Preliminary Assessment Materials
EPA preliminary assessment materials for IRIS chemicals are released early in the assessment process - prior to the development of the draft assessment.
The goal is to obtain input from the scientific community and the public and to engage in early discussions on data that may be used to identify adverse
health effects and characterize dose-response relationships.
1. IRIS: Mar 2021: Systematic Review Protocol for the Inorganic Mercury Salts IRIS Assessment (Preliminary Assessment Materials)
3. IRIS: May 2020: Systematic Review Protocol for the Methylmercury (Mehg) IRIS Assessment (Preliminary Assessment Materials)
4. IRIS: Nov 2023: Protocol for the Nitrate and Nitrite IRIS Assessment (Oral) (Preliminary Assessment Materials)
5. Naphthalene: Mar 2023: Protocol for the Naphthalene IRIS Assessment (Preliminary Assessment Materials)
6. PFAS: Nov 2019: Systematic Review Protocol for the Perfluorononanoic Acid (PFNA) IRIS Assessment (Preliminary Assessment Materials)
7. Uranium: Feb 2024: Protocol for the Uranium IRIS Assessment (Oral) (Preliminary Assessment Materials)
8. Chloroform: Jan 2018: Systematic Review Protocol for the IRIS Chloroform Assessment (Inhalation) (Preliminary Assessment Materials)
9. Polychlorinated Biphenyls (PCBS): Dec 2019: Systematic Review Protocol for the Polychlorinated Biphenyls (PCBS) Noncancer IRIS Assessment (Preliminary Assessment Materials)
10. Vanadium Compounds: Apr 2021: Systematic Review Protocol for the Vanadium and Compounds (Oral Exposure) IRIS Assessment (Preliminary Assessment Materials)