Dibutyl phthalate

CASRN 84-74-2

Health Hazard Assessments for Effects Other than Cancer


Reference Dose for Oral Exposure (RfD) (PDF) (11 pp, 107 K) last updated: 01/31/1987

RfD (mg/kg-day) System Basis PoD Composite UF Confidence
1 x10-1 Other Increased mortality NOAEL : 1.25 x102
mg/kg-day
1000 Low

Reference Concentration for Inhalation Exposure (RfC) (PDF) (11 pp, 107 K) last updated: 10/01/1990
Information reviewed but value not estimated.

Cancer Assessment


Weight of Evidence for Cancer (PDF) (11 pp, 107 K) last updated: 09/07/1988

WOE Characterization Framework for WOE Characterization
D (Not classifiable as to human carcinogenicity) Guidelines for Carcinogen Risk Assessment (US EPA, 1986)
Basis:
  • Pertinent data regarding carcinogenicity was not located in the available literature.
  • This may be a synopsis of the full weight-of-evidence narrative.

Quantitative Estimate of Carcinogenic Risk from Oral Exposure (PDF) (11 pp, 107 K)

Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure (PDF) (11 pp, 107 K)

Not assessed under the IRIS Program.


Dibutyl phthalate is being reassessed.

Assessment Manager(s): Xabier Arzuaga (arzuaga.xabier@epa.gov), James (Andre) Weaver (weaver.james@epa.gov)

Step Assessment Materials Released to the Public Release Date Public Meeting Date
1 Problem Formulation Materials N/A N/A
1 Preliminary Assessment Materials 01/2015 02/2015
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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