Is 2,4-D an endocrine disruptor?
It is not.

The EPA considered this question in both its 2005 decision and its most recent response to the NRDC petition. In both instances the EPA determined that 2,4-D was not an endocrine disruptor. Most recent, in consideration of a number of studies cited by the NRDC, the EPA stated:

“In sum, the data cited by NRDC, Beyond Pesticides, and NYDOH do not support changing the quantitative endpoints for assessing the risk posed by 2,4-D for potential endocrine effects given the equivocal results in the studies cited and/or the high doses involved in the studies.”