NTP has made a commitment to studying noncancer health effects, and conducts evaluations to assess the evidence that environmental chemicals, physical substances, or mixtures, collectively referred to as substances, cause adverse health effects. NTP also provides opinions on whether these substances may be of concern, given what is known about current human exposure levels. The Office of Health Assessment and Translation (OHAT)
conducts health hazard assessments, workshops, and state-of-the-science evaluations, which are published as NTP monographs, and hosts workshops to address important issues in environmental health sciences. Kristina Thayer, Ph.D. serves as deputy division director for analysis, Division of NTP, NIEHS, and is director of OHAT.
In FY 2015, OHAT published the Handbook for Conducting a Literature-Based Health Assessment Using OHAT Approach for Systematic Review and Evidence Integration, which identifies the standard operating procedures used in evaluations. The table below lists literature analysis projects that were initiated, ongoing, or completed in FY 2015.