Hydrogen chloride

CASRN 7647-01-0

  • IRIS Summary (PDF) (10 pp, 102 K)
  • Status: Hydrogen chloride is not being reassessed by IRIS at this time.

Health Hazard Assessments for Effects Other than Cancer


Reference Dose for Oral Exposure (RfD) (PDF) (10 pp, 102 K)
Not assessed under the IRIS Program.

Reference Concentration for Inhalation Exposure (RfC) (PDF) (10 pp, 102 K) last updated: 07/01/1995

RfC (mg/m3) System Basis PoD Composite UF Confidence
2 x10-2 Respiratory Hyperplasia of nasal mucosa larynx and trachea LOAEL (HEC): 6.1
mg/m3
300 Low

Cancer Assessment


Weight of Evidence for Cancer (PDF) (10 pp, 102 K)
Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Oral Exposure (PDF) (10 pp, 102 K)

Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure (PDF) (10 pp, 102 K)

Not assessed under the IRIS Program.

You will need Adobe Reader to view some of the files on this page. See EPA’s PDF page to learn more.