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Chemical Sampling Information (CSI)
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General Description

Synonyms: p,p'-DDT; p,p'-Dichlorodiphenyltrichloroethane; 1,1,1-Trichloro-2,2-bis(p-chlorophenyl)ethane

OSHA IMIS Code Number: 0847
IMIS Name History: DDT prior to 5/23/08

Chemical Abstracts Service (CAS) Registry Number: 50-29-3

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: KJ3325000

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: 2761 151

NIOSH Pocket Guide to Chemical Hazards, DDT: chemical description, physical properties, potentially hazardous incompatibilities, and more

Exposure Limits

OSHA Permissible Exposure Limit (PEL):
General Industry: 29 CFR 1910.1000 Z-1 Table -- 1 mg/m3 TWA; Skin

Construction Industry: 29 CFR 1926.55 Appendix A -- 1 mg/m3 TWA; Skin

Maritime: 29 CFR 1915.1000 Table Z-Shipyards -- 1 mg/m3 TWA; Skin
American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 1 mg/m3 TWA; Appendix A3 - Confirmed animal carcinogen with unknown relevance to humans

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 0.5 mg/m3 TWA; Appendix A - NIOSH Potential Occupational Carcinogens


Health Factors

Carcinogenic Classification:

Environmental Protection Agency (EPA): B2; probable human carcinogen

International Agency for Research on Cancer (IARC): Group 2B, possibly carcinogenic to humans [119 KB PDF, 48 pages]

National Toxicology Program (NTP): Reasonably anticipated to be human carcinogen [164 KB PDF, 3 pages]
NIOSH Immediately Dangerous To Life or Health Concentration (IDLH): 500 mg/m3

Potential Symptoms: Paresthesia of tongue, lips, face; tremors; apprehension, dizziness, fatigue, confusion, malaise; headaches; convulsions; paresis of hands; vomiting; eye, skin irritation; (carcinogenic)

Health Effects: Chronic/Cumulative toxicity-(CNS) (HE7) and (HE3); Mutagen (HE2)

Affected Organs: CNS, kidneys, liver, skin, PNS


Literature Basis:
  • No Author: Dichlorodiphenyltrichloroethane (DDT) [164 KB PDF, 3 pages]. Report on Carcinogens (latest edition); U.S. Department of Health and Human Services, Public Health Service, National Toxicology Program.
  • No authors listed: DDT and associated compounds [119 KB PDF, 48 pages]. IARC Monogr. Eval. Carcinog. Risks Hum. Vol. 53: 179-249, 1999.

Monitoring Methods used by OSHA

Laboratory Sampling/Analytical Method:
  • sampling media: Glass Fiber Filter (37 mm)
    maximum volume: 90 Liters   maximum flow rate: 1.5 L/min
    current analytical method: Gas Chromatography; GC/ECD
    method reference: NIOSH Analytical Method (NIOSH S-274)
    method classification: Fully Validated
    note: Transfer filter to glass screw cap bottle within one hour after sampling.
Wipe Sampling Method:
  • sampling media: Whatman 41
    analytical solvent: isooctane
    current analytical method: Gas Chromatography; GC/ECD
Bulk Method: Limit the amount of bulk submitted to one gram or one mL.

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Page last updated: 06/03/2008

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