Pentachlorophenol

CAS Number

87-86-5

Synonym

AI3-00134; Caswell No. 641; Chlorophen; 1-hydroxypentachlorobenzene; NCI-C5933; NCI-C55378; NCI-C56655; PCP; Pentachlorofenol; Pentachlorol; Pentachlorophenate; 2,3,4,5,6-pentachlorophenol; Pentanol; EPA Pesticide Code: 063001

Occurrence/Use

Wood preservative in specified outdoor applications, such as utility poles. No longer registered as a pesticide in California.

chemical structure of paraquat

Child-Specific Reference Dose

Child-specific refence dose (chRD) (mg/kg-day, unless noted): 1.0 E-3
Last chRD revision: 06/2006
chRD Comments:

OEHHA 2006. Child-Specific Reference Doses (chRDs) for School Site Risk Assessment: Manganese and Pentachlorophenol.

Soil Screening

Last CHHSL revision: 1/2005
CHHSL Comments:

For chemical-specific screening levels for use in assessing contaminated sites, please see HHRA Note 3 (DTSC HERO). https://www.dtsc.ca.gov/assessingrisk/humanrisk2.cfm

Cancer Potency Information

Latest Criteria: California Public Health Goals
Inhalation Unit Risk (μg/cubic meter)-1: 5.1 E-6
Inhalation Slope Factor (mg/kg-day)-1: 1.8 E-2
Oral Slope Factor (mg/kg-day)-1: 8.1 E-2
Last Cancer Potency Revision: Oral 2009, Inhalation 2011
Comments/References:

Inhalation - OEHHA 2009. Air Toxics Hot Spots Program Technical Support Document for Cancer Potencies. Appendix B. Chemical-specific summaries of the information used to derive unit risk and cancer potency values. Updated 2011.

Oral - OEHHA 2009. Public Health Goal for Pentachlorophenol in Drinking Water.

Air

Proposition 65

Chemical Status

Cancer: Currently listed

Cancer

Cancer - Listing Mechanism
Authoritative Bodies-National Toxicology Program
Authoritative Bodies-US Environmental Protection Agency
Listed as causing : Listed as causing: Cancer
Date of Listing:

Safe Harbor Levels

No Significant Risk Level (NSRL)
40 µg/day
Cancer

Public notices related to this chemical

Water

California Public Health Goals Data

Health Risk Category: Carcinogenicity
Public Health Goal (mg/L): 0.0003
Public Health Goal - Download:
Cancer Risk at PHG: 0.000001
MCL value (mg/L): 0.001
Cancer Risk at MCL: 0.000003
Last PHG Revision : 2009