08
Aug
EPA’s Momentous Decision to Ban the Weed Killer Dacthal/DCPA: An Anomaly or a Precedent?
(Beyond Pesticides, August 8, 2024) With the use of its emergency authority—not used in nearly 40 years, the U.S. Environmental Protection Agency (EPA) on August 7 banned a pesticide (the weed killer Dacthal or DCPA—dimethyl tetrachloroterephthalate) under the “imminent hazard” clause of the federal pesticide law. At the same time, the agency is exercising its authority to prohibit the continued use of Dacthal’s existing stocks, a provision that EPA rarely uses. EPA identified serious concerns about fetal hormone disruption and resulting “low birth weight and irreversible and life-long impacts to children [impaired brain development, decreased IQ, and impaired motor skills] exposed in-utero” and finds that there are no “practicable mitigation measures” to protect against these hazards. The last time EPA issued an emergency action like this was in 1979 when the agency acknowledged miscarriages associated with the forestry use of the herbicide 2,4,5-T—one-half of the chemical weed killer Agent Orange, sprayed over people to defoliate the landscape of Vietnam in the war there—with the most potent form of dioxin, TCDD (2,3,7,8-Tetrachlorodibenzo-p-dioxin). While EPA has been congratulated for using its emergency authority, which it is obviously reluctant to use, and health and environmental activists say could be used broadly, the timeline […]
