The widely used farm chemical known as 2,4-D – a key ingredient in a new herbicide developed by the Dow company – “possibly” causes cancer in humans, a World Health Organisation research unit has said.
The classification of the weed killer, 2,4-dichlorophenoxyacetic acid, was made by the WHO’s International Agency for Research on Cancer (IARC).
In March IARC said it had found another popular herbicide – glyphosate – was “probably carcinogenic to humans”. Glyphosate is the key ingredient in Monsanto Co’s Roundup herbicide and other similar products and brands.
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