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EPA Emergency Order on Dacthal (DCPA)

August 8th, 2024

On August 6, 2024 the U.S. Environmental Protection Agency announced the emergency suspension of all registrations of the pesticide dimethyl tetrachloroterephthalate (Dacthal or DCPA) under the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA).

Dacthal (DCPA) Reference Standards

AccuStandard offers Neat and Single Component Certified Reference Materials (CRMs) for the pesticide, Dacthal (DCPA), CAS # 1861-32-1 as well as DCPA Diacid CAS # 2136-79-0.

  1. P-320S-CN
    DCPA Diacid
    100 µg/mL in Acetonitrile
    Single
  2. P-320S
    DCPA Diacid
    100 µg/mL in MeOH
    Single
  3. P-320N
    DCPA Diacid
    Neat
  4. P-196S-CN-10X
    Dacthal
    1000 µg/mL in Acetonitrile
    Single
  5. P-196S
    Dacthal
    100 µg/mL in MeOH
    Single
  6. P-196N
    Dacthal (DCPA)
    Neat

Health Risks of Dacthal (DCPA)

Dacthal (DCPA) is a pesticide registered to control weeds in both agricultural and non-agricultural settings, but is primarily used on crops such as broccoli, brussels sprouts, cabbage and onions. The USEPA has determined that exposure to DCPA is linked to changes to fetal thyroid hormone levels causing complications such as low birth weight, impaired brain development, decreased IQ, and impaired motor skills later in life. Pregnant women involved in tasks such as transplanting, weeding and harvesting in areas where DCPA has been applied are at risk. Spray drift from pesticide application could also put at risk the unborn babies of pregnant individuals living near areas where DCPA is used.

Read the DCPA Emergency Order for more information.

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