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Your Environment. Your Health.

Research at NIEHS


The mission of NIEHS is to discover how the environment affects people in order to promote healthier lives. The studies conducted at NIEHS are often long term and high risk in nature and involve unique components, such as epidemiological studies of environmentally associated diseases, toxicological testing of environmental substances and intervention and prevention studies to reduce the effects of exposures to hazardous environments.

NIEHS trains over 200 fellows and post-doctoral scientists on-site annually.

National Toxicology Program Division

NTP is an interagency program that coordinates toxicology testing across the federal government. NTP is headquartered at NIEHS.  NIEHS Director Rick Woychik, Ph.D. also serves as NTP Director. The NIEHS National Toxicology Program Division takes the lead in carrying out the goals of the overall NTP.

NTP develops and applies tools of modern toxicology and molecular biology to evaluate agents of public health concern. NTP shares its findings with stakeholders, including regulatory agencies

NTP accomplishes its mission through an integrated program comprised of five branches and five offices ("/Rhythmyx/assembler/render?sys_contentid=54353&sys_revision=2&sys_variantid=1169&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="1169" sys_dependentid="54353" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="54353" sys_siteid="" sys_folderid="") that are managed by NTP Associate Director, Brian Berridge, D.V.M, Ph.D.

The National Toxicology Program includes the following Branches and Laboratories:

  • Biomolecular Screening ("/Rhythmyx/assembler/render?sys_contentid=33796&sys_revision=14&sys_variantid=1278&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="1278" sys_dependentid="33796" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="33796" sys_siteid="" sys_folderid="")
  • Cellular and Molecular Pathology ("/Rhythmyx/assembler/render?sys_contentid=33883&sys_revision=5&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="33883" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="33883" sys_siteid="" sys_folderid="")
  • NTP Laboratory ("/Rhythmyx/assembler/render?sys_contentid=52442&sys_revision=1&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="52442" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="52442" sys_siteid="" sys_folderid="")
  • Program Operations ("/Rhythmyx/assembler/render?sys_contentid=49740&sys_revision=8&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="49740" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="49740" sys_siteid="" sys_folderid="")
  • Toxicology

The National Toxicology Program (NTP) has a separate website for data, meetings, and reports.

Clinical Research

NIEHS supports and conducts clinical studies to determine how exposure to chemicals or other agents in the environment may influence a variety of diseases. Our Join a Health Study or Clinical Trial webpage has information for participants. 

The Clinical Research Branch works with patients in two facilities:

  • Clinical Research Unit ("/Rhythmyx/assembler/render?sys_contentid=28652&sys_revision=4&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="28652" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="28652" sys_siteid="" sys_folderid="") in Research Triangle Park, North Carolina
  • NIEHS at the NIH Clinical Center ("/Rhythmyx/assembler/render?sys_contentid=28707&sys_revision=3&sys_variantid=639&sys_context=0&sys_authtype=0&sys_siteid=&sys_folderid=" sys_dependentvariantid="639" sys_dependentid="28707" inlinetype="rxhyperlink" rxinlineslot="103" sys_dependentid="28707" sys_siteid="" sys_folderid="") in Bethesda, Maryland

Additionally, the Office of Human Research Compliance provides ethical and regulatory oversight of research that involves human subjects.

At NIEHS, our scientists are highly interactive and are often engaged in interdisciplinary research that encourages novel ideas, innovative hypotheses, and new paradigms.

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