IRIS

Nitrite

CASRN 14797-65-0

Noncancer Assessment

Reference Dose for Oral Exposure (RfD) (PDF) (7 pp, 90 K) last updated: 01/31/1987

System RfD (mg/kg-day) Basis PoD Composite UF Confidence
Hematologic 1 x 10-1 Methemoglobinemia NOEL : 1.0
mg/kg-day
1
MF: 10
High

 


Reference Concentration for Inhalation Exposure (RfC) (PDF) (7 pp, 90 K)
Not assessed under the IRIS Program.

 

Cancer Assessment

Weight of Evidence for Cancer (PDF) (7 pp, 90 K)
Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Oral Exposure (PDF) (7 pp, 90 K)

Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure (PDF) (7 pp, 90 K)

Not assessed under the IRIS Program.


Note: The nitrite (re)assessment was suspended in Dec 2018, but may be restarted as Agency priorities change.

Assessment Manager(s): James Avery (avery.james@epa.gov)

Step Assessment Materials Released to the Public Release Date Public Meeting Date
1 Problem Formulation Materials 09/2017 09/2017
  Suspended 12/2018  

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