
NICEATM: Alternative Methods
CEBS: All Study Data
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Calendar & Events
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Health Effects Assessments
Highlighted Research Topics
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Substance Search
Search all substances studied by NTP:
About NTP
Science you can depend on for decisions that matter.
The National Toxicology Program provides the scientific basis for programs, activities, and policies that promote health or lead to the prevention of disease. Founded in 1978, NTP plays a critical role in generating, interpreting, and sharing toxicological information about potentially hazardous substances in our environment. NTP strives to remain at the cutting edge of scientific research and the development and application of new technologies for modern toxicology and molecular biology.
A world leader in toxicology research, NTP has evaluated more than 2800 environmental substances for potential human health effects.
Learn More About NTP
Director
Meet NTP's director
Kyle Walsh, Ph.D.
Learn More
More About NTP
Mission & Goals
Advisory Board & Committees
History & Milestones
Organization
Skip to Main Navigation
Skip to Page Content
NTP Resources
Learn more about the environmental substances NTP is studying
SEE ALL NEWS
SEE UPCOMING EVENTS
Featured:
NTP Reimagined Partnership
Read about changes to the NTP's interagency partnership and operational model.
Learn More
News Release
Walsh will lead NIH’s research efforts on how the environment affects human health.
LEARN MORE
What is NTP?
NTP develops and applies tools of modern toxicology and molecular biology to identify substances in the environment that may affect human health.
Learn More About NTP
Noncancer Health Effects
NTP is assessing evidence that environmental substances may cause noncancer health effects.
Learn More
Tox21
The Tox21 Program characterizes potential toxicity of chemicals using cells and isolated molecular targets instead of laboratory animals.
Learn about Tox21
Calendar & Events
Mark your calendar for upcoming meetings, workshops, seminars, symposiums, webinars, and other events hosted by NTP.
See Upcoming Events
Report on Carcinogens
Publications
NICEATM: Alternative Methods
CEBS: All Study Data
Quick Links
Calendar & Events
Contact Us
Health Effects Assessments
Highlighted Research Topics
Join the Expert Directory
Substance Search
Search all substances studied by NTP:
About NTP
Science you can depend on for decisions that matter.
The National Toxicology Program provides the scientific basis for programs, activities, and policies that promote health or lead to the prevention of disease. Founded in 1978, NTP plays a critical role in generating, interpreting, and sharing toxicological information about potentially hazardous substances in our environment. NTP strives to remain at the cutting edge of scientific research and the development and application of new technologies for modern toxicology and molecular biology.
A world leader in toxicology research, NTP has evaluated more than 2800 environmental substances for potential human health effects.
Learn More About NTP
Director
Meet NTP's director
Kyle Walsh, Ph.D.
Learn More
More About NTP
Mission & Goals
Advisory Board & Committees
History & Milestones
Organization