| Agent Name |
DDT |
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| Alternative Name |
Dichlorodiphenyltrichloroethane |
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| CAS Number |
50-29-3 |
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| Formula |
C14-H9-Cl5 |
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| Major Category |
Pesticides |
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| Synonyms |
1,1'-(2,2,2-Trichloroethylidene)bis(4-chlorobenzene); 1,1,1-Trichloor-2,2-bis(4-chloor fenyl)-ethaan [Dutch]; 1,1,1-Trichlor-2,2-bis(4-chlor-phenyl)-aethan [German]; 1,1,1-Trichloro-2,2-bis(4,4'-dichlorodiphenyl)ethane; 1,1,1-Trichloro-2,2-bis(4-chlorophenyl)ethane; 1,1,1-Trichloro-2,2-bis(p-chlorophenyl)ethane; 1,1,1-Trichloro-2,2-di(4-chlorophenyl)-ethane; 1,1,1-Tricloro-2,2-bis(4-cloro-fenil)-etano [Italian]; 1,1,1-Tricloro-2,2-bis(4-cloro-fenyl)-etano [Italian]; 1,1-Bis-(p-chlorophenyl)-2,2,2-trichloroethane; 2,2-Bis(p-chlorophenyl)-1,1,1-trichloroethane; 4,4'-DDT; 4,4'-Dichlorodiphenyltrichloroethane; Aavero-extra; Agritan; Anofex; Arkotine; Azotox M 33; Benzochloryl; Bosan Supra; Bovidermol; Chlofenotan; Chlorophenothan; Chlorophenothane; Chlorophenothanum; Chlorophenothanum technicum; Chlorophenotoxum; Chlorphenothan; Chlorphenotoxum; Citox; Clofenotane; Clofenotane technique; Clofenotano [INN-Spanish]; Clofenotanum [INN-Latin]; D.D.T. technique; DDT 50 WP; Deoval; Detox; Detox (pesticide); Detoxan; Dibovin; Dicophane; Didigam; Didimac; Dodat; Dykol; Estonate; Ethane, 1,1,1-trichloro-2,2-bis(4-chlorophenyl)-; Ethane, 1,1,1-trichloro-2,2-bis(p-chlorophenyl)-; Genitox; Gesafid; Gesarol; Guesarol; Gyron; Hildit; Ivoran; Ixodex; Klorfenoton [Swedish Pharmacopoeia]; Kopsol; Mutoxan; Neocid; Neocid (VAN); Neocidol; Neocidol (solid); OMS 0016 [French]; OMS 16; PEB1; Parachlorocidum; Pentachlorin; Pentech; Penticidum; Rukseam; Santobane; Tafidex; Trichlorobis(4-chlorophenyl)ethane; Zerdane; alpha,alpha-Bis(p-chlorophenyl)-beta,beta,beta-trichloroethane; p'-Zeidane [France]; p,p'-DDT; p,p'-Dichlorodiphenyltrichloroethane; [ChemIDplus] |
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| Category |
Organochlorine Pesticides |
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| Description |
Colorless crystals or off-white powder with a slight, aromatic odor. [pesticide]; [NIOSH] |
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| Sources/Uses |
Formerly used as an insecticide and pesticide; [HSDB] |
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| Comments |
Still used in some parts of the world, DDT persists in the environment and in animal tissues. It has been especially harmful to predator species of birds. High-dose animal studies show that organochlorine insecticides are toxic to the liver. [LaDou, p. 553] Allergic contact dermatitis reported in farmworkers; [Kanerva, p. 1141] "Despite the billions of pounds of DDT that have been manufactured and used, hepatic injury acquired as the result of occupational or environmental exposure to it remains to be reported." [Zimmerman, p. 413] |
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| Restricted |
All agricultural uses cancelled in 1972 by EPA; [Sullivan, p. 660] |
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| Reference Link |
EXTOXNET - DDT |
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| Exposure Assessment |
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| Skin Designation (ACGIH) |
No |
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| Bioaccumulates |
Yes |
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| TLV (ACGIH) |
1 mg/m3 |
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| PEL (OSHA) |
1 mg/m3 |
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| MAK |
1 mg/m3, inhalable fraction |
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| IDLH (NIOSH) |
500 mg/m3 |
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| Excerpts from Documentation for IDLHs |
Human data:Exposure of volunteers to 423 mg/m3 for periods of 1 hour/day for 6 days has been reported to only cause eye irritation [Neal et al. 1994]. It has been reported that 500 mg/kg is the lethal oral dose [Windholz 1983]. [Note: An oral dose of 500 mg/kg is equivalent to a 70�kg worker being exposed to about 23,000 mg/m3 for 30 minutes, assuming a breathing rate of 50 liters per minute and 100% absorption.] |
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| Vapor Pressure |
2 x 10 -07 mm Hg |
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| Half Life |
1-2 years to eliminate absorbed dose; [TDR, p. 440] |
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| Reference Link |
ATSDR - ToxFAQs - DDT, DDE, and DDD |
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| Flammability (NFPA) |
2: high ambient temperature required |
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| Adverse Effects |
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| Hepatotoxin |
Hepatotoxin, Secondary |
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| Other Poison |
Organochlorine Pesticide |
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| IARC Carcinogen |
Possible Carcinogen |
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| Links to Other NLM Databases |
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| Health Studies |
Human Health Effects from Hazardous Substances Data Bank: DDT
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