A widely used farm chemical used as a key ingredient in a new herbicide developed by Dow AgroSciences "possibly" causes cancer in humans, a World Health Organization research unit has determined.
The classification of the weed killer, 2,4-dichlorophenoxyacetic acid, known as 2,4-D, was made by the WHO's International Agency for Research on Cancer (IARC).
The IARC said it reviewed the latest scientific literature and decided to classify 2,4-D as "possibly carcinogenic to humans," a step below the more definitive "probably carcinogenic" category but two steps above the "probably not carcinogenic" category.
IARC's . . .
