Nitrate
CASRN 14797-55-8
- IRIS Summary (PDF) (12 pp, 106 K)
- Status: Nitrate is in step 1 at this time; see Quick Check.
- Reregistration Eligibility Decision (RED) (PDF) (36 pp, 297 K)
Noncancer Assessment
Reference Dose for Oral Exposure (RfD) (PDF) (12 pp, 106 K)
last updated: 05/01/1991
| System | RfD (mg/kg-day) | Basis | PoD | Composite UF | Confidence |
|---|---|---|---|---|---|
| Hematologic | 1.6 | Early clinical signs of methemoglobinemia in excess of 10% (0-3 months old infants formula) |
NOAEL
: 1.6 mg/kg-day |
1 | High |
Reference Concentration for Inhalation Exposure (RfC) (PDF) (12 pp, 106 K)
Not assessed under the IRIS Program.
Cancer Assessment
Weight of Evidence for Cancer (PDF) (12 pp, 106 K)
Not assessed under the IRIS Program.
Quantitative Estimate of Carcinogenic Risk from Oral Exposure (PDF) (12 pp, 106 K)
Not assessed under the IRIS Program.
Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure (PDF) (12 pp, 106 K)
Not assessed under the IRIS Program.
Nitrate is being reassessed.
Assessment Manager(s): Rebecca Nachman (nachman.rebecca@epa.gov)
| Step | Assessment Materials Released to the Public | Release Date | Public Meeting Date |
|---|---|---|---|
| 1 | Problem Formulation Materials | 09/2017 | 09/2017 |
| 1 | Preliminary Assessment Materials | TBD | TBD |
| 4 | Public Comment Draft | TBD | TBD |
| 4 | Peer Review Draft | TBD | TBD |
| 7 | Post Final Assessment | TBD |
Please note: Any future dates displayed under Release Date are estimates and subject to change.
You will need Adobe Reader to view some of the files on this page. See EPA’s PDF page to learn more.
