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Dichlorodiphenyldichloroethylene (DDE)

CAS Number

72-55-9

Synonym

DDE; DDT Dehydrochloride; 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene; p,p'-DDE; p,p'-dichlorodiphenyldichloroethylene; NCI-C00555

Occurrence/Use

Degradation product of DDT

Dichlorodiphenyldichloroethylene (DDE)

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: 
Proposition 65 NSRLs/MADLs
Inhalation Unit Risk (μg/cubic meter)-1: 
9.7 E-5
Inhalation Slope Factor (mg/kg-day)-1: 
3.4 E-1
Oral Slope Factor (mg/kg-day)-1: 
3.4 E-1
Comments/References: 

Proposition 65

Chemical Status

Cancer: 
Currently listed
Reproductive Toxicity: 
Currently listed

Cancer

Listed as causing: 
Cancer
Date of Listing: 
01/01/1989
Basis for Listing: 
State's Qualified Experts

Reproductive Toxicity

Listed as causing: 
Developmental Toxicity
Male Reproductive Toxicity
Developmental Toxicity
Date of Listing: 
03/30/2010
Basis for Listing: 
Authoritative Bodies-US Environmental Protection Agency
Male Reproductive Toxicity
Date of Listing: 
03/30/2010
Basis for Listing: 
Authoritative Bodies-US Environmental Protection Agency

Safe Harbor Levels

Cancer
No Significant Risk Level (NSRL): 
2 µg/day

Comments

Listing for developmental toxicity and male reproductive toxicity uses the synonym 1,1-Dichloro-2,2-bis(p-chlorophenyl)ethylene (DDE). DDD, DDE, and DDT are listed separately under Proposition 65. The NSRLs are for DDT, DDE, and DDD in combination.

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