Risk Assessment

Recent Additions on Risk Assessment Research

Find current and past announcements about human health and ecological risk assessments, public meetings, workshops, and other related products.

More Risk Assessment Recent Additions

July 24, 2020
EPA is announcing an independent peer review on the draft documents, Physiologically Based Pharmacokinetic (PBPK) Modeling for Chloroprene (Ramboll, 2020) and Supplement: Uncertainty Analysis of In Vitro Metabolic Parameters and of In Vivo Extrapolation (IVIVE) Used in a Physiologically Based Pharmacokinetic (PBPK) Model for Chloroprene (U.S. EPA, 2020). It will be conducted by Versar, an EPA contractor for the external scientific peer review. EPA will also convene a public meeting as a part of this peer review to allow the public an opportunity to provide oral comments to the peer reviewers. Written comments will be solicited and will be provided to the external peer reviewers. Written comments can be provided in the docket (Id Number EPA-HQ-ORD-2020-0181). [ Federal Register Notice Jul 24, 2020]
May 28, 2020
EPA announced the release of the draft document, Systematic Review Protocol for the Methylmercury IRIS Assessment (Preliminary Assessment Materials) for a 45-day public comment period as announced in the Federal Register. The deadline for comments is July 13, 2020. [Federal Register Notice May 28, 2020]
March 13, 2020
In March 2020, EPA announced a new website for finding key EPA resources about the Coronavirus (COVID-19) virus. Additional information can be found on CDC's Coronavirus (COVID-19) website, a list of Disinfectants EPA's Pesticide Program recommend (today) to ward off spreading the virus, and CDC's list of symptoms to watch for.
January 21, 2020
EPA announced the availability of the Guidelines for Human Exposure Assessment (hereafter "Guidelines"). The Guidelines present the current policies and practices of exposure assessors across the Agency and supersede the 1992 Guidelines for Exposure Assessment Edition.
December 31, 2019
EPA announced the release of the final report, Integrated Science Assessment for Particulate Matter. The Integrated Science Assessment (ISA) for Particulate Matter(PM) review includes information spanning scientific disciplines including atmospheric science, exposure, dosimetry, to assess the health and welfare effects related to particulate matter. [Federal Register Notice Jan 27, 2020]
December 19, 2019
EPA announces the availability of the Systematic Review Protocol for the Polychlorinated Biphenyls (PCBs) Noncancer IRIS Assessment (Preliminary Assessment Materials). The deadline for comments is January 21, 2020.
December 19, 2019
EPA's Ecological Risk Assessment Support Center (ERASC) announces the release of the final report, Summary Report. Separating Anthropogenic Metals Contamination from Background: A Critical Review of Geochemical Evaluations and Proposal of Alternative Methodology. This technical paper relates to the issue of background soil chemical demarcation at metals contaminated sites.
December 18, 2019
EPA announced the release of the final report, Provisional Peer-Reviewed Toxicity Value (PPRTV) Assessment for p -α,α,α-Tetrachlorotoluene on the PPRTV website.
December 18, 2019
EPA announced the release of the final report, Provisional Peer-Reviewed Toxicity Value (PPRTV) Assessment for 2-Nitropropane on the PPRTV website.
December 18, 2019
EPA announced the release of the IRIS Program Outlook Update (December 2019) on the IRIS website which includes updates to the list of IRIS Assessments that are currently in development.
November 18, 2019
EPA's Office of Land Management and Emergency Management (OLEM) announced the availability of updated Regional Screening Level (RSL) tables. The New Tables were generated to reflect changes in the toxicity and chemical-specific parameters as per the RSL hierarchies.
October 08, 2019
EPA announced the release of the draft document, IRIS Assessment Plan (IAP) for Inorganic Mercury Salts (Scoping and Problem Formulation Materials), for a 30-day public review and comment period. The IAP will be discussed with the public on December 5, 2019 at an IRIS Public Science Meeting (Webinar). More information on this event can be found by visiting the public meeting website. The public comment period for the IAP closes on November 7, 2019. [Federal Register Notice Oct 8, 2019]
October 08, 2019
EPA announced the release of the IRIS Program Outlook Update (October 2019) on the IRIS website which includes updates to the list of IRIS Assessments that are currently in development.
September 26, 2019
EPA is announcing the availability of the document, Integrated Science Assessment for Ozone and Related Photochemical Oxidants (First External Review Draft) for public review and comments.The deadline for comments is December 2, 2019. [Federal Register Notice Sep 26, 2019]
September 23, 2019
EPA announces the availability of the All-Ages Lead Model (AALM), Version 2 software with updated supporting documentation (External Review Draft). The AALM Model is scheduled to undergo an independent peer review by EPA's Science Advisory Board in October 2019. For more information related to scheduling and peer reviewers for this new tool, please visit the SAB AALM Project website. [Federal Register Notice Sep 24, 2019]
May 28, 2019
EPA announced the release of the draft document, Updated Problem Formulation and Systematic Review Protocol for the Inorganic Arsenic IRIS Assessment, for a 30-day public review and comment period. The deadline for comments is June 27, 2019. [Federal Register Notice May 28, 2019]
May 16, 2019
EPA's Office of Land Management and Emergency Management (OLEM) announced the availability of updated Regional Screening Level (RSL) tables. The New Tables were generated to reflect changes in the toxicity and chemical-specific parameters as per the RSL hierarchies.
April 30, 2019
EPA is announcing the availability of the final report, Application of the Sea-Level Affecting Marshes Model (SLAMM) to the Lower Delaware Bay, with a Focus on Salt Marsh Habitat. This report presents future projections of change for seven salt marsh areas of the Delaware Bay, using the SLAMM model.
April 23, 2019
EPA announced the availability of a Provisional Peer-Reviewed Toxicity Value (PPRTV) Assessment for 2-Ethylhexanol (CASRN 104-76-7). Subchronic and chronic provisional RfDs, subchronic and chronic provisional RfCs, and a provisional oral slope factor were derived in this assessment.
April 04, 2019
EPA announces the availability of the IRIS Assessment Plan for Methylmercury (Scoping and Problem Formulation Materials) for a 30-day public comment period. EPA also announces a public science meeting (via webinar) scheduled for May 15, 2019. Deadline for comments is May 6, 2019. [FR Notice Apr 4, 2019]
April 02, 2019
EPA announced the release of the IRIS Program Outlook Update (April 2019) on the IRIS website. The April 2019 update lists IRIS Assessments that are currently in development, assessments that have been discontinued or suspended, and projected public milestone(s). This update comes after the release of the first Program Outlook notice announced in December 2018.
March 15, 2019
EPA announces the availability of the Systematic Review Protocol for the Hexavalent Chromium IRIS Assessment (Preliminary Assessment Materials) for a 45-day public comment period. EPA also announces at this time, a public science meeting (via webinar) scheduled for April 24, 2019 to discuss this draft report. [Federal Register Notice Mar 15, 2019]
February 06, 2019
EPA announced an update to Chapter 3 (Water and Other Select Liquids) of the Exposure Factors Handbook (2011 Edition). This update includes new information and factors on non-chemical-specific information used to assess human exposure to environmental contaminants that has become available since the 2011 Edition was released.