1,1,1-Trichloroethane

CAS Number

71-55-6

Synonym

Trichloroethane; Aerothene TT;Chlorotene; Chlorothane NU; Chlorothene; Chlorothene NU; Chlorothene; TCA VG; Chlorten; Inhibisol; Methyl chloroform; Methylchloroform; Methyltrichloromethane; Trichloroethane;1,1,1-Trichloroethane; CH3CCl3; Chloroethene NU; Chloroform, methyl-; NCI-C04626; Solvent 111; Trichloro-1,1,1-ethane; 1,1,1-Trichloorethan; 1,1,1-Trichloraethan; 1,1,1-Tricloroetano;CF 2; Chloroetene; Chloroethene; Chlorothene sm; Ethana nu; Ici-cf

Occurrence/Use

Solvent, degreaser. Manufacture for domestic use banned in US since 2002.

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

Air

Acute RELs

Acute REL (μg/m3):	68000
Species:	Human
Acute REL Toxicologic Endpoint:	Central nervous system
Acute REL Target Organs:	Nervous system
Severity:	Mild
Last Acute REL Revision:	1999
Acute Reference Exposure Levels Comments:	OEHHA 2008. Technical Supporting Document for Noncancer RELs, Appendix D2. See methyl chloroform.

Chronic REL

Chronic Inhalation REL (μg/m3):	1000
Chronic Target Organs:	Nervous system
Human Data:	No
Last Chronic REL Revision:	2000
Chronic Reference Exposure Levels Comments:	OEHHA 2008. Technical Supporting Document for Noncancer RELs, Appendix D3. See methyl chloroform.

Proposition 65

Chemical Status

Cancer:	Currently listed

Cancer

Cancer - Listing Mechanism

Labor Code

Listed as causing :	Listed as causing: Cancer
Date of Listing:	04/21/2023

Public notices related to this chemical

Chemicals Listed Effective April 21, 2023 as Known to the State of California to Cause Cancer: 1,1,1-Trichloroethane and Leucomalachite Green

Water

California Public Health Goals Data

Health Risk Category:	Neurotoxicity, reproductive toxicity (causes fewer offspring), hepatotoxicity (liver), hematotoxicity (blood effects)
Public Health Goal (mg/L):	1
Public Health Goal - Download:	phg111tca030306.pdf
Cancer Risk at PHG:	n/a
MCL value (mg/L):	0.2
Cancer Risk at MCL:	n/a
Last PHG Revision :	2006
California PHG Comments:	OEHHA 2013. Health Risk Information for Public Health Goal Exceedance Reports