IRIS

Nitrate

CASRN 14797-55-8 | DTXSID5024217

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.

Additional EPA toxicity information may be available by visiting the following sites:

Nitrate is being reassessed.

Assessment Manager(s): Andrew Kraft (kraft.andrew@epa.gov), Dahnish Shams (shams.dahnish@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 10/2023 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.

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