Skip directly to search Skip directly to A to Z list Skip directly to site content Skip directly to page options
Home

Chlorinated Dibenzo-p-dioxins (CDDs)

Molecules

CDDs are a family of 75 chemically related compounds commonly known as chlorinated dioxins. One of these compounds is called 2,3,7,8-TCDD. It is one of the most toxic of the CDDs and is the one most studied.

In the pure form, CDDs are crystals or colorless solids.

CDDs enter the environment as mixtures containing a number of individual components. 2,3,7,8-TCDD is odorless and the odors of the other CDDs are not known.

CDDs are not intentionally manufactured by industry except for research purposes. They (mainly 2,3,7,8-TCDD) may be formed during the chlorine bleaching process at pulp and paper mills. CDDs are also formed during chlorination by waste and drinking water treatment plants. They can occur as contaminants in the manufacture of certain organic chemicals. CDDs are released into the air in emissions from municipal solid waste and industrial incinerators.


Related Resources for Chlorinated Dibenzo-p-dioxins (CDDs)

  • Update to the ATSDR Policy Guideline for Dioxins and Dioxin-Like Compounds in Residential Soil

  • Interaction Profiles

    Succinctly characterizes the toxicologic and adverse health effects information for mixtures of hazardous substances.

  • Minimal Risk Levels (MRLs)

    The MRL is an estimate of the daily human exposure to a hazardous substance that is likely to be without appreciable risk of adverse, non-cancer health effects over a specified duration of exposure. The information in this MRL serves as a screening tool to help public health professionals decide where to look more closely to evaluate possible risk of adverse health effects from human exposure.

  • National Report on Human Exposure to Environmental Chemicals

    Report provides an ongoing assessment of the exposure of the U.S. population to environmental chemicals using biomonitoring.

  • National Exposure Registry (NER)

    Database of individuals who have been exposed to a hazardous substance at selected locations. All data collected are confidential.

  • Public Health Statement

    Summary about a hazardous substance taken from Chapter One of its respective ATSDR Toxicological Profile.

  • Published Reports

    An online report about specific substance.

  • ToxFAQsTM

    Fact sheet that answers the most frequently asked questions about a contaminant and its health effects.

  • ToxFAQsTM: Chemical Agent Briefing Sheets (CABS)

    Fact sheet that answers the most frequently asked questions about a contaminant and its health effects.

  • Toxicological Profile

    Succinctly characterizes the toxicologic and adverse health effects information for a hazardous substance.

    • top arrow top
    Contact Us:
    • Agency for Toxic Substances and Disease Registry
      4770 Buford Hwy NE
      Atlanta, GA 30341
    • (800) 232-4636
      TTY: (888) 232-6348
      24 Hours/Every Day
    • cdcinfo@cdc.gov
    USA.gov: The U.S. Government's Official Web PortalDepartment of Health and Human Services
    Agency for Toxic Substances and Disease Registry, 4770 Buford Hwy NE, Atlanta, GA 30341
    Contact CDC: 800-232-4636 / TTY: 888-232-6348

    A-Z Index

    1. A
    2. B
    3. C
    4. D
    5. E
    6. F
    7. G
    8. H
    9. I
    10. J
    11. K
    12. L
    13. M
    14. N
    15. O
    16. P
    17. Q
    18. R
    19. S
    20. T
    21. U
    22. V
    23. W
    24. X
    25. Y
    26. Z
    27. #